/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 03:53:05,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 03:53:06,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 03:53:06,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 03:53:06,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 03:53:06,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 03:53:06,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 03:53:06,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 03:53:06,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 03:53:06,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 03:53:06,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 03:53:06,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 03:53:06,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 03:53:06,055 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 03:53:06,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 03:53:06,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 03:53:06,056 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 03:53:06,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 03:53:06,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 03:53:06,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 03:53:06,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 03:53:06,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 03:53:06,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 03:53:06,057 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 03:53:06,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 03:53:06,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 03:53:06,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 03:53:06,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 03:53:06,058 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 03:53:06,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 03:53:06,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 03:53:06,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 03:53:06,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 03:53:06,064 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 03:53:06,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 03:53:06,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 03:53:06,065 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 03:53:06,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 03:53:06,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 03:53:06,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 03:53:06,065 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 03:53:06,065 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 03:53:06,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 03:53:06,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 03:53:06,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 03:53:06,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 03:53:06,315 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 03:53:06,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-05-03 03:53:07,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 03:53:07,789 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 03:53:07,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-05-03 03:53:07,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0b1dfea74/aae0cdebf9b243b793b6270b4fee5f27/FLAG2006b8205 [2024-05-03 03:53:07,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0b1dfea74/aae0cdebf9b243b793b6270b4fee5f27 [2024-05-03 03:53:07,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 03:53:07,834 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 03:53:07,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 03:53:07,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 03:53:07,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 03:53:07,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 03:53:07" (1/1) ... [2024-05-03 03:53:07,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f79b6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:07, skipping insertion in model container [2024-05-03 03:53:07,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 03:53:07" (1/1) ... [2024-05-03 03:53:07,899 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 03:53:08,332 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2024-05-03 03:53:08,343 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,343 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,343 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,345 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 03:53:08,409 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 03:53:08,450 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2024-05-03 03:53:08,458 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,458 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,459 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,460 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:53:08,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 03:53:08,531 INFO L206 MainTranslator]: Completed translation [2024-05-03 03:53:08,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08 WrapperNode [2024-05-03 03:53:08,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 03:53:08,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 03:53:08,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 03:53:08,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 03:53:08,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,607 INFO L138 Inliner]: procedures = 278, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2024-05-03 03:53:08,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 03:53:08,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 03:53:08,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 03:53:08,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 03:53:08,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 03:53:08,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 03:53:08,657 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 03:53:08,657 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 03:53:08,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (1/1) ... [2024-05-03 03:53:08,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 03:53:08,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:08,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-05-03 03:53:08,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-05-03 03:53:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 03:53:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 03:53:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-05-03 03:53:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-03 03:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-03 03:53:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 03:53:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 03:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 03:53:08,736 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-03 03:53:08,890 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 03:53:08,892 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 03:53:09,138 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 03:53:09,176 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 03:53:09,177 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2024-05-03 03:53:09,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:53:09 BoogieIcfgContainer [2024-05-03 03:53:09,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 03:53:09,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 03:53:09,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 03:53:09,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 03:53:09,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 03:53:07" (1/3) ... [2024-05-03 03:53:09,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527c0cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:53:09, skipping insertion in model container [2024-05-03 03:53:09,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:53:08" (2/3) ... [2024-05-03 03:53:09,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527c0cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:53:09, skipping insertion in model container [2024-05-03 03:53:09,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:53:09" (3/3) ... [2024-05-03 03:53:09,186 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-05-03 03:53:09,194 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 03:53:09,203 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 03:53:09,203 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 03:53:09,204 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 03:53:09,289 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-03 03:53:09,342 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 03:53:09,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 03:53:09,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:09,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-05-03 03:53:09,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-05-03 03:53:09,402 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 03:53:09,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-03 03:53:09,421 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;@384581a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 03:53:09,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 03:53:09,429 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:09,509 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:09,509 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:53:09,509 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 03:53:09,516 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 95 states. [2024-05-03 03:53:09,516 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:53:09,519 INFO L78 Accepts]: Start accepts. Automaton has currently 97 states, but on-demand construction may add more states Word has length 37 [2024-05-03 03:53:09,523 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:09,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:09,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:09,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1186516571, now seen corresponding path program 1 times [2024-05-03 03:53:09,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:09,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765368739] [2024-05-03 03:53:09,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:53:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 03:53:09,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:53:09,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765368739] [2024-05-03 03:53:09,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765368739] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 03:53:09,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 03:53:09,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-03 03:53:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749300979] [2024-05-03 03:53:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 03:53:09,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-03 03:53:09,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:53:09,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-03 03:53:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-03 03:53:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:09,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:53:09,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-05-03 03:53:09,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:09,888 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:09,930 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:09,930 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:53:09,931 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:53:09,936 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:09,936 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:53:09,936 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:53:09,945 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 184 states. [2024-05-03 03:53:09,945 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:53:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:09,949 INFO L78 Accepts]: Start accepts. Automaton has currently 147 states, but on-demand construction may add more states Word has length 52 [2024-05-03 03:53:09,950 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:09,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 03:53:09,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:09,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:09,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2080445043, now seen corresponding path program 1 times [2024-05-03 03:53:09,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:09,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48974034] [2024-05-03 03:53:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:09,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:53:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 03:53:10,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:53:10,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48974034] [2024-05-03 03:53:10,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48974034] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 03:53:10,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 03:53:10,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-03 03:53:10,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32266704] [2024-05-03 03:53:10,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 03:53:10,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-03 03:53:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:53:10,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-03 03:53:10,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-03 03:53:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:10,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:53:10,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-05-03 03:53:10,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:10,092 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:10,124 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:10,124 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:53:10,124 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:53:10,129 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:10,129 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:53:10,129 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:53:10,135 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 257 states. [2024-05-03 03:53:10,135 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:53:10,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,136 INFO L78 Accepts]: Start accepts. Automaton has currently 220 states, but on-demand construction may add more states Word has length 88 [2024-05-03 03:53:10,137 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:10,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 03:53:10,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:10,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:10,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1727396309, now seen corresponding path program 1 times [2024-05-03 03:53:10,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:10,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406846031] [2024-05-03 03:53:10,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:10,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:10,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:53:10,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674662986] [2024-05-03 03:53:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:10,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:10,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:10,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:53:10,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-03 03:53:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:53:10,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-03 03:53:10,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:53:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 03:53:10,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:53:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 03:53:10,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:53:10,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406846031] [2024-05-03 03:53:10,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:53:10,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674662986] [2024-05-03 03:53:10,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674662986] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:53:10,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:53:10,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-05-03 03:53:10,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116569707] [2024-05-03 03:53:10,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:53:10,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-03 03:53:10,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:53:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-03 03:53:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-05-03 03:53:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:10,604 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:53:10,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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) [2024-05-03 03:53:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:10,604 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:10,700 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:10,701 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:53:10,701 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1] [2024-05-03 03:53:10,703 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:10,703 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~j~1#1] [2024-05-03 03:53:10,704 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1] [2024-05-03 03:53:10,715 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 335 states. [2024-05-03 03:53:10,715 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:53:10,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:10,716 INFO L78 Accepts]: Start accepts. Automaton has currently 298 states, but on-demand construction may add more states Word has length 160 [2024-05-03 03:53:10,720 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:10,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-03 03:53:10,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-05-03 03:53:10,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:10,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:10,928 INFO L85 PathProgramCache]: Analyzing trace with hash 453595751, now seen corresponding path program 2 times [2024-05-03 03:53:10,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:10,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580028585] [2024-05-03 03:53:10,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:10,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:10,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:53:10,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701169644] [2024-05-03 03:53:10,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 03:53:10,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:10,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:10,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:53:11,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-03 03:53:11,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 03:53:11,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 03:53:11,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-03 03:53:11,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:53:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 03:53:11,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:53:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-03 03:53:11,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:53:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580028585] [2024-05-03 03:53:11,619 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:53:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701169644] [2024-05-03 03:53:11,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701169644] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:53:11,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:53:11,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-05-03 03:53:11,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455809982] [2024-05-03 03:53:11,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:53:11,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-03 03:53:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:53:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-03 03:53:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-05-03 03:53:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:11,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:53:11,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.625) internal successors, (266), 16 states have internal predecessors, (266), 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) [2024-05-03 03:53:11,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:11,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:11,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:11,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:11,623 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:11,793 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:11,793 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:53:11,794 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post24#1] [2024-05-03 03:53:11,796 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:53:11,796 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post24#1] [2024-05-03 03:53:11,796 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post24#1] [2024-05-03 03:53:11,807 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 625 states. [2024-05-03 03:53:11,807 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:53:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:53:11,808 INFO L78 Accepts]: Start accepts. Automaton has currently 588 states, but on-demand construction may add more states Word has length 304 [2024-05-03 03:53:11,809 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:11,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-05-03 03:53:12,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:12,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:12,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1990088415, now seen corresponding path program 3 times [2024-05-03 03:53:12,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:12,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825718796] [2024-05-03 03:53:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:12,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:12,086 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:53:12,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181585577] [2024-05-03 03:53:12,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 03:53:12,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:12,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:12,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:53:12,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-03 03:53:12,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-05-03 03:53:12,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 03:53:12,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-03 03:53:12,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:53:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-05-03 03:53:12,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:53:12,906 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-05-03 03:53:12,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:53:12,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825718796] [2024-05-03 03:53:12,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:53:12,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181585577] [2024-05-03 03:53:12,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181585577] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:53:12,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:53:12,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-05-03 03:53:12,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109814044] [2024-05-03 03:53:12,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:53:12,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-03 03:53:12,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:53:12,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-03 03:53:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-05-03 03:53:12,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:12,910 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:53:12,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2024-05-03 03:53:12,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:12,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:12,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:12,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:53:12,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:12,911 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:12,992 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 860 states. [2024-05-03 03:53:12,992 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:53:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:53:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:12,993 INFO L78 Accepts]: Start accepts. Automaton has currently 861 states, but on-demand construction may add more states Word has length 838 [2024-05-03 03:53:12,998 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:13,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-03 03:53:13,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:13,205 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:13,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:13,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1428627807, now seen corresponding path program 4 times [2024-05-03 03:53:13,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:13,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545336738] [2024-05-03 03:53:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:13,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:13,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:53:13,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139355715] [2024-05-03 03:53:13,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-03 03:53:13,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:13,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:13,381 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:53:13,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-03 03:53:14,257 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-03 03:53:14,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 03:53:14,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 3344 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-03 03:53:14,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:53:15,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7676 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 2294 trivial. 0 not checked. [2024-05-03 03:53:15,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:53:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7676 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 2294 trivial. 0 not checked. [2024-05-03 03:53:15,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:53:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545336738] [2024-05-03 03:53:15,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:53:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139355715] [2024-05-03 03:53:15,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139355715] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:53:15,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:53:15,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-05-03 03:53:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303199173] [2024-05-03 03:53:15,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:53:15,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-03 03:53:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:53:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-03 03:53:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-05-03 03:53:15,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:15,932 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:53:15,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 21.3125) internal successors, (341), 16 states have internal predecessors, (341), 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) [2024-05-03 03:53:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:53:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:15,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:53:15,934 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:53:16,206 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1941 states. [2024-05-03 03:53:16,207 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:53:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:53:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:53:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:53:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:53:16,208 INFO L78 Accepts]: Start accepts. Automaton has currently 1942 states, but on-demand construction may add more states Word has length 1906 [2024-05-03 03:53:16,215 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:53:16,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-03 03:53:16,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-05-03 03:53:16,429 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:53:16,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:53:16,429 INFO L85 PathProgramCache]: Analyzing trace with hash 938219103, now seen corresponding path program 5 times [2024-05-03 03:53:16,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:53:16,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371902014] [2024-05-03 03:53:16,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:53:16,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:53:16,726 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:53:16,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243577968] [2024-05-03 03:53:16,727 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-03 03:53:16,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:53:16,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:53:16,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-05-03 03:53:16,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process Received shutdown request... [2024-05-03 04:07:49,680 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 04:07:49,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2024-05-03 04:07:49,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 [2024-05-03 04:07:50,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-05-03 04:07:50,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2024-05-03 04:07:50,892 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2024-05-03 04:07:50,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2024-05-03 04:07:50,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2024-05-03 04:07:50,933 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-03 04:07:50,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-03 04:07:50,933 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1907 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2024-05-03 04:07:50,940 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2024-05-03 04:07:50,941 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was TIMEOUT (1/3) [2024-05-03 04:07:50,943 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-03 04:07:50,943 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-03 04:07:50,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 04:07:50 BasicIcfg [2024-05-03 04:07:50,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-03 04:07:50,950 INFO L158 Benchmark]: Toolchain (without parser) took 883116.34ms. Allocated memory was 299.9MB in the beginning and 404.8MB in the end (delta: 104.9MB). Free memory was 225.2MB in the beginning and 237.6MB in the end (delta: -12.4MB). Peak memory consumption was 92.8MB. Max. memory is 8.0GB. [2024-05-03 04:07:50,950 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 04:07:50,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 698.81ms. Allocated memory is still 299.9MB. Free memory was 224.9MB in the beginning and 244.1MB in the end (delta: -19.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-05-03 04:07:50,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.82ms. Allocated memory is still 299.9MB. Free memory was 244.1MB in the beginning and 241.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 04:07:50,951 INFO L158 Benchmark]: Boogie Preprocessor took 48.04ms. Allocated memory is still 299.9MB. Free memory was 241.5MB in the beginning and 238.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-05-03 04:07:50,951 INFO L158 Benchmark]: RCFGBuilder took 520.71ms. Allocated memory is still 299.9MB. Free memory was 238.9MB in the beginning and 214.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2024-05-03 04:07:50,952 INFO L158 Benchmark]: TraceAbstraction took 881770.48ms. Allocated memory was 299.9MB in the beginning and 404.8MB in the end (delta: 104.9MB). Free memory was 213.2MB in the beginning and 237.6MB in the end (delta: -24.4MB). Peak memory consumption was 81.5MB. Max. memory is 8.0GB. [2024-05-03 04:07:50,954 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 698.81ms. Allocated memory is still 299.9MB. Free memory was 224.9MB in the beginning and 244.1MB in the end (delta: -19.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.82ms. Allocated memory is still 299.9MB. Free memory was 244.1MB in the beginning and 241.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.04ms. Allocated memory is still 299.9MB. Free memory was 241.5MB in the beginning and 238.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 520.71ms. Allocated memory is still 299.9MB. Free memory was 238.9MB in the beginning and 214.8MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 881770.48ms. Allocated memory was 299.9MB in the beginning and 404.8MB in the end (delta: 104.9MB). Free memory was 213.2MB in the beginning and 237.6MB in the end (delta: -24.4MB). Peak memory consumption was 81.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 30, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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: -1, Independence queries for same thread: 30 - StatisticsResult: Reduction benchmarks 61.4ms Time before loop, 25.5ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 95, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 19.3ms Time before loop, 37.4ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 184, Duplicate States: 38, Protected Variables: 1 - StatisticsResult: Reduction benchmarks 22.1ms Time before loop, 20.5ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 257, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 89.1ms Time before loop, 21.0ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 335, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 160.1ms Time before loop, 23.2ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 625, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 17.7ms Time before loop, 63.4ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 4, Reduction States: 860, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 20.5ms Time before loop, 252.0ms Time in loop, 0.3s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 8, Reduction States: 1941, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Visitor Statistics States: 87, Transitions: 89, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 174, Transitions: 180, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 244, Transitions: 252, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 320, Transitions: 332, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 608, Transitions: 628, Traversal time: 0.2s - StatisticsResult: Visitor Statistics States: 839, Transitions: 842, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 1907, Transitions: 1914, Traversal time: 0.3s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 14, RedundantProofs: 6, ProvenStates: 30, Times there's more than one choice: 21, Avg number of choices: 2.5 - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1907 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 3 procedures, 256 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 881.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1479 NumberOfCodeBlocks, 1170 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2859 ConstructedInterpolants, 0 QuantifiedInterpolants, 7727 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4484 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 6159/17149 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