/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_92-evilcollapse_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-e23131f-m [2024-05-03 03:54:40,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-03 03:54:40,894 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-03 03:54:40,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-03 03:54:40,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-03 03:54:40,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-03 03:54:40,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-03 03:54:40,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-03 03:54:40,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-03 03:54:40,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-03 03:54:40,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-03 03:54:40,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-03 03:54:40,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-03 03:54:40,931 INFO L153 SettingsManager]: * Use SBE=true [2024-05-03 03:54:40,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-03 03:54:40,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-03 03:54:40,931 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-03 03:54:40,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-03 03:54:40,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-03 03:54:40,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-03 03:54:40,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-03 03:54:40,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-03 03:54:40,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-03 03:54:40,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-03 03:54:40,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-03 03:54:40,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-03 03:54:40,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-03 03:54:40,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-03 03:54:40,934 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-03 03:54:40,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-03 03:54:40,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 03:54:40,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-03 03:54:40,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-03 03:54:40,935 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-03 03:54:40,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-03 03:54:40,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-03 03:54:40,936 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-03 03:54:40,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-03 03:54:40,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-03 03:54:40,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-03 03:54:40,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-03 03:54:40,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-03 03:54:41,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-03 03:54:41,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-03 03:54:41,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-03 03:54:41,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-03 03:54:41,200 INFO L274 PluginConnector]: CDTParser initialized [2024-05-03 03:54:41,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-05-03 03:54:42,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-03 03:54:42,762 INFO L384 CDTParser]: Found 1 translation units. [2024-05-03 03:54:42,763 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-05-03 03:54:42,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a14f01f1f/575f5031548d441d8493bd592b985c71/FLAGbf36ebe1d [2024-05-03 03:54:42,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a14f01f1f/575f5031548d441d8493bd592b985c71 [2024-05-03 03:54:42,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-03 03:54:42,805 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-03 03:54:42,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-03 03:54:42,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-03 03:54:42,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-03 03:54:42,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 03:54:42" (1/1) ... [2024-05-03 03:54:42,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4793117a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:42, skipping insertion in model container [2024-05-03 03:54:42,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.05 03:54:42" (1/1) ... [2024-05-03 03:54:42,861 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-03 03:54:43,230 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_92-evilcollapse_racing.i[47038,47051] [2024-05-03 03:54:43,245 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,245 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,246 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,246 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 03:54:43,290 INFO L202 MainTranslator]: Completed pre-run [2024-05-03 03:54:43,317 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_92-evilcollapse_racing.i[47038,47051] [2024-05-03 03:54:43,332 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,333 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,333 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,333 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-03 03:54:43,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-03 03:54:43,384 INFO L206 MainTranslator]: Completed translation [2024-05-03 03:54:43,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43 WrapperNode [2024-05-03 03:54:43,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-03 03:54:43,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-03 03:54:43,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-03 03:54:43,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-03 03:54:43,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,435 INFO L138 Inliner]: procedures = 279, calls = 55, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 236 [2024-05-03 03:54:43,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-03 03:54:43,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-03 03:54:43,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-03 03:54:43,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-03 03:54:43,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-03 03:54:43,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-03 03:54:43,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-03 03:54:43,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-03 03:54:43,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (1/1) ... [2024-05-03 03:54:43,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-03 03:54:43,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:43,496 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 03:54:43,511 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 03:54:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-03 03:54:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-03 03:54:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-03 03:54:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-05-03 03:54:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-03 03:54:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-03 03:54:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-03 03:54:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-03 03:54:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-03 03:54:43,553 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 03:54:43,675 INFO L241 CfgBuilder]: Building ICFG [2024-05-03 03:54:43,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-03 03:54:44,021 INFO L282 CfgBuilder]: Performing block encoding [2024-05-03 03:54:44,069 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-03 03:54:44,070 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2024-05-03 03:54:44,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:54:44 BoogieIcfgContainer [2024-05-03 03:54:44,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-03 03:54:44,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-03 03:54:44,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-03 03:54:44,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-03 03:54:44,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.05 03:54:42" (1/3) ... [2024-05-03 03:54:44,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fd086e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:54:44, skipping insertion in model container [2024-05-03 03:54:44,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.05 03:54:43" (2/3) ... [2024-05-03 03:54:44,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fd086e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:54:44, skipping insertion in model container [2024-05-03 03:54:44,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:54:44" (3/3) ... [2024-05-03 03:54:44,077 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-05-03 03:54:44,084 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-03 03:54:44,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-03 03:54:44,093 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-03 03:54:44,093 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-03 03:54:44,144 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-03 03:54:44,181 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 03:54:44,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-03 03:54:44,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:44,184 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 03:54:44,186 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 03:54:44,227 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-03 03:54:44,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-03 03:54:44,242 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;@6622a34e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-03 03:54:44,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-03 03:54:44,248 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:44,294 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:44,294 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:54:44,294 INFO L370 cStratifiedReduction]: Actual level: [] [2024-05-03 03:54:44,304 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 150 states. [2024-05-03 03:54:44,305 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:54:44,308 INFO L78 Accepts]: Start accepts. Automaton has currently 152 states, but on-demand construction may add more states Word has length 92 [2024-05-03 03:54:44,310 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:44,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:44,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:44,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1893735485, now seen corresponding path program 1 times [2024-05-03 03:54:44,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:44,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539192185] [2024-05-03 03:54:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:54:44,732 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 03:54:44,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:54:44,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539192185] [2024-05-03 03:54:44,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539192185] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 03:54:44,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 03:54:44,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-03 03:54:44,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429246420] [2024-05-03 03:54:44,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 03:54:44,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-03 03:54:44,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:54:44,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-03 03:54:44,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-03 03:54:44,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:44,762 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:54:44,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 03:54:44,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:44,763 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:44,824 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:44,824 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:54:44,824 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:54:44,827 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:44,827 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:54:44,827 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:54:44,838 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 241 states. [2024-05-03 03:54:44,838 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:54:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:44,839 INFO L78 Accepts]: Start accepts. Automaton has currently 204 states, but on-demand construction may add more states Word has length 105 [2024-05-03 03:54:44,839 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:44,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-03 03:54:44,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:44,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:44,840 INFO L85 PathProgramCache]: Analyzing trace with hash -51689709, now seen corresponding path program 1 times [2024-05-03 03:54:44,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:44,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973313580] [2024-05-03 03:54:44,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:44,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:54:44,989 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 03:54:44,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:54:44,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973313580] [2024-05-03 03:54:44,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973313580] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-03 03:54:44,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-03 03:54:44,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-03 03:54:44,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703304015] [2024-05-03 03:54:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-03 03:54:44,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-03 03:54:44,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:54:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-03 03:54:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-03 03:54:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:44,992 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:54:44,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 03:54:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:44,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:44,993 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:45,014 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:45,015 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:54:45,016 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:54:45,018 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:45,019 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:54:45,019 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-03 03:54:45,027 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 314 states. [2024-05-03 03:54:45,027 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:54:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:45,028 INFO L78 Accepts]: Start accepts. Automaton has currently 277 states, but on-demand construction may add more states Word has length 141 [2024-05-03 03:54:45,029 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:45,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-03 03:54:45,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:45,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:45,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1197407083, now seen corresponding path program 1 times [2024-05-03 03:54:45,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:45,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935483997] [2024-05-03 03:54:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:45,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:54:45,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700944370] [2024-05-03 03:54:45,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:45,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:54:45,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:45,099 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 03:54:45,113 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 03:54:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-03 03:54:45,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-03 03:54:45,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:54:45,371 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 03:54:45,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:54:45,462 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 03:54:45,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:54:45,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935483997] [2024-05-03 03:54:45,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:54:45,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700944370] [2024-05-03 03:54:45,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700944370] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:54:45,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:54:45,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-05-03 03:54:45,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420830504] [2024-05-03 03:54:45,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:54:45,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-03 03:54:45,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:54:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-03 03:54:45,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-05-03 03:54:45,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:45,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:54:45,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 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 03:54:45,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:45,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:45,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:45,471 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:45,536 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:45,536 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:54:45,536 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1] [2024-05-03 03:54:45,538 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:45,538 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~j~1#1] [2024-05-03 03:54:45,539 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1] [2024-05-03 03:54:45,547 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 392 states. [2024-05-03 03:54:45,547 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:54:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:45,548 INFO L78 Accepts]: Start accepts. Automaton has currently 355 states, but on-demand construction may add more states Word has length 213 [2024-05-03 03:54:45,552 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:45,558 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 03:54:45,757 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 03:54:45,758 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:45,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1283568793, now seen corresponding path program 2 times [2024-05-03 03:54:45,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:45,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250939887] [2024-05-03 03:54:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:45,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:45,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:54:45,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688602237] [2024-05-03 03:54:45,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-03 03:54:45,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:54:45,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:45,810 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 03:54:45,834 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 03:54:46,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-03 03:54:46,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 03:54:46,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-03 03:54:46,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:54:46,244 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 03:54:46,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:54:46,400 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 03:54:46,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:54:46,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250939887] [2024-05-03 03:54:46,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:54:46,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688602237] [2024-05-03 03:54:46,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688602237] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:54:46,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:54:46,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-05-03 03:54:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915501997] [2024-05-03 03:54:46,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:54:46,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-03 03:54:46,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:54:46,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-03 03:54:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-05-03 03:54:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:46,403 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:54:46,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.9375) internal successors, (319), 16 states have internal predecessors, (319), 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 03:54:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:46,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:46,403 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:46,537 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:46,538 INFO L369 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-03 03:54:46,538 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post26#1] [2024-05-03 03:54:46,540 INFO L368 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-03 03:54:46,540 INFO L369 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post26#1] [2024-05-03 03:54:46,540 INFO L370 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post26#1] [2024-05-03 03:54:46,551 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 682 states. [2024-05-03 03:54:46,551 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-03 03:54:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:46,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:46,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:54:46,552 INFO L78 Accepts]: Start accepts. Automaton has currently 645 states, but on-demand construction may add more states Word has length 357 [2024-05-03 03:54:46,553 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:46,562 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 03:54:46,760 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 03:54:46,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:46,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:46,761 INFO L85 PathProgramCache]: Analyzing trace with hash 252045473, now seen corresponding path program 3 times [2024-05-03 03:54:46,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:46,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68220673] [2024-05-03 03:54:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:46,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:46,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:54:46,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168596645] [2024-05-03 03:54:46,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-03 03:54:46,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:54:46,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:46,816 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 03:54:46,842 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 03:54:47,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-05-03 03:54:47,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 03:54:47,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-03 03:54:47,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:54:47,337 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 03:54:47,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:54:47,584 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 03:54:47,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:54:47,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68220673] [2024-05-03 03:54:47,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:54:47,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168596645] [2024-05-03 03:54:47,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168596645] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:54:47,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:54:47,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-05-03 03:54:47,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536129490] [2024-05-03 03:54:47,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:54:47,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-03 03:54:47,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:54:47,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-03 03:54:47,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-05-03 03:54:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:47,587 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:54:47,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.75) internal successors, (190), 8 states have internal predecessors, (190), 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 03:54:47,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:47,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:47,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:47,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:54:47,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:47,588 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:47,663 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 917 states. [2024-05-03 03:54:47,664 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:54:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:54:47,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:47,664 INFO L78 Accepts]: Start accepts. Automaton has currently 918 states, but on-demand construction may add more states Word has length 891 [2024-05-03 03:54:47,668 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:47,692 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 03:54:47,874 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 03:54:47,874 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:47,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:47,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1579011775, now seen corresponding path program 4 times [2024-05-03 03:54:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:47,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362653526] [2024-05-03 03:54:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:47,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:47,995 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:54:47,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838007686] [2024-05-03 03:54:47,995 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-03 03:54:47,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:54:47,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:47,996 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 03:54:47,998 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 03:54:48,812 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-03 03:54:48,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-03 03:54:48,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-03 03:54:48,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-03 03:54:49,455 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 03:54:49,455 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-03 03:54:50,146 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 03:54:50,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-03 03:54:50,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362653526] [2024-05-03 03:54:50,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-03 03:54:50,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838007686] [2024-05-03 03:54:50,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838007686] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-03 03:54:50,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-03 03:54:50,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-05-03 03:54:50,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958573018] [2024-05-03 03:54:50,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-03 03:54:50,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-03 03:54:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-03 03:54:50,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-03 03:54:50,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-05-03 03:54:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:50,149 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-03 03:54:50,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 24.625) internal successors, (394), 16 states have internal predecessors, (394), 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 03:54:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:54:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:50,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-03 03:54:50,150 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-03 03:54:50,336 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1998 states. [2024-05-03 03:54:50,336 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-03 03:54:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-03 03:54:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:54:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-03 03:54:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-03 03:54:50,338 INFO L78 Accepts]: Start accepts. Automaton has currently 1999 states, but on-demand construction may add more states Word has length 1959 [2024-05-03 03:54:50,350 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-03 03:54:50,374 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 03:54:50,562 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 03:54:50,563 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-03 03:54:50,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-03 03:54:50,563 INFO L85 PathProgramCache]: Analyzing trace with hash 904534657, now seen corresponding path program 5 times [2024-05-03 03:54:50,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-03 03:54:50,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775220238] [2024-05-03 03:54:50,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-03 03:54:50,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-03 03:54:50,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-03 03:54:50,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620444632] [2024-05-03 03:54:50,825 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-03 03:54:50,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 03:54:50,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-03 03:54:50,826 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 03:54:50,837 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 04:09:27,352 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 04:09:27,352 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 04:09:27,380 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 04:09:28,360 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 04:09:28,390 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 04:09:28,557 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 04:09:28,590 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2024-05-03 04:09:28,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-03 04:09:28,596 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 04:09:28,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-03 04:09:28,597 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1960 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2024-05-03 04:09:28,603 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2024-05-03 04:09:28,604 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was TIMEOUT (1/3) [2024-05-03 04:09:28,606 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-03 04:09:28,606 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-03 04:09:28,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 04:09:28 BasicIcfg [2024-05-03 04:09:28,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-03 04:09:28,613 INFO L158 Benchmark]: Toolchain (without parser) took 885807.90ms. Allocated memory was 259.0MB in the beginning and 526.4MB in the end (delta: 267.4MB). Free memory was 186.7MB in the beginning and 436.9MB in the end (delta: -250.2MB). Peak memory consumption was 204.8MB. Max. memory is 8.0GB. [2024-05-03 04:09:28,613 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 259.0MB. Free memory is still 230.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-03 04:09:28,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.79ms. Allocated memory is still 259.0MB. Free memory was 186.7MB in the beginning and 154.6MB in the end (delta: 32.1MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2024-05-03 04:09:28,614 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 04:09:28,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.52ms. Allocated memory is still 259.0MB. Free memory was 154.6MB in the beginning and 151.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-05-03 04:09:28,616 INFO L158 Benchmark]: Boogie Preprocessor took 30.37ms. Allocated memory is still 259.0MB. Free memory was 151.5MB in the beginning and 148.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-03 04:09:28,616 INFO L158 Benchmark]: RCFGBuilder took 603.42ms. Allocated memory is still 259.0MB. Free memory was 148.9MB in the beginning and 210.0MB in the end (delta: -61.1MB). Peak memory consumption was 21.3MB. Max. memory is 8.0GB. [2024-05-03 04:09:28,617 INFO L158 Benchmark]: TraceAbstraction took 884540.90ms. Allocated memory was 259.0MB in the beginning and 526.4MB in the end (delta: 267.4MB). Free memory was 208.9MB in the beginning and 436.9MB in the end (delta: -228.0MB). Peak memory consumption was 225.5MB. Max. memory is 8.0GB. [2024-05-03 04:09:28,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 259.0MB. Free memory is still 230.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 577.79ms. Allocated memory is still 259.0MB. Free memory was 186.7MB in the beginning and 154.6MB in the end (delta: 32.1MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.52ms. Allocated memory is still 259.0MB. Free memory was 154.6MB in the beginning and 151.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.37ms. Allocated memory is still 259.0MB. Free memory was 151.5MB in the beginning and 148.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 603.42ms. Allocated memory is still 259.0MB. Free memory was 148.9MB in the beginning and 210.0MB in the end (delta: -61.1MB). Peak memory consumption was 21.3MB. Max. memory is 8.0GB. * TraceAbstraction took 884540.90ms. Allocated memory was 259.0MB in the beginning and 526.4MB in the end (delta: 267.4MB). Free memory was 208.9MB in the beginning and 436.9MB in the end (delta: -228.0MB). Peak memory consumption was 225.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 42, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 42, dependent conditional: 42, 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: 42 - StatisticsResult: Reduction benchmarks 26.4ms Time before loop, 29.6ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 150, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 29.6ms Time before loop, 45.3ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 241, Duplicate States: 38, Protected Variables: 1 - StatisticsResult: Reduction benchmarks 15.8ms Time before loop, 18.7ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 314, Duplicate States: 38, Protected Variables: 1 - StatisticsResult: Reduction benchmarks 57.8ms Time before loop, 18.3ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 392, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 125.9ms Time before loop, 21.7ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 682, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 15.6ms Time before loop, 59.6ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 4, Reduction States: 917, Duplicate States: 0, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 15.7ms Time before loop, 170.2ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 8, Reduction States: 1998, Duplicate States: 0, Protected Variables: 2 - StatisticsResult: Visitor Statistics States: 142, Transitions: 144, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 229, Transitions: 237, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 299, Transitions: 309, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 375, Transitions: 389, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 663, Transitions: 685, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 894, Transitions: 899, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 1962, Transitions: 1971, Traversal time: 0.2s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 12, RedundantProofs: 5, ProvenStates: 42, Times there's more than one choice: 31, Avg number of choices: 2.7857142857142856 - TimeoutResultAtElement [Line: 1072]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1960 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, 311 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 884.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.7s, 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, 2.7s InterpolantComputationTime, 1799 NumberOfCodeBlocks, 1488 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3391 ConstructedInterpolants, 0 QuantifiedInterpolants, 8259 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4916 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