/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_93-evilcollapse_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-a4a1cd3-m [2024-05-30 15:24:06,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-30 15:24:06,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/DynamicStratifiedAbstractions.epf [2024-05-30 15:24:06,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-30 15:24:06,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-30 15:24:06,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-05-30 15:24:06,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-30 15:24:06,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-30 15:24:06,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-30 15:24:06,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-30 15:24:06,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-30 15:24:06,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-30 15:24:06,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-30 15:24:06,358 INFO L153 SettingsManager]: * Use SBE=true [2024-05-30 15:24:06,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-30 15:24:06,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-30 15:24:06,359 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-30 15:24:06,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-30 15:24:06,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-30 15:24:06,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-30 15:24:06,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-30 15:24:06,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-30 15:24:06,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-30 15:24:06,361 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-30 15:24:06,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-30 15:24:06,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-30 15:24:06,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-30 15:24:06,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-30 15:24:06,361 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-05-30 15:24:06,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-30 15:24:06,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 15:24:06,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-30 15:24:06,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-30 15:24:06,362 INFO L153 SettingsManager]: * Abstraction for dynamic stratified reduction=VARIABLES_GLOBAL [2024-05-30 15:24:06,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-30 15:24:06,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-30 15:24:06,373 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=DYNAMIC_ABSTRACTIONS [2024-05-30 15:24:06,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2024-05-30 15:24:06,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-30 15:24:06,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-05-30 15:24:06,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-30 15:24:06,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2024-05-30 15:24:06,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-30 15:24:06,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-30 15:24:06,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-30 15:24:06,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-30 15:24:06,567 INFO L274 PluginConnector]: CDTParser initialized [2024-05-30 15:24:06,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-05-30 15:24:07,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-30 15:24:07,840 INFO L384 CDTParser]: Found 1 translation units. [2024-05-30 15:24:07,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-05-30 15:24:07,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/944b89e2b/fd105b50517c4607bf36bf9e64f169dd/FLAGf3fa6927b [2024-05-30 15:24:07,865 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/944b89e2b/fd105b50517c4607bf36bf9e64f169dd [2024-05-30 15:24:07,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-30 15:24:07,868 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-30 15:24:07,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-30 15:24:07,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-30 15:24:07,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-30 15:24:07,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 03:24:07" (1/1) ... [2024-05-30 15:24:07,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec6b2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:07, skipping insertion in model container [2024-05-30 15:24:07,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.05 03:24:07" (1/1) ... [2024-05-30 15:24:07,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-30 15:24:08,282 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_93-evilcollapse_racefree.i[47038,47051] [2024-05-30 15:24:08,298 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,298 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,299 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,300 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 15:24:08,357 INFO L202 MainTranslator]: Completed pre-run [2024-05-30 15:24:08,389 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_93-evilcollapse_racefree.i[47038,47051] [2024-05-30 15:24:08,391 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,392 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,394 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,395 WARN L1574 CHandler]: Possible shadowing of function new [2024-05-30 15:24:08,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-05-30 15:24:08,494 INFO L206 MainTranslator]: Completed translation [2024-05-30 15:24:08,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08 WrapperNode [2024-05-30 15:24:08,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-30 15:24:08,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-30 15:24:08,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-30 15:24:08,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-30 15:24:08,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,563 INFO L138 Inliner]: procedures = 280, calls = 55, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 237 [2024-05-30 15:24:08,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-30 15:24:08,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-30 15:24:08,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-30 15:24:08,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-30 15:24:08,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-30 15:24:08,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-30 15:24:08,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-30 15:24:08,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-30 15:24:08,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (1/1) ... [2024-05-30 15:24:08,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-05-30 15:24:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:08,648 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) [2024-05-30 15:24:08,661 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 [2024-05-30 15:24:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-30 15:24:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-30 15:24:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-30 15:24:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-05-30 15:24:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-30 15:24:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-30 15:24:08,689 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-30 15:24:08,807 INFO L241 CfgBuilder]: Building ICFG [2024-05-30 15:24:08,809 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-30 15:24:09,049 INFO L282 CfgBuilder]: Performing block encoding [2024-05-30 15:24:09,069 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-30 15:24:09,069 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2024-05-30 15:24:09,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 03:24:09 BoogieIcfgContainer [2024-05-30 15:24:09,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-30 15:24:09,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-30 15:24:09,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-30 15:24:09,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-30 15:24:09,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.05 03:24:07" (1/3) ... [2024-05-30 15:24:09,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670e574c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 03:24:09, skipping insertion in model container [2024-05-30 15:24:09,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.05 03:24:08" (2/3) ... [2024-05-30 15:24:09,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670e574c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.05 03:24:09, skipping insertion in model container [2024-05-30 15:24:09,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.05 03:24:09" (3/3) ... [2024-05-30 15:24:09,075 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-05-30 15:24:09,082 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-05-30 15:24:09,089 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-30 15:24:09,089 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-05-30 15:24:09,089 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-30 15:24:09,183 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-30 15:24:09,224 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:24:09,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-05-30 15:24:09,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:09,226 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) [2024-05-30 15:24:09,227 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 [2024-05-30 15:24:09,265 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-05-30 15:24:09,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2024-05-30 15:24:09,276 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;@3e789454, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-30 15:24:09,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-05-30 15:24:09,282 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:09,314 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:09,314 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:24:09,314 INFO L395 cStratifiedReduction]: Actual level: [] [2024-05-30 15:24:09,322 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 128 states. [2024-05-30 15:24:09,322 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:24:09,324 INFO L78 Accepts]: Start accepts. Automaton has currently 130 states, but on-demand construction may add more states Word has length 69 [2024-05-30 15:24:09,326 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:09,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:09,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash -364577924, now seen corresponding path program 1 times [2024-05-30 15:24:09,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:09,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598814087] [2024-05-30 15:24:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:24:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-30 15:24:09,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:24:09,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598814087] [2024-05-30 15:24:09,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598814087] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:24:09,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:24:09,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 15:24:09,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105431169] [2024-05-30 15:24:09,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:24:09,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 15:24:09,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:24:09,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 15:24:09,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 15:24:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:09,797 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:24:09,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-05-30 15:24:09,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:09,799 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:09,838 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:09,838 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:24:09,838 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-30 15:24:09,842 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:09,842 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~i~0#1] [2024-05-30 15:24:09,842 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-30 15:24:09,849 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 218 states. [2024-05-30 15:24:09,849 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-30 15:24:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:09,850 INFO L78 Accepts]: Start accepts. Automaton has currently 181 states, but on-demand construction may add more states Word has length 83 [2024-05-30 15:24:09,850 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:09,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-30 15:24:09,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:09,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:09,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1009976421, now seen corresponding path program 1 times [2024-05-30 15:24:09,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:09,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946071583] [2024-05-30 15:24:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:09,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:24:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-30 15:24:09,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:24:09,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946071583] [2024-05-30 15:24:09,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946071583] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-30 15:24:09,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-30 15:24:09,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-30 15:24:09,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188433084] [2024-05-30 15:24:09,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-30 15:24:09,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-30 15:24:09,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:24:09,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-30 15:24:09,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-30 15:24:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:09,951 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:24:09,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-30 15:24:09,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:09,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:09,953 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:09,985 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:09,985 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:24:09,985 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-30 15:24:09,987 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:09,987 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~i~0#1] [2024-05-30 15:24:09,987 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~i~0#1] [2024-05-30 15:24:09,993 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 291 states. [2024-05-30 15:24:09,993 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-30 15:24:09,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:09,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:09,994 INFO L78 Accepts]: Start accepts. Automaton has currently 254 states, but on-demand construction may add more states Word has length 119 [2024-05-30 15:24:09,994 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:09,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-30 15:24:09,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:09,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:09,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1069538074, now seen corresponding path program 1 times [2024-05-30 15:24:09,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:09,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954929014] [2024-05-30 15:24:09,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:09,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:10,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-30 15:24:10,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967370764] [2024-05-30 15:24:10,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:10,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:24:10,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:10,074 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) [2024-05-30 15:24:10,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-05-30 15:24:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-30 15:24:10,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-30 15:24:10,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:24:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-30 15:24:10,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:24:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-30 15:24:10,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:24:10,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954929014] [2024-05-30 15:24:10,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-30 15:24:10,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967370764] [2024-05-30 15:24:10,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967370764] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:24:10,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-30 15:24:10,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-05-30 15:24:10,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961505437] [2024-05-30 15:24:10,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-30 15:24:10,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 15:24:10,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:24:10,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 15:24:10,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-05-30 15:24:10,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:10,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:24:10,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.125) internal successors, (153), 8 states have internal predecessors, (153), 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) [2024-05-30 15:24:10,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:10,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:10,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:10,393 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:10,468 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:10,469 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:24:10,469 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1] [2024-05-30 15:24:10,472 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:10,472 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~j~1#1] [2024-05-30 15:24:10,472 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1] [2024-05-30 15:24:10,482 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 369 states. [2024-05-30 15:24:10,483 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-30 15:24:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:10,483 INFO L78 Accepts]: Start accepts. Automaton has currently 332 states, but on-demand construction may add more states Word has length 191 [2024-05-30 15:24:10,486 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:10,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-05-30 15:24:10,693 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 [2024-05-30 15:24:10,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:10,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash 323264408, now seen corresponding path program 2 times [2024-05-30 15:24:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842361631] [2024-05-30 15:24:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:10,743 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-30 15:24:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003825964] [2024-05-30 15:24:10,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-05-30 15:24:10,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:24:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:10,745 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) [2024-05-30 15:24:10,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-05-30 15:24:10,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-05-30 15:24:10,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:24:10,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-30 15:24:10,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:24:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-30 15:24:11,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:24:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 111 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-05-30 15:24:11,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:24:11,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842361631] [2024-05-30 15:24:11,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-30 15:24:11,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003825964] [2024-05-30 15:24:11,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003825964] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:24:11,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-30 15:24:11,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-05-30 15:24:11,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857002326] [2024-05-30 15:24:11,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-30 15:24:11,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-30 15:24:11,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:24:11,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-30 15:24:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-05-30 15:24:11,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:11,318 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:24:11,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 18.5625) internal successors, (297), 16 states have internal predecessors, (297), 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) [2024-05-30 15:24:11,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:11,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:11,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:11,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:11,318 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:11,454 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:11,455 INFO L394 cStratifiedReduction]: Guessed abstraction level: [] [2024-05-30 15:24:11,455 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post29#1] [2024-05-30 15:24:11,457 INFO L393 cStratifiedReduction]: Backtracking a loop entry edge [2024-05-30 15:24:11,457 INFO L394 cStratifiedReduction]: Guessed abstraction level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post29#1] [2024-05-30 15:24:11,457 INFO L395 cStratifiedReduction]: Actual level: [ULTIMATE.start_main_~j~1#1, ULTIMATE.start_main_#t~post29#1] [2024-05-30 15:24:11,466 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 659 states. [2024-05-30 15:24:11,466 INFO L212 cStratifiedReduction]: Copied states 38 times. [2024-05-30 15:24:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:11,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-30 15:24:11,467 INFO L78 Accepts]: Start accepts. Automaton has currently 622 states, but on-demand construction may add more states Word has length 335 [2024-05-30 15:24:11,469 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:11,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-05-30 15:24:11,674 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 [2024-05-30 15:24:11,675 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:11,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1273807212, now seen corresponding path program 3 times [2024-05-30 15:24:11,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142936472] [2024-05-30 15:24:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:11,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-30 15:24:11,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39697245] [2024-05-30 15:24:11,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-05-30 15:24:11,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:24:11,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:11,735 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) [2024-05-30 15:24:11,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-05-30 15:24:11,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-05-30 15:24:11,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:24:11,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2024-05-30 15:24:11,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:24:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-05-30 15:24:12,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:24:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-05-30 15:24:12,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:24:12,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142936472] [2024-05-30 15:24:12,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-30 15:24:12,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39697245] [2024-05-30 15:24:12,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39697245] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:24:12,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-30 15:24:12,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-05-30 15:24:12,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449667188] [2024-05-30 15:24:12,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-30 15:24:12,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-05-30 15:24:12,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:24:12,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-05-30 15:24:12,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-05-30 15:24:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:12,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:24:12,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 8 states have internal predecessors, (168), 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) [2024-05-30 15:24:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:12,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-30 15:24:12,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:12,407 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:12,468 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 894 states. [2024-05-30 15:24:12,469 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:24:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-30 15:24:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:12,469 INFO L78 Accepts]: Start accepts. Automaton has currently 895 states, but on-demand construction may add more states Word has length 869 [2024-05-30 15:24:12,472 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:12,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-05-30 15:24:12,689 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 [2024-05-30 15:24:12,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:12,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:12,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1817781588, now seen corresponding path program 4 times [2024-05-30 15:24:12,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:12,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414015611] [2024-05-30 15:24:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:12,827 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-30 15:24:12,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37068109] [2024-05-30 15:24:12,828 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-05-30 15:24:12,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:24:12,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:12,837 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) [2024-05-30 15:24:12,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-05-30 15:24:13,545 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-05-30 15:24:13,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-05-30 15:24:13,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 3394 conjuncts, 8 conjunts are in the unsatisfiable core [2024-05-30 15:24:13,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-05-30 15:24:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7676 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 2294 trivial. 0 not checked. [2024-05-30 15:24:14,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-05-30 15:24:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 7676 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 2294 trivial. 0 not checked. [2024-05-30 15:24:14,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-30 15:24:14,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414015611] [2024-05-30 15:24:14,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-05-30 15:24:14,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37068109] [2024-05-30 15:24:14,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37068109] provided 0 perfect and 2 imperfect interpolant sequences [2024-05-30 15:24:14,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-05-30 15:24:14,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-05-30 15:24:14,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114397019] [2024-05-30 15:24:14,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-05-30 15:24:14,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-05-30 15:24:14,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-30 15:24:14,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-05-30 15:24:14,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-05-30 15:24:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:14,961 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-05-30 15:24:14,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 23.25) internal successors, (372), 16 states have internal predecessors, (372), 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) [2024-05-30 15:24:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-05-30 15:24:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-05-30 15:24:14,961 INFO L199 cStratifiedReduction]: Start building reduction automaton [2024-05-30 15:24:15,185 INFO L211 cStratifiedReduction]: Finished building reduction automaton with 1975 states. [2024-05-30 15:24:15,185 INFO L212 cStratifiedReduction]: Copied states 0 times. [2024-05-30 15:24:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-30 15:24:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-30 15:24:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-05-30 15:24:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-05-30 15:24:15,185 INFO L78 Accepts]: Start accepts. Automaton has currently 1976 states, but on-demand construction may add more states Word has length 1937 [2024-05-30 15:24:15,192 INFO L84 Accepts]: Finished accepts. word is accepted. [2024-05-30 15:24:15,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-05-30 15:24:15,403 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 [2024-05-30 15:24:15,403 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-30 15:24:15,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-30 15:24:15,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1774731988, now seen corresponding path program 5 times [2024-05-30 15:24:15,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-30 15:24:15,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499240526] [2024-05-30 15:24:15,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-30 15:24:15,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-30 15:24:15,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2024-05-30 15:24:15,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999079675] [2024-05-30 15:24:15,631 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-05-30 15:24:15,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-05-30 15:24:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-05-30 15:24:15,632 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) [2024-05-30 15:24:15,655 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... [2024-05-30 15:38:53,958 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 [2024-05-30 15:38:53,977 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 [2024-05-30 15:38:53,990 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 [2024-05-30 15:38:54,967 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 [2024-05-30 15:38:55,005 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 [2024-05-30 15:38:55,178 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2024-05-30 15:38:55,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2024-05-30 15:38:55,215 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2024-05-30 15:38:55,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-05-30 15:38:55,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-30 15:38:55,218 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1938 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2024-05-30 15:38:55,234 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2024-05-30 15:38:55,235 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was TIMEOUT (1/3) [2024-05-30 15:38:55,249 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-30 15:38:55,249 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-30 15:38:55,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.05 03:38:55 BasicIcfg [2024-05-30 15:38:55,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-30 15:38:55,252 INFO L158 Benchmark]: Toolchain (without parser) took 887384.44ms. Allocated memory was 292.6MB in the beginning and 509.6MB in the end (delta: 217.1MB). Free memory was 218.4MB in the beginning and 327.9MB in the end (delta: -109.5MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. [2024-05-30 15:38:55,252 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 292.6MB. Free memory is still 258.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-05-30 15:38:55,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.79ms. Allocated memory is still 292.6MB. Free memory was 218.4MB in the beginning and 248.0MB in the end (delta: -29.6MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. [2024-05-30 15:38:55,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.22ms. Allocated memory is still 292.6MB. Free memory was 248.0MB in the beginning and 244.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-05-30 15:38:55,253 INFO L158 Benchmark]: Boogie Preprocessor took 39.44ms. Allocated memory is still 292.6MB. Free memory was 244.9MB in the beginning and 242.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-05-30 15:38:55,253 INFO L158 Benchmark]: RCFGBuilder took 464.75ms. Allocated memory is still 292.6MB. Free memory was 242.2MB in the beginning and 214.4MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2024-05-30 15:38:55,253 INFO L158 Benchmark]: TraceAbstraction took 886180.56ms. Allocated memory was 292.6MB in the beginning and 509.6MB in the end (delta: 217.1MB). Free memory was 213.4MB in the beginning and 327.9MB in the end (delta: -114.5MB). Peak memory consumption was 102.5MB. Max. memory is 8.0GB. [2024-05-30 15:38:55,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 292.6MB. Free memory is still 258.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 628.79ms. Allocated memory is still 292.6MB. Free memory was 218.4MB in the beginning and 248.0MB in the end (delta: -29.6MB). Peak memory consumption was 31.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.22ms. Allocated memory is still 292.6MB. Free memory was 248.0MB in the beginning and 244.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.44ms. Allocated memory is still 292.6MB. Free memory was 244.9MB in the beginning and 242.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 464.75ms. Allocated memory is still 292.6MB. Free memory was 242.2MB in the beginning and 214.4MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 886180.56ms. Allocated memory was 292.6MB in the beginning and 509.6MB in the end (delta: 217.1MB). Free memory was 213.4MB in the beginning and 327.9MB in the end (delta: -114.5MB). Peak memory consumption was 102.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 38, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 38, dependent conditional: 38, 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: 38 - StatisticsResult: Reduction benchmarks 15.6ms Time before loop, 24.0ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 2, Reduction States: 128, Duplicate States: 0, Protected Variables: 0 - StatisticsResult: Reduction benchmarks 17.9ms Time before loop, 32.4ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 218, Duplicate States: 38, Protected Variables: 1 - StatisticsResult: Reduction benchmarks 24.4ms Time before loop, 15.3ms Time in loop, 0.0s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 291, Duplicate States: 38, Protected Variables: 1 - StatisticsResult: Reduction benchmarks 64.6ms Time before loop, 24.1ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 369, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 127.6ms Time before loop, 20.0ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 1, overall guesses: 4, Reduction States: 659, Duplicate States: 38, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 14.0ms Time before loop, 47.4ms Time in loop, 0.1s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 4, Reduction States: 894, Duplicate States: 0, Protected Variables: 2 - StatisticsResult: Reduction benchmarks 14.1ms Time before loop, 208.8ms Time in loop, 0.2s Time in total, Has Loop: 1, wrong guesses: 0, overall guesses: 8, Reduction States: 1975, Duplicate States: 0, Protected Variables: 2 - StatisticsResult: Visitor Statistics States: 119, Transitions: 121, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 206, Transitions: 213, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 276, Transitions: 285, Traversal time: 0.0s - StatisticsResult: Visitor Statistics States: 352, Transitions: 365, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 640, Transitions: 661, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 871, Transitions: 875, Traversal time: 0.1s - StatisticsResult: Visitor Statistics States: 1939, Transitions: 1947, Traversal time: 0.2s - StatisticsResult: Proof manager benchmarks IrresponsibleProofs: 12, RedundantProofs: 5, ProvenStates: 36, Times there's more than one choice: 26, Avg number of choices: 2.6666666666666665 - TimeoutResultAtElement [Line: 1082]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1938 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, 312 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 886.0s, 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, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1666 NumberOfCodeBlocks, 1355 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3170 ConstructedInterpolants, 0 QuantifiedInterpolants, 8038 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4696 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