/usr/bin/java -Xmx7000000000 -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/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONLY_ONE_CEGAR --traceabstraction.number.of.independence.relations.to.use.for.por 2 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL '--traceabstraction.abstraction.used.for.commutativity.in.por.#2' NONE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-08 13:28:55,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-08 13:28:55,583 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-08 13:28:55,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-08 13:28:55,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-08 13:28:55,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-08 13:28:55,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 13:28:55,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 13:28:55,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 13:28:55,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-08 13:28:55,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-08 13:28:55,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 13:28:55,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 13:28:55,619 INFO L153 SettingsManager]: * Use SBE=true [2023-09-08 13:28:55,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 13:28:55,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-08 13:28:55,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-08 13:28:55,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 13:28:55,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-08 13:28:55,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 13:28:55,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-08 13:28:55,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-08 13:28:55,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-08 13:28:55,621 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-08 13:28:55,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 13:28:55,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-08 13:28:55,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 13:28:55,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 13:28:55,622 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-08 13:28:55,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-08 13:28:55,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 13:28:55,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-08 13:28:55,623 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-08 13:28:55,624 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/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONLY_ONE_CEGAR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2023-09-08 13:28:55,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 13:28:55,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 13:28:55,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 13:28:55,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 13:28:55,848 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 13:28:55,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2023-09-08 13:28:56,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 13:28:57,066 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 13:28:57,066 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2023-09-08 13:28:57,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd7d11ca0/4af4ab9228b84cac8a2d71dd1b40585e/FLAGa516b1599 [2023-09-08 13:28:57,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd7d11ca0/4af4ab9228b84cac8a2d71dd1b40585e [2023-09-08 13:28:57,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 13:28:57,088 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 13:28:57,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 13:28:57,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 13:28:57,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 13:28:57,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,100 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfe7e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57, skipping insertion in model container [2023-09-08 13:28:57,100 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,119 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-08 13:28:57,232 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2023-09-08 13:28:57,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 13:28:57,246 INFO L202 MainTranslator]: Completed pre-run [2023-09-08 13:28:57,260 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2023-09-08 13:28:57,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 13:28:57,269 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 13:28:57,269 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-08 13:28:57,273 INFO L206 MainTranslator]: Completed translation [2023-09-08 13:28:57,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57 WrapperNode [2023-09-08 13:28:57,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 13:28:57,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 13:28:57,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 13:28:57,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 13:28:57,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,305 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 157 [2023-09-08 13:28:57,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 13:28:57,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 13:28:57,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 13:28:57,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 13:28:57,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 13:28:57,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 13:28:57,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 13:28:57,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 13:28:57,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (1/1) ... [2023-09-08 13:28:57,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-08 13:28:57,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:28:57,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-08 13:28:57,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-08 13:28:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 13:28:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 13:28:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 13:28:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-08 13:28:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-08 13:28:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-08 13:28:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-08 13:28:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-08 13:28:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-08 13:28:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-08 13:28:57,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 13:28:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-08 13:28:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-08 13:28:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-08 13:28:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 13:28:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 13:28:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 13:28:57,420 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-08 13:28:57,519 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 13:28:57,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 13:28:57,768 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 13:28:57,791 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 13:28:57,791 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-09-08 13:28:57,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:28:57 BoogieIcfgContainer [2023-09-08 13:28:57,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 13:28:57,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-08 13:28:57,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-08 13:28:57,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-08 13:28:57,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:28:57" (1/3) ... [2023-09-08 13:28:57,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2089fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:28:57, skipping insertion in model container [2023-09-08 13:28:57,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:28:57" (2/3) ... [2023-09-08 13:28:57,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2089fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:28:57, skipping insertion in model container [2023-09-08 13:28:57,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:28:57" (3/3) ... [2023-09-08 13:28:57,799 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2023-09-08 13:28:57,805 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-08 13:28:57,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-08 13:28:57,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-08 13:28:57,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-08 13:28:57,903 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-08 13:28:57,933 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 13:28:57,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-08 13:28:57,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:28:57,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-08 13:28:57,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-08 13:28:57,966 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 13:28:57,972 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-09-08 13:28:57,972 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-09-08 13:28:57,973 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-09-08 13:28:57,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-08 13:28:57,989 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;@78e2f4e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-08 13:28:57,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-09-08 13:28:58,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:28:58,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:28:58,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1514627023, now seen corresponding path program 1 times [2023-09-08 13:28:58,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:28:58,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166391291] [2023-09-08 13:28:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:28:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:28:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:28:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-09-08 13:28:59,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:28:59,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166391291] [2023-09-08 13:28:59,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166391291] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 13:28:59,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 13:28:59,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-08 13:28:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259462778] [2023-09-08 13:28:59,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 13:28:59,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-08 13:28:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 13:28:59,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-08 13:28:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-08 13:28:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:28:59,146 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 13:28:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 13:28:59,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:28:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:28:59,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-08 13:28:59,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:28:59,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:28:59,429 INFO L85 PathProgramCache]: Analyzing trace with hash 91262695, now seen corresponding path program 1 times [2023-09-08 13:28:59,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:28:59,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325340150] [2023-09-08 13:28:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:28:59,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:28:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:28:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-09-08 13:28:59,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:28:59,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325340150] [2023-09-08 13:28:59,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325340150] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-08 13:28:59,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-08 13:28:59,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-08 13:28:59,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735733057] [2023-09-08 13:28:59,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-08 13:28:59,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-08 13:28:59,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 13:28:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-08 13:28:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-08 13:28:59,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:28:59,873 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 13:28:59,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 13:28:59,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:28:59,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:00,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:00,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-08 13:29:00,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:29:00,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:29:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2106931975, now seen corresponding path program 1 times [2023-09-08 13:29:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:29:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294451747] [2023-09-08 13:29:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:29:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:29:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:29:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-09-08 13:29:00,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:29:00,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294451747] [2023-09-08 13:29:00,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294451747] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 13:29:00,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080318279] [2023-09-08 13:29:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:29:00,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:00,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:29:00,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 13:29:00,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-08 13:29:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:29:00,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 10 conjunts are in the unsatisfiable core [2023-09-08 13:29:00,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 13:29:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-09-08 13:29:01,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 13:29:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-09-08 13:29:01,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080318279] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 13:29:01,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 13:29:01,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2023-09-08 13:29:01,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76922220] [2023-09-08 13:29:01,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 13:29:01,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-09-08 13:29:01,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 13:29:01,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-09-08 13:29:01,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-09-08 13:29:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:01,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 13:29:01,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.75) internal successors, (258), 24 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 13:29:01,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:01,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:01,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:02,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-09-08 13:29:02,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-09-08 13:29:02,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:29:02,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:29:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash -204637785, now seen corresponding path program 2 times [2023-09-08 13:29:02,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:29:02,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071764036] [2023-09-08 13:29:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:29:02,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:29:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:29:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-09-08 13:29:02,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:29:02,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071764036] [2023-09-08 13:29:02,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071764036] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 13:29:02,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84194266] [2023-09-08 13:29:02,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-08 13:29:02,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:02,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:29:02,841 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 13:29:02,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-08 13:29:03,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-08 13:29:03,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-08 13:29:03,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 8 conjunts are in the unsatisfiable core [2023-09-08 13:29:03,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 13:29:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-09-08 13:29:03,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 13:29:03,336 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-09-08 13:29:03,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84194266] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 13:29:03,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 13:29:03,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2023-09-08 13:29:03,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476310698] [2023-09-08 13:29:03,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 13:29:03,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-08 13:29:03,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 13:29:03,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-08 13:29:03,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-09-08 13:29:03,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:03,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 13:29:03,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 21.157894736842106) internal successors, (402), 19 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 13:29:03,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:03,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:03,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:03,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-09-08 13:29:04,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-08 13:29:04,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:04,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:29:04,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:29:04,844 INFO L85 PathProgramCache]: Analyzing trace with hash -7198965, now seen corresponding path program 3 times [2023-09-08 13:29:04,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:29:04,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982637512] [2023-09-08 13:29:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:29:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:29:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:29:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-09-08 13:29:05,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:29:05,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982637512] [2023-09-08 13:29:05,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982637512] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 13:29:05,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558631381] [2023-09-08 13:29:05,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-08 13:29:05,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:05,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:29:05,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 13:29:05,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-08 13:29:05,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-09-08 13:29:05,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-08 13:29:05,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-08 13:29:05,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 13:29:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-09-08 13:29:05,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 13:29:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-09-08 13:29:06,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558631381] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 13:29:06,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 13:29:06,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2023-09-08 13:29:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175426414] [2023-09-08 13:29:06,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 13:29:06,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-09-08 13:29:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 13:29:06,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-09-08 13:29:06,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122 [2023-09-08 13:29:06,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:06,161 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 13:29:06,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.705882352941176) internal successors, (296), 34 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 13:29:06,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:06,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:06,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:06,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-09-08 13:29:06,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-09-08 13:29:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-08 13:29:07,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-08 13:29:07,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:07,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:29:07,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:29:07,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1413171997, now seen corresponding path program 4 times [2023-09-08 13:29:07,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:29:07,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154228237] [2023-09-08 13:29:07,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:29:07,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:29:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:29:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 35 proven. 32 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-09-08 13:29:08,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:29:08,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154228237] [2023-09-08 13:29:08,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154228237] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 13:29:08,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825560092] [2023-09-08 13:29:08,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-09-08 13:29:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:29:08,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 13:29:08,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-08 13:29:08,246 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-09-08 13:29:08,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-08 13:29:08,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-08 13:29:08,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 13:29:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 42 proven. 25 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-09-08 13:29:08,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 13:29:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 24 proven. 43 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-09-08 13:29:09,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825560092] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-08 13:29:09,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-08 13:29:09,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 34 [2023-09-08 13:29:09,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72453183] [2023-09-08 13:29:09,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-08 13:29:09,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-09-08 13:29:09,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-08 13:29:09,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-09-08 13:29:09,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=918, Unknown=0, NotChecked=0, Total=1122 [2023-09-08 13:29:09,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:09,163 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-08 13:29:09,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.264705882352942) internal successors, (349), 34 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-08 13:29:09,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:09,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:09,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:09,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-09-08 13:29:09,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-09-08 13:29:09,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-08 13:29:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-08 13:29:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-09-08 13:29:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-09-08 13:29:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-09-08 13:29:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-08 13:29:10,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-08 13:29:10,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:10,629 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-09-08 13:29:10,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-08 13:29:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash -483738439, now seen corresponding path program 5 times [2023-09-08 13:29:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-08 13:29:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352532492] [2023-09-08 13:29:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-08 13:29:10,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-08 13:29:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-08 13:29:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-09-08 13:29:19,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-08 13:29:19,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352532492] [2023-09-08 13:29:19,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352532492] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-08 13:29:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641322506] [2023-09-08 13:29:19,869 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-09-08 13:29:19,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-08 13:29:19,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 13:29:19,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-08 13:29:19,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-08 13:29:20,588 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-09-08 13:29:20,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-08 13:29:20,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 158 conjunts are in the unsatisfiable core [2023-09-08 13:29:20,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-08 13:29:21,014 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-08 13:29:22,283 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-09-08 13:29:22,283 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-09-08 13:29:22,969 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-09-08 13:29:22,969 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-09-08 13:29:24,782 INFO L322 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2023-09-08 13:29:24,783 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2023-09-08 13:29:26,128 INFO L322 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2023-09-08 13:29:26,128 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 84 treesize of output 93 [2023-09-08 13:29:28,565 INFO L322 Elim1Store]: treesize reduction 156, result has 24.3 percent of original size [2023-09-08 13:29:28,565 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 159 treesize of output 157 [2023-09-08 13:29:33,833 INFO L322 Elim1Store]: treesize reduction 570, result has 46.7 percent of original size [2023-09-08 13:29:33,834 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 23 select indices, 23 select index equivalence classes, 10 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 253 case distinctions, treesize of input 411 treesize of output 645 [2023-09-08 13:34:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-09-08 13:34:16,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-08 13:34:24,175 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int)) (let ((.cse12 (* c_thread2Thread1of1ForFork0_~i~1 4))) (let ((.cse14 (store (select |c_#memory_int| c_~C~0.base) (+ .cse12 ~C~0.offset) (+ (select (select |c_#memory_int| c_~A~0.base) (+ .cse12 c_~A~0.offset)) (select (select |c_#memory_int| c_~B~0.base) (+ .cse12 c_~B~0.offset)))))) (let ((.cse15 (store |c_#memory_int| c_~C~0.base .cse14))) (let ((.cse10 (select .cse15 c_~B~0.base))) (let ((.cse9 (store .cse14 (+ .cse12 ~C~0.offset 4) (+ (select (select .cse15 c_~A~0.base) (+ .cse12 c_~A~0.offset 4)) (select .cse10 (+ .cse12 4 c_~B~0.offset)))))) (let ((.cse13 (store |c_#memory_int| c_~C~0.base .cse9))) (let ((.cse11 (select .cse13 c_~B~0.base)) (.cse6 (select .cse13 c_~A~0.base))) (let ((.cse8 (store .cse9 (+ .cse12 ~C~0.offset 8) (+ (select .cse11 (+ .cse12 8 c_~B~0.offset)) (select .cse6 (+ .cse12 c_~A~0.offset 8))))) (.cse7 (* c_thread1Thread1of1ForFork2_~i~0 4))) (let ((.cse3 (select .cse11 (+ .cse7 4 c_~B~0.offset))) (.cse4 (select .cse10 (+ .cse7 c_~B~0.offset))) (.cse0 (select .cse9 ~C~0.offset)) (.cse1 (select .cse8 (+ ~C~0.offset 4))) (.cse2 (select .cse8 (+ ~C~0.offset 8))) (.cse5 (select .cse6 (+ c_~A~0.offset .cse7 4)))) (= (+ .cse0 .cse1 .cse2 (* (div (+ .cse3 c_~asum~0 .cse4 c_~bsum~0 .cse5) 4294967296) 4294967296) c_~csum~0) (+ .cse3 c_~asum~0 .cse4 c_~bsum~0 (* (div (+ .cse0 .cse1 .cse2 c_~csum~0) 4294967296) 4294967296) .cse5)))))))))))) is different from false [2023-09-08 13:34:26,228 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int)) (let ((.cse1 (select (select |c_#memory_int| c_~A~0.base) c_~A~0.offset)) (.cse4 (select (select |c_#memory_int| c_~B~0.base) c_~B~0.offset))) (let ((.cse14 (store (select |c_#memory_int| c_~C~0.base) ~C~0.offset (+ .cse1 .cse4)))) (let ((.cse15 (store |c_#memory_int| c_~C~0.base .cse14))) (let ((.cse11 (select .cse15 c_~B~0.base))) (let ((.cse2 (select .cse11 (+ 4 c_~B~0.offset))) (.cse6 (select (select .cse15 c_~A~0.base) (+ c_~A~0.offset 4)))) (let ((.cse13 (store |c_#memory_int| c_~C~0.base (store .cse14 (+ ~C~0.offset 4) (+ .cse2 .cse6))))) (let ((.cse10 (* c_thread1Thread1of1ForFork2_~i~0 4)) (.cse9 (select .cse13 c_~A~0.base)) (.cse12 (select .cse13 c_~B~0.base))) (let ((.cse3 (select .cse12 (+ 8 c_~B~0.offset))) (.cse5 (select .cse9 (+ c_~A~0.offset 8))) (.cse0 (select .cse12 (+ .cse10 4 c_~B~0.offset))) (.cse7 (select .cse11 (+ .cse10 c_~B~0.offset))) (.cse8 (select .cse9 (+ c_~A~0.offset .cse10 4)))) (= (+ c_~asum~0 c_~bsum~0 .cse0 (* (div (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 c_~csum~0) 4294967296) 4294967296) .cse7 .cse8) (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 c_~csum~0 (* (div (+ c_~asum~0 c_~bsum~0 .cse0 .cse7 .cse8) 4294967296) 4294967296)))))))))))) is different from false [2023-09-08 13:35:46,056 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int)) (let ((.cse13 (select |c_#memory_int| c_~A~0.base))) (let ((.cse1 (select .cse13 c_~A~0.offset)) (.cse4 (select (select |c_#memory_int| c_~B~0.base) c_~B~0.offset))) (let ((.cse16 (store (select |c_#memory_int| c_~C~0.base) ~C~0.offset (+ .cse1 .cse4)))) (let ((.cse17 (store |c_#memory_int| c_~C~0.base .cse16))) (let ((.cse11 (select .cse17 c_~B~0.base))) (let ((.cse2 (select .cse11 (+ 4 c_~B~0.offset))) (.cse6 (select (select .cse17 c_~A~0.base) (+ c_~A~0.offset 4)))) (let ((.cse15 (store |c_#memory_int| c_~C~0.base (store .cse16 (+ ~C~0.offset 4) (+ .cse2 .cse6))))) (let ((.cse10 (select .cse15 c_~A~0.base)) (.cse12 (* |c_thread1Thread1of1ForFork2_#t~post1| 4)) (.cse14 (select .cse15 c_~B~0.base))) (let ((.cse3 (select .cse14 (+ 8 c_~B~0.offset))) (.cse0 (select .cse14 (+ 8 .cse12 c_~B~0.offset))) (.cse7 (select .cse13 (+ c_~A~0.offset .cse12 4))) (.cse8 (select .cse10 (+ c_~A~0.offset 8 .cse12))) (.cse9 (select .cse11 (+ .cse12 4 c_~B~0.offset))) (.cse5 (select .cse10 (+ c_~A~0.offset 8)))) (= (+ .cse0 c_~asum~0 c_~bsum~0 (* (div (+ .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 c_~csum~0) 4294967296) 4294967296) .cse7 .cse8 .cse9) (+ .cse1 .cse2 .cse3 (* (div (+ .cse0 c_~asum~0 c_~bsum~0 .cse7 .cse8 .cse9) 4294967296) 4294967296) .cse4 .cse5 .cse6 c_~csum~0)))))))))))) is different from false [2023-09-08 13:36:43,650 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int) (~B~0.base Int)) (let ((.cse16 (select |c_#memory_int| ~B~0.base)) (.cse15 (select |c_#memory_int| c_~A~0.base))) (let ((.cse0 (select .cse15 c_~A~0.offset)) (.cse2 (select .cse16 c_~B~0.offset))) (let ((.cse18 (store (select |c_#memory_int| c_~C~0.base) ~C~0.offset (+ .cse0 .cse2)))) (let ((.cse19 (store |c_#memory_int| c_~C~0.base .cse18))) (let ((.cse14 (select .cse19 ~B~0.base))) (let ((.cse1 (select (select .cse19 c_~A~0.base) (+ c_~A~0.offset 4))) (.cse3 (select .cse14 (+ 4 c_~B~0.offset)))) (let ((.cse17 (store |c_#memory_int| c_~C~0.base (store .cse18 (+ ~C~0.offset 4) (+ .cse1 .cse3))))) (let ((.cse11 (select .cse17 c_~A~0.base)) (.cse13 (* c_thread1Thread1of1ForFork2_~i~0 4)) (.cse12 (select .cse17 ~B~0.base))) (let ((.cse4 (select .cse12 (+ 8 c_~B~0.offset))) (.cse6 (select .cse16 (+ .cse13 c_~B~0.offset))) (.cse7 (select .cse15 (+ c_~A~0.offset .cse13 4))) (.cse8 (select .cse11 (+ c_~A~0.offset .cse13 8))) (.cse9 (select .cse14 (+ .cse13 4 c_~B~0.offset))) (.cse10 (select .cse12 (+ .cse13 8 c_~B~0.offset))) (.cse5 (select .cse11 (+ c_~A~0.offset 8)))) (= (+ (* (div (+ .cse0 .cse1 .cse2 .cse3 .cse4 c_~csum~0 .cse5) 4294967296) 4294967296) c_~asum~0 .cse6 c_~bsum~0 .cse7 .cse8 .cse9 .cse10) (+ .cse0 .cse1 .cse2 .cse3 .cse4 (* 4294967296 (div (+ c_~asum~0 .cse6 c_~bsum~0 .cse7 .cse8 .cse9 .cse10) 4294967296)) c_~csum~0 .cse5)))))))))))) is different from false [2023-09-08 13:36:45,687 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C~0.offset Int) (~B~0.base Int)) (let ((.cse16 (select |c_#memory_int| ~B~0.base)) (.cse15 (select |c_#memory_int| c_~A~0.base))) (let ((.cse0 (select .cse15 c_~A~0.offset)) (.cse2 (select .cse16 c_~B~0.offset))) (let ((.cse18 (store (select |c_#memory_int| c_~C~0.base) ~C~0.offset (+ .cse0 .cse2)))) (let ((.cse19 (store |c_#memory_int| c_~C~0.base .cse18))) (let ((.cse14 (select .cse19 ~B~0.base))) (let ((.cse1 (select (select .cse19 c_~A~0.base) (+ c_~A~0.offset 4))) (.cse3 (select .cse14 (+ 4 c_~B~0.offset)))) (let ((.cse17 (store |c_#memory_int| c_~C~0.base (store .cse18 (+ ~C~0.offset 4) (+ .cse1 .cse3))))) (let ((.cse11 (select .cse17 c_~A~0.base)) (.cse13 (* c_thread1Thread1of1ForFork2_~i~0 4)) (.cse12 (select .cse17 ~B~0.base))) (let ((.cse4 (select .cse12 (+ 8 c_~B~0.offset))) (.cse6 (select .cse16 (+ .cse13 c_~B~0.offset))) (.cse7 (select .cse15 (+ c_~A~0.offset .cse13 4))) (.cse8 (select .cse11 (+ c_~A~0.offset .cse13 8))) (.cse9 (select .cse14 (+ .cse13 4 c_~B~0.offset))) (.cse10 (select .cse12 (+ .cse13 8 c_~B~0.offset))) (.cse5 (select .cse11 (+ c_~A~0.offset 8)))) (= (+ (* (div (+ .cse0 .cse1 .cse2 .cse3 .cse4 c_~csum~0 .cse5) 4294967296) 4294967296) c_~asum~0 .cse6 |c_thread1Thread1of1ForFork2_#t~mem2| c_~bsum~0 .cse7 .cse8 .cse9 .cse10) (+ .cse0 .cse1 .cse2 .cse3 .cse4 (* (div (+ c_~asum~0 .cse6 |c_thread1Thread1of1ForFork2_#t~mem2| c_~bsum~0 .cse7 .cse8 .cse9 .cse10) 4294967296) 4294967296) c_~csum~0 .cse5)))))))))))) is different from false [2023-09-08 13:37:01,233 WARN L234 SmtUtils]: Spent 15.26s on a formula simplification that was a NOOP. DAG size: 219 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-09-08 13:37:01,234 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-09-08 13:37:01,240 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 1132506 treesize of output 438900 [2023-09-08 13:40:12,770 WARN L234 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 28 DAG size of output: 1 (called from [L 729] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-09-08 13:43:14,284 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-08 13:43:14,284 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-08 13:43:14,328 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-09-08 13:43:15,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-09-08 13:43:15,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-08 13:43:15,528 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-09-08 13:43:15,545 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-09-08 13:43:15,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-08 13:43:15,545 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:282) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:729) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-09-08 13:43:15,548 INFO L158 Benchmark]: Toolchain (without parser) took 858460.76ms. Allocated memory was 164.6MB in the beginning and 1.1GB in the end (delta: 951.1MB). Free memory was 117.0MB in the beginning and 893.1MB in the end (delta: -776.0MB). Peak memory consumption was 695.6MB. Max. memory is 7.0GB. [2023-09-08 13:43:15,549 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 164.6MB. Free memory was 113.2MB in the beginning and 113.1MB in the end (delta: 143.9kB). There was no memory consumed. Max. memory is 7.0GB. [2023-09-08 13:43:15,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.72ms. Allocated memory is still 164.6MB. Free memory was 116.7MB in the beginning and 105.1MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. [2023-09-08 13:43:15,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 164.6MB. Free memory was 105.1MB in the beginning and 103.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-08 13:43:15,549 INFO L158 Benchmark]: Boogie Preprocessor took 30.84ms. Allocated memory is still 164.6MB. Free memory was 103.1MB in the beginning and 101.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. [2023-09-08 13:43:15,549 INFO L158 Benchmark]: RCFGBuilder took 456.51ms. Allocated memory is still 164.6MB. Free memory was 101.3MB in the beginning and 78.9MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 7.0GB. [2023-09-08 13:43:15,549 INFO L158 Benchmark]: TraceAbstraction took 857753.10ms. Allocated memory was 164.6MB in the beginning and 1.1GB in the end (delta: 951.1MB). Free memory was 78.3MB in the beginning and 893.1MB in the end (delta: -814.8MB). Peak memory consumption was 656.8MB. Max. memory is 7.0GB. [2023-09-08 13:43:15,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2023-09-08 13:43:15,553 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 164.6MB. Free memory was 113.2MB in the beginning and 113.1MB in the end (delta: 143.9kB). There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 185.72ms. Allocated memory is still 164.6MB. Free memory was 116.7MB in the beginning and 105.1MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 164.6MB. Free memory was 105.1MB in the beginning and 103.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * Boogie Preprocessor took 30.84ms. Allocated memory is still 164.6MB. Free memory was 103.1MB in the beginning and 101.4MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 7.0GB. * RCFGBuilder took 456.51ms. Allocated memory is still 164.6MB. Free memory was 101.3MB in the beginning and 78.9MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 7.0GB. * TraceAbstraction took 857753.10ms. Allocated memory was 164.6MB in the beginning and 1.1GB in the end (delta: 951.1MB). Free memory was 78.3MB in the beginning and 893.1MB in the end (delta: -814.8MB). Peak memory consumption was 656.8MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown