/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 04:09:15,551 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 04:09:15,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 04:09:15,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 04:09:15,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 04:09:15,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 04:09:15,643 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 04:09:15,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 04:09:15,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 04:09:15,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 04:09:15,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 04:09:15,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 04:09:15,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 04:09:15,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 04:09:15,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 04:09:15,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 04:09:15,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 04:09:15,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 04:09:15,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 04:09:15,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 04:09:15,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 04:09:15,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 04:09:15,648 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 04:09:15,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-04 04:09:15,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 04:09:15,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 04:09:15,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 04:09:15,858 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 04:09:15,858 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 04:09:15,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-05-04 04:09:15,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2d9718d9/5db1143dac1a450fbb99b63ada1a1894/FLAGb4c6b485e [2023-05-04 04:09:16,322 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 04:09:16,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-05-04 04:09:16,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2d9718d9/5db1143dac1a450fbb99b63ada1a1894/FLAGb4c6b485e [2023-05-04 04:09:16,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2d9718d9/5db1143dac1a450fbb99b63ada1a1894 [2023-05-04 04:09:16,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 04:09:16,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 04:09:16,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 04:09:16,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 04:09:16,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 04:09:16,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d04f6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16, skipping insertion in model container [2023-05-04 04:09:16,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 04:09:16,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 04:09:16,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-05-04 04:09:16,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-05-04 04:09:16,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 04:09:16,658 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 04:09:16,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-05-04 04:09:16,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-05-04 04:09:16,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 04:09:16,731 INFO L208 MainTranslator]: Completed translation [2023-05-04 04:09:16,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16 WrapperNode [2023-05-04 04:09:16,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 04:09:16,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 04:09:16,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 04:09:16,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 04:09:16,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,783 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2023-05-04 04:09:16,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 04:09:16,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 04:09:16,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 04:09:16,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 04:09:16,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 04:09:16,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 04:09:16,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 04:09:16,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 04:09:16,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (1/1) ... [2023-05-04 04:09:16,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 04:09:16,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:16,842 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) [2023-05-04 04:09:16,850 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 [2023-05-04 04:09:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 04:09:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-05-04 04:09:16,871 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-05-04 04:09:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-05-04 04:09:16,874 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-05-04 04:09:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 04:09:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-04 04:09:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 04:09:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 04:09:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 04:09:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-05-04 04:09:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 04:09:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 04:09:16,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 04:09:16,876 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 04:09:16,994 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 04:09:16,995 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 04:09:17,185 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 04:09:17,191 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 04:09:17,191 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 04:09:17,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:09:17 BoogieIcfgContainer [2023-05-04 04:09:17,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 04:09:17,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 04:09:17,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 04:09:17,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 04:09:17,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 04:09:16" (1/3) ... [2023-05-04 04:09:17,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe06899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:09:17, skipping insertion in model container [2023-05-04 04:09:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:09:16" (2/3) ... [2023-05-04 04:09:17,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe06899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:09:17, skipping insertion in model container [2023-05-04 04:09:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:09:17" (3/3) ... [2023-05-04 04:09:17,199 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2023-05-04 04:09:17,205 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 04:09:17,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 04:09:17,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-05-04 04:09:17,212 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 04:09:17,278 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 04:09:17,313 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:09:17,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 04:09:17,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:17,315 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) [2023-05-04 04:09:17,318 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 [2023-05-04 04:09:17,341 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 04:09:17,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2023-05-04 04:09:17,367 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;@6dde928c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:09:17,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 04:09:18,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:18,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:18,694 INFO L85 PathProgramCache]: Analyzing trace with hash -164658767, now seen corresponding path program 1 times [2023-05-04 04:09:18,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:18,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58870519] [2023-05-04 04:09:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:18,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:18,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:18,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58870519] [2023-05-04 04:09:18,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-05-04 04:09:18,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593849249] [2023-05-04 04:09:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:18,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:18,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:18,903 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) [2023-05-04 04:09:18,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 04:09:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:19,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjunts are in the unsatisfiable core [2023-05-04 04:09:19,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:09:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:19,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 04:09:19,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593849249] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:19,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:19,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 04:09:19,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604481744] [2023-05-04 04:09:19,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:19,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 04:09:19,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 04:09:19,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 04:09:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:19,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 04:09:19,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-05-04 04:09:19,319 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,SelfDestructingSolverStorable0 [2023-05-04 04:09:19,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:19,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1188650930, now seen corresponding path program 1 times [2023-05-04 04:09:19,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:19,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447870174] [2023-05-04 04:09:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:19,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:09:19,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118489631] [2023-05-04 04:09:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:19,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:19,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:19,367 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) [2023-05-04 04:09:19,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 04:09:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:19,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 04:09:19,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:09:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:19,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 04:09:19,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:19,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447870174] [2023-05-04 04:09:19,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 04:09:19,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118489631] [2023-05-04 04:09:19,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118489631] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:19,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:19,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 04:09:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760371942] [2023-05-04 04:09:19,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:19,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 04:09:19,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:19,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 04:09:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 04:09:19,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,563 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:19,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 04:09:19,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:19,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-04 04:09:19,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:19,889 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1029675283, now seen corresponding path program 1 times [2023-05-04 04:09:19,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:19,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140626341] [2023-05-04 04:09:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:19,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:09:19,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741847543] [2023-05-04 04:09:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:19,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:19,927 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) [2023-05-04 04:09:19,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 04:09:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:20,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 04:09:20,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:09:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:20,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 04:09:20,235 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:20,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140626341] [2023-05-04 04:09:20,235 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 04:09:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741847543] [2023-05-04 04:09:20,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741847543] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 04:09:20,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-05-04 04:09:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-05-04 04:09:20,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392781257] [2023-05-04 04:09:20,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-05-04 04:09:20,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-04 04:09:20,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:20,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-04 04:09:20,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-05-04 04:09:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:20,237 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:20,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 8 states have internal predecessors, (167), 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) [2023-05-04 04:09:20,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:20,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:20,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 04:09:20,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 04:09:20,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:20,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:20,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:20,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2127450893, now seen corresponding path program 2 times [2023-05-04 04:09:20,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:20,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652625586] [2023-05-04 04:09:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:20,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:20,582 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:09:20,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042059894] [2023-05-04 04:09:20,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 04:09:20,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:20,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:20,597 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) [2023-05-04 04:09:20,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 04:09:20,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-05-04 04:09:20,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 04:09:20,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 04:09:20,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:09:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-05-04 04:09:20,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 04:09:20,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:20,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652625586] [2023-05-04 04:09:20,816 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 04:09:20,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042059894] [2023-05-04 04:09:20,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042059894] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:20,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:20,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 04:09:20,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331245121] [2023-05-04 04:09:20,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:20,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 04:09:20,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:20,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 04:09:20,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 04:09:20,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:20,817 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:20,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2023-05-04 04:09:20,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:20,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:20,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 04:09:20,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 04:09:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 04:09:23,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 04:09:24,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 04:09:24,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:24,201 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-05-04 04:09:24,202 INFO L307 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE (1/3) [2023-05-04 04:09:24,205 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:09:24,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 04:09:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:24,208 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 04:09:24,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-05-04 04:09:24,211 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 04:09:24,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 04:09:24,216 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;@6dde928c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:09:24,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-05-04 04:09:26,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-05-04 04:09:26,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-05-04 04:09:26,463 INFO L444 BasicCegarLoop]: Path program histogram: [] [2023-05-04 04:09:26,463 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2023-05-04 04:09:26,465 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:09:26,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 04:09:26,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:26,467 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 04:09:26,471 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 04:09:26,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-05-04 04:09:26,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork1 ======== [2023-05-04 04:09:26,474 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;@6dde928c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:09:26,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 04:09:27,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash 439883194, now seen corresponding path program 1 times [2023-05-04 04:09:27,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:27,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747824176] [2023-05-04 04:09:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:27,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-04 04:09:27,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:27,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747824176] [2023-05-04 04:09:27,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747824176] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:27,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:27,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 04:09:27,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038767223] [2023-05-04 04:09:27,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:27,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 04:09:27,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:27,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 04:09:27,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 04:09:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:27,854 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:27,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2023-05-04 04:09:27,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:27,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 04:09:27,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:27,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:27,866 INFO L85 PathProgramCache]: Analyzing trace with hash -414067310, now seen corresponding path program 1 times [2023-05-04 04:09:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:27,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653127888] [2023-05-04 04:09:27,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:27,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 04:09:28,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:28,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653127888] [2023-05-04 04:09:28,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653127888] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:28,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:28,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 04:09:28,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549932201] [2023-05-04 04:09:28,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:28,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 04:09:28,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:28,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 04:09:28,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 04:09:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,016 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:28,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2023-05-04 04:09:28,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 04:09:28,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:28,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:28,035 INFO L85 PathProgramCache]: Analyzing trace with hash -977662188, now seen corresponding path program 1 times [2023-05-04 04:09:28,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:28,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766773683] [2023-05-04 04:09:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:28,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:28,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:28,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766773683] [2023-05-04 04:09:28,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766773683] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:28,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:28,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 04:09:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738216211] [2023-05-04 04:09:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:28,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 04:09:28,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 04:09:28,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 04:09:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,139 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:28,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-05-04 04:09:28,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-05-04 04:09:28,150 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:28,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:28,151 INFO L85 PathProgramCache]: Analyzing trace with hash 809898415, now seen corresponding path program 1 times [2023-05-04 04:09:28,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:28,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964610447] [2023-05-04 04:09:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:28,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:28,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:28,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964610447] [2023-05-04 04:09:28,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964610447] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:28,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:28,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 04:09:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898199009] [2023-05-04 04:09:28,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:28,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 04:09:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:28,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 04:09:28,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 04:09:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,274 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:28,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2023-05-04 04:09:28,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 04:09:28,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:28,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:28,285 INFO L85 PathProgramCache]: Analyzing trace with hash -154818663, now seen corresponding path program 1 times [2023-05-04 04:09:28,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:28,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110186678] [2023-05-04 04:09:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:28,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:09:28,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:28,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110186678] [2023-05-04 04:09:28,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110186678] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:28,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:28,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 04:09:28,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824198199] [2023-05-04 04:09:28,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:28,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 04:09:28,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:28,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 04:09:28,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-05-04 04:09:28,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,561 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:28,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 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) [2023-05-04 04:09:28,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:09:28,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-05-04 04:09:28,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash -954037247, now seen corresponding path program 1 times [2023-05-04 04:09:28,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:28,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228032755] [2023-05-04 04:09:28,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:28,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:28,665 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:09:28,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201289293] [2023-05-04 04:09:28,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:28,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:28,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:28,682 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 04:09:28,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 04:09:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:28,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 04:09:28,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:09:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 04:09:28,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 04:09:28,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:28,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228032755] [2023-05-04 04:09:28,986 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 04:09:28,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201289293] [2023-05-04 04:09:28,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201289293] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:09:28,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:09:28,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 04:09:28,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845079969] [2023-05-04 04:09:28,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:09:28,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 04:09:28,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:28,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 04:09:28,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 04:09:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:28,990 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:28,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 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) [2023-05-04 04:09:28,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:28,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:09:28,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:09:29,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:29,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 04:09:29,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-04 04:09:29,225 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:09:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:09:29,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1734479459, now seen corresponding path program 1 times [2023-05-04 04:09:29,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:09:29,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665084295] [2023-05-04 04:09:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:29,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:09:29,245 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:09:29,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891221399] [2023-05-04 04:09:29,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:09:29,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:09:29,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:09:29,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 04:09:29,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 04:09:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:09:29,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 21 conjunts are in the unsatisfiable core [2023-05-04 04:09:29,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:09:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 04:09:30,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 04:09:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 04:09:40,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:09:40,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665084295] [2023-05-04 04:09:40,158 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 04:09:40,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891221399] [2023-05-04 04:09:40,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891221399] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 04:09:40,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-05-04 04:09:40,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2023-05-04 04:09:40,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002671397] [2023-05-04 04:09:40,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-05-04 04:09:40,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-05-04 04:09:40,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:09:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-05-04 04:09:40,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2023-05-04 04:09:40,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:40,160 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:09:40,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 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) [2023-05-04 04:09:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:40,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:40,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:40,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:09:40,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:09:40,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:09:56,734 WARN L233 SmtUtils]: Spent 15.04s on a formula simplification. DAG size of input: 48 DAG size of output: 46 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:10:14,347 WARN L233 SmtUtils]: Spent 15.52s on a formula simplification. DAG size of input: 51 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:10:31,582 WARN L233 SmtUtils]: Spent 15.37s on a formula simplification. DAG size of input: 53 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:10:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:10:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:44,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 04:10:44,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 04:10:44,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:10:44,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:10:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:10:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1800061734, now seen corresponding path program 1 times [2023-05-04 04:10:44,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:10:44,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531187501] [2023-05-04 04:10:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:10:44,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:10:44,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:10:44,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252995005] [2023-05-04 04:10:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:10:44,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:10:44,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:10:44,970 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 04:10:44,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-04 04:10:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:10:45,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 04:10:45,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:10:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2023-05-04 04:10:45,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 04:10:45,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:10:45,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531187501] [2023-05-04 04:10:45,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-05-04 04:10:45,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252995005] [2023-05-04 04:10:45,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252995005] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:10:45,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:10:45,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 04:10:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054133372] [2023-05-04 04:10:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:10:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 04:10:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:10:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 04:10:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 04:10:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:10:45,183 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:10:45,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2023-05-04 04:10:45,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:10:45,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 04:10:45,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:10:45,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 04:10:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 04:10:45,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-04 04:10:45,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-05-04 04:10:45,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:10:45,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:10:45,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1739768228, now seen corresponding path program 1 times [2023-05-04 04:10:45,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:10:45,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977166371] [2023-05-04 04:10:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:10:45,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:10:45,477 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-05-04 04:10:45,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223173366] [2023-05-04 04:10:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:10:45,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 04:10:45,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:10:45,479 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 04:10:45,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-04 04:10:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:10:46,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 127 conjunts are in the unsatisfiable core [2023-05-04 04:10:46,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 04:10:46,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 7 treesize of output 6 [2023-05-04 04:10:46,189 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-05-04 04:10:46,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 04:10:46,210 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 04:10:46,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2023-05-04 04:10:46,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 04:10:46,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-05-04 04:10:46,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2023-05-04 04:10:47,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2023-05-04 04:10:50,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 80 [2023-05-04 04:10:52,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 36 [2023-05-04 04:10:52,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2023-05-04 04:10:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 04:10:53,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 04:12:45,217 WARN L233 SmtUtils]: Spent 1.39m on a formula simplification. DAG size of input: 265 DAG size of output: 168 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:13:55,237 WARN L233 SmtUtils]: Spent 13.08s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:14:19,027 WARN L233 SmtUtils]: Spent 13.24s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:14:58,055 WARN L233 SmtUtils]: Spent 12.47s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:15:33,615 WARN L233 SmtUtils]: Spent 15.17s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:15:59,752 WARN L233 SmtUtils]: Spent 10.82s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:16:28,575 WARN L233 SmtUtils]: Spent 19.06s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:17:02,548 WARN L233 SmtUtils]: Spent 16.42s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:17:34,921 WARN L233 SmtUtils]: Spent 20.86s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:18:27,109 WARN L233 SmtUtils]: Spent 38.32s on a formula simplification. DAG size of input: 179 DAG size of output: 175 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:19:55,257 WARN L233 SmtUtils]: Spent 16.94s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:20:24,782 WARN L233 SmtUtils]: Spent 17.60s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:22:54,122 WARN L233 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 176 DAG size of output: 147 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 04:23:20,557 WARN L233 SmtUtils]: Spent 9.92s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-05-04 04:23:51,828 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 [2023-05-04 04:23:51,828 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 04:23:51,828 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 04:23:51,828 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 04:23:51,828 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 [2023-05-04 04:23:52,048 WARN L249 SmtUtils]: Removed 2 from assertion stack [2023-05-04 04:23:52,049 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 04:23:52,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 04:23:52,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-05-04 04:23:52,250 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 260 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 1ms.. [2023-05-04 04:23:52,251 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-05-04 04:23:52,251 INFO L307 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork1 was TIMEOUT (3/3) [2023-05-04 04:23:52,252 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 04:23:52,252 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 04:23:52,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 04:23:52 BasicIcfg [2023-05-04 04:23:52,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 04:23:52,254 INFO L158 Benchmark]: Toolchain (without parser) took 875906.12ms. Allocated memory was 191.9MB in the beginning and 463.5MB in the end (delta: 271.6MB). Free memory was 134.1MB in the beginning and 299.4MB in the end (delta: -165.3MB). Peak memory consumption was 271.5MB. Max. memory is 8.0GB. [2023-05-04 04:23:52,254 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 191.9MB. Free memory was 152.1MB in the beginning and 152.0MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 04:23:52,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.02ms. Allocated memory was 191.9MB in the beginning and 235.9MB in the end (delta: 44.0MB). Free memory was 134.0MB in the beginning and 198.5MB in the end (delta: -64.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2023-05-04 04:23:52,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.26ms. Allocated memory is still 235.9MB. Free memory was 198.5MB in the beginning and 195.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 04:23:52,255 INFO L158 Benchmark]: Boogie Preprocessor took 28.31ms. Allocated memory is still 235.9MB. Free memory was 195.9MB in the beginning and 194.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 04:23:52,255 INFO L158 Benchmark]: RCFGBuilder took 379.46ms. Allocated memory is still 235.9MB. Free memory was 194.3MB in the beginning and 175.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-05-04 04:23:52,255 INFO L158 Benchmark]: TraceAbstraction took 875059.68ms. Allocated memory was 235.9MB in the beginning and 463.5MB in the end (delta: 227.5MB). Free memory was 174.9MB in the beginning and 299.4MB in the end (delta: -124.5MB). Peak memory consumption was 269.3MB. Max. memory is 8.0GB. [2023-05-04 04:23:52,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 191.9MB. Free memory was 152.1MB in the beginning and 152.0MB in the end (delta: 136.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 382.02ms. Allocated memory was 191.9MB in the beginning and 235.9MB in the end (delta: 44.0MB). Free memory was 134.0MB in the beginning and 198.5MB in the end (delta: -64.5MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.26ms. Allocated memory is still 235.9MB. Free memory was 198.5MB in the beginning and 195.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.31ms. Allocated memory is still 235.9MB. Free memory was 195.9MB in the beginning and 194.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 379.46ms. Allocated memory is still 235.9MB. Free memory was 194.3MB in the beginning and 175.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 875059.68ms. Allocated memory was 235.9MB in the beginning and 463.5MB in the end (delta: 227.5MB). Free memory was 174.9MB in the beginning and 299.4MB in the end (delta: -124.5MB). Peak memory consumption was 269.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 45659, independent: 42785, independent conditional: 36394, independent unconditional: 6391, dependent: 2871, dependent conditional: 2850, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43132, independent: 42785, independent conditional: 36394, independent unconditional: 6391, dependent: 344, dependent conditional: 323, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 43132, independent: 42785, independent conditional: 36394, independent unconditional: 6391, dependent: 344, dependent conditional: 323, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43730, independent: 42785, independent conditional: 0, independent unconditional: 42785, dependent: 941, dependent conditional: 597, dependent unconditional: 344, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43730, independent: 42785, independent conditional: 0, independent unconditional: 42785, dependent: 941, dependent conditional: 179, dependent unconditional: 762, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43730, independent: 42785, independent conditional: 0, independent unconditional: 42785, dependent: 941, dependent conditional: 179, dependent unconditional: 762, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4256, independent: 4223, independent conditional: 0, independent unconditional: 4223, dependent: 30, dependent conditional: 7, dependent unconditional: 23, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4256, independent: 4214, independent conditional: 0, independent unconditional: 4214, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 42, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 30, dependent conditional: 7, dependent unconditional: 23, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 30, dependent conditional: 7, dependent unconditional: 23, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3446, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 112, dependent conditional: 21, dependent unconditional: 91, unknown: 3276, unknown conditional: 1076, unknown unconditional: 2199] , Protected Queries: 0 ], Cache Queries: [ total: 43730, independent: 38562, independent conditional: 0, independent unconditional: 38562, dependent: 911, dependent conditional: 172, dependent unconditional: 739, unknown: 4257, unknown conditional: 8, unknown unconditional: 4249] , Statistics on independence cache: Total cache size (in pairs): 4253, Positive cache size: 4223, Positive conditional cache size: 0, Positive unconditional cache size: 4223, Negative cache size: 30, Negative conditional cache size: 7, Negative unconditional cache size: 23, Unknown cache size: 3, Unknown conditional cache size: 1, Unknown unconditional cache size: 2, Eliminated conditions: 418, Maximal queried relation: 3, Independence queries for same thread: 2527 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.6s, Number of persistent set computation: 4879, Number of trivial persistent sets: 4512, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6414, independent: 6391, independent conditional: 0, independent unconditional: 6391, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 45659, independent: 42785, independent conditional: 36394, independent unconditional: 6391, dependent: 2871, dependent conditional: 2850, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43132, independent: 42785, independent conditional: 36394, independent unconditional: 6391, dependent: 344, dependent conditional: 323, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 43132, independent: 42785, independent conditional: 36394, independent unconditional: 6391, dependent: 344, dependent conditional: 323, dependent unconditional: 21, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43730, independent: 42785, independent conditional: 0, independent unconditional: 42785, dependent: 941, dependent conditional: 597, dependent unconditional: 344, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 43730, independent: 42785, independent conditional: 0, independent unconditional: 42785, dependent: 941, dependent conditional: 179, dependent unconditional: 762, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 43730, independent: 42785, independent conditional: 0, independent unconditional: 42785, dependent: 941, dependent conditional: 179, dependent unconditional: 762, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4256, independent: 4223, independent conditional: 0, independent unconditional: 4223, dependent: 30, dependent conditional: 7, dependent unconditional: 23, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4256, independent: 4214, independent conditional: 0, independent unconditional: 4214, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 42, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 30, dependent conditional: 7, dependent unconditional: 23, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 42, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 30, dependent conditional: 7, dependent unconditional: 23, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3446, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 112, dependent conditional: 21, dependent unconditional: 91, unknown: 3276, unknown conditional: 1076, unknown unconditional: 2199] , Protected Queries: 0 ], Cache Queries: [ total: 43730, independent: 38562, independent conditional: 0, independent unconditional: 38562, dependent: 911, dependent conditional: 172, dependent unconditional: 739, unknown: 4257, unknown conditional: 8, unknown unconditional: 4249] , Statistics on independence cache: Total cache size (in pairs): 4253, Positive cache size: 4223, Positive conditional cache size: 0, Positive unconditional cache size: 4223, Negative cache size: 30, Negative conditional cache size: 7, Negative unconditional cache size: 23, Unknown cache size: 3, Unknown conditional cache size: 1, Unknown unconditional cache size: 2, Eliminated conditions: 418, Maximal queried relation: 3, Independence queries for same thread: 2527 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2407, independent: 2392, independent conditional: 66, independent unconditional: 2326, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 66, independent unconditional: 2326, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 66, independent unconditional: 2326, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2245, independent: 2234, independent conditional: 0, independent unconditional: 2234, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2245, independent: 2231, independent conditional: 0, independent unconditional: 2231, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2229, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 2115, unknown conditional: 0, unknown unconditional: 2115] , Protected Queries: 0 ], Cache Queries: [ total: 2404, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2246, unknown conditional: 0, unknown unconditional: 2246] , Statistics on independence cache: Total cache size (in pairs): 2243, Positive cache size: 2234, Positive conditional cache size: 0, Positive unconditional cache size: 2234, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2.2s, Number of persistent set computation: 101, Number of trivial persistent sets: 94, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2337, independent: 2326, independent conditional: 0, independent unconditional: 2326, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2407, independent: 2392, independent conditional: 66, independent unconditional: 2326, dependent: 12, dependent conditional: 3, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 66, independent unconditional: 2326, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 66, independent unconditional: 2326, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2404, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2245, independent: 2234, independent conditional: 0, independent unconditional: 2234, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2245, independent: 2231, independent conditional: 0, independent unconditional: 2231, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2229, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 2115, unknown conditional: 0, unknown unconditional: 2115] , Protected Queries: 0 ], Cache Queries: [ total: 2404, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2246, unknown conditional: 0, unknown unconditional: 2246] , Statistics on independence cache: Total cache size (in pairs): 2243, Positive cache size: 2234, Positive conditional cache size: 0, Positive unconditional cache size: 2234, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9208, independent: 8505, independent conditional: 2941, independent unconditional: 5564, dependent: 702, dependent conditional: 681, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8541, independent: 8505, independent conditional: 2941, independent unconditional: 5564, dependent: 35, dependent conditional: 14, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8541, independent: 8505, independent conditional: 2941, independent unconditional: 5564, dependent: 35, dependent conditional: 14, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8601, independent: 8505, independent conditional: 6, independent unconditional: 8499, dependent: 95, dependent conditional: 54, dependent unconditional: 41, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8601, independent: 8505, independent conditional: 6, independent unconditional: 8499, dependent: 95, dependent conditional: 8, dependent unconditional: 87, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8601, independent: 8505, independent conditional: 6, independent unconditional: 8499, dependent: 95, dependent conditional: 8, dependent unconditional: 87, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3940, independent: 3916, independent conditional: 2, independent unconditional: 3914, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3940, independent: 3907, independent conditional: 0, independent unconditional: 3907, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 33, independent: 9, independent conditional: 2, independent unconditional: 7, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 33, independent: 9, independent conditional: 2, independent unconditional: 7, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1182, independent: 47, independent conditional: 2, independent unconditional: 45, dependent: 66, dependent conditional: 4, dependent unconditional: 62, unknown: 1069, unknown conditional: 0, unknown unconditional: 1069] , Protected Queries: 0 ], Cache Queries: [ total: 8601, independent: 4589, independent conditional: 4, independent unconditional: 4585, dependent: 72, dependent conditional: 6, dependent unconditional: 66, unknown: 3940, unknown conditional: 4, unknown unconditional: 3936] , Statistics on independence cache: Total cache size (in pairs): 3939, Positive cache size: 3916, Positive conditional cache size: 2, Positive unconditional cache size: 3914, Negative cache size: 23, Negative conditional cache size: 2, Negative unconditional cache size: 21, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 46, Maximal queried relation: 6, Independence queries for same thread: 667 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 1.2s, Number of persistent set computation: 400, Number of trivial persistent sets: 337, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5586, independent: 5564, independent conditional: 0, independent unconditional: 5564, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9208, independent: 8505, independent conditional: 2941, independent unconditional: 5564, dependent: 702, dependent conditional: 681, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8541, independent: 8505, independent conditional: 2941, independent unconditional: 5564, dependent: 35, dependent conditional: 14, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8541, independent: 8505, independent conditional: 2941, independent unconditional: 5564, dependent: 35, dependent conditional: 14, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8601, independent: 8505, independent conditional: 6, independent unconditional: 8499, dependent: 95, dependent conditional: 54, dependent unconditional: 41, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8601, independent: 8505, independent conditional: 6, independent unconditional: 8499, dependent: 95, dependent conditional: 8, dependent unconditional: 87, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8601, independent: 8505, independent conditional: 6, independent unconditional: 8499, dependent: 95, dependent conditional: 8, dependent unconditional: 87, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3940, independent: 3916, independent conditional: 2, independent unconditional: 3914, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3940, independent: 3907, independent conditional: 0, independent unconditional: 3907, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 33, independent: 9, independent conditional: 2, independent unconditional: 7, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 33, independent: 9, independent conditional: 2, independent unconditional: 7, dependent: 23, dependent conditional: 2, dependent unconditional: 21, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1182, independent: 47, independent conditional: 2, independent unconditional: 45, dependent: 66, dependent conditional: 4, dependent unconditional: 62, unknown: 1069, unknown conditional: 0, unknown unconditional: 1069] , Protected Queries: 0 ], Cache Queries: [ total: 8601, independent: 4589, independent conditional: 4, independent unconditional: 4585, dependent: 72, dependent conditional: 6, dependent unconditional: 66, unknown: 3940, unknown conditional: 4, unknown unconditional: 3936] , Statistics on independence cache: Total cache size (in pairs): 3939, Positive cache size: 3916, Positive conditional cache size: 2, Positive unconditional cache size: 3914, Negative cache size: 23, Negative conditional cache size: 2, Negative unconditional cache size: 21, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 46, Maximal queried relation: 6, Independence queries for same thread: 667 - PositiveResult [Line: 713]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - TimeoutResultAtElement [Line: 746]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 260 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 40 for 1ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 213 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 4.7s, 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: 18, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 572 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 600 ConstructedInterpolants, 1 QuantifiedInterpolants, 851 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1049 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 166/184 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 213 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 2.2s, 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: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 213 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 865.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 66.0s, 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: 45, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 1144 NumberOfCodeBlocks, 1144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1295 ConstructedInterpolants, 0 QuantifiedInterpolants, 7932 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1415 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 460/550 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