/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.number.of.independence.relations.to.use.for.por 2 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL '--traceabstraction.abstraction.used.for.commutativity.in.por.#2' NONE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 12:33:55,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 12:33:55,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-01-26 12:33:55,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 12:33:55,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 12:33:55,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 12:33:55,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 12:33:55,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 12:33:55,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 12:33:55,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 12:33:55,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 12:33:55,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 12:33:55,874 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 12:33:55,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 12:33:55,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 12:33:55,875 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 12:33:55,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 12:33:55,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 12:33:55,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 12:33:55,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 12:33:55,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 12:33:55,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 12:33:55,877 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 12:33:55,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 12:33:55,878 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 12:33:55,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 12:33:55,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 12:33:55,878 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 12:33:55,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 12:33:55,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 12:33:55,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 12:33:55,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 12:33:55,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-01-26 12:33:55,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2024-01-26 12:33:56,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 12:33:56,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 12:33:56,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 12:33:56,113 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 12:33:56,113 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 12:33:56,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2024-01-26 12:33:57,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 12:33:57,580 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 12:33:57,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2024-01-26 12:33:57,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8ae32c4d1/b7f35e3633d9439ba50000a4da8fda57/FLAG9f8cbb6a9 [2024-01-26 12:33:57,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8ae32c4d1/b7f35e3633d9439ba50000a4da8fda57 [2024-01-26 12:33:57,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 12:33:57,615 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 12:33:57,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 12:33:57,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 12:33:57,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 12:33:57,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786fce2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57, skipping insertion in model container [2024-01-26 12:33:57,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,646 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 12:33:57,782 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2024-01-26 12:33:57,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 12:33:57,796 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 12:33:57,828 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2024-01-26 12:33:57,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 12:33:57,844 INFO L206 MainTranslator]: Completed translation [2024-01-26 12:33:57,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57 WrapperNode [2024-01-26 12:33:57,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 12:33:57,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 12:33:57,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 12:33:57,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 12:33:57,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,899 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 316 [2024-01-26 12:33:57,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 12:33:57,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 12:33:57,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 12:33:57,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 12:33:57,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 12:33:57,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 12:33:57,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 12:33:57,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 12:33:57,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (1/1) ... [2024-01-26 12:33:57,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 12:33:57,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:33:57,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-01-26 12:33:57,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-01-26 12:33:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 12:33:57,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 12:33:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 12:33:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 12:33:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 12:33:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 12:33:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 12:33:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 12:33:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 12:33:57,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 12:33:57,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 12:33:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 12:33:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 12:33:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 12:33:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 12:33:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-26 12:33:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 12:33:57,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 12:33:57,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 12:33:57,987 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 12:33:58,090 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 12:33:58,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 12:33:58,393 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 12:33:58,564 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 12:33:58,564 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-26 12:33:58,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 12:33:58 BoogieIcfgContainer [2024-01-26 12:33:58,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 12:33:58,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 12:33:58,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 12:33:58,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 12:33:58,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 12:33:57" (1/3) ... [2024-01-26 12:33:58,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e29faed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 12:33:58, skipping insertion in model container [2024-01-26 12:33:58,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:33:57" (2/3) ... [2024-01-26 12:33:58,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e29faed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 12:33:58, skipping insertion in model container [2024-01-26 12:33:58,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 12:33:58" (3/3) ... [2024-01-26 12:33:58,570 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2024-01-26 12:33:58,576 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 12:33:58,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 12:33:58,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 12:33:58,583 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 12:33:58,648 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-26 12:33:58,722 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 12:33:58,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 12:33:58,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:33:58,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-01-26 12:33:58,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-01-26 12:33:58,769 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 12:33:58,781 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2024-01-26 12:33:58,781 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2024-01-26 12:33:58,781 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2024-01-26 12:33:58,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 12:33:58,791 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=LoopHeads, 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;@4128ba32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 12:33:58,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-01-26 12:33:59,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:33:59,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:33:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1062389488, now seen corresponding path program 1 times [2024-01-26 12:33:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:33:59,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851051844] [2024-01-26 12:33:59,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:33:59,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:33:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:34:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 12:34:00,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:34:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851051844] [2024-01-26 12:34:00,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851051844] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 12:34:00,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 12:34:00,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 12:34:00,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537989020] [2024-01-26 12:34:00,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 12:34:00,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 12:34:00,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:34:00,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 12:34:00,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 12:34:00,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:00,113 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:34:00,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.0) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 12:34:00,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:00,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 12:34:00,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:34:00,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:34:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1552482409, now seen corresponding path program 1 times [2024-01-26 12:34:00,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:34:00,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617810637] [2024-01-26 12:34:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:34:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:34:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:34:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 12:34:00,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:34:00,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617810637] [2024-01-26 12:34:00,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617810637] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 12:34:00,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 12:34:00,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-26 12:34:00,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881303105] [2024-01-26 12:34:00,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 12:34:00,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-26 12:34:00,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:34:00,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-26 12:34:00,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-26 12:34:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:00,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:34:00,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 12:34:00,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:00,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:01,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 12:34:01,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 12:34:01,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:34:01,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:34:01,284 INFO L85 PathProgramCache]: Analyzing trace with hash -12411699, now seen corresponding path program 1 times [2024-01-26 12:34:01,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:34:01,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561066829] [2024-01-26 12:34:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:34:01,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:34:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:34:01,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-26 12:34:01,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:34:01,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561066829] [2024-01-26 12:34:01,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561066829] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 12:34:01,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 12:34:01,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-26 12:34:01,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007144505] [2024-01-26 12:34:01,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 12:34:01,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-26 12:34:01,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:34:01,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-26 12:34:01,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-26 12:34:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:01,476 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:34:01,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.666666666666664) internal successors, (196), 6 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 12:34:01,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:01,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-01-26 12:34:01,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:34:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 12:34:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 12:34:01,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 12:34:01,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:34:01,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:34:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash 182731518, now seen corresponding path program 1 times [2024-01-26 12:34:01,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:34:01,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955120472] [2024-01-26 12:34:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:34:01,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:34:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:34:05,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 12:34:05,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:34:05,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955120472] [2024-01-26 12:34:05,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955120472] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 12:34:05,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748636616] [2024-01-26 12:34:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:34:05,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 12:34:05,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:34:05,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-01-26 12:34:05,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-26 12:34:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:34:05,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 74 conjunts are in the unsatisfiable core [2024-01-26 12:34:05,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 12:34:08,715 INFO L378 Elim1Store]: Elim1 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 23 treesize of output 1 [2024-01-26 12:34:09,624 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 1 [2024-01-26 12:34:09,791 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 1 [2024-01-26 12:34:09,930 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 1 [2024-01-26 12:34:10,067 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 1 [2024-01-26 12:34:10,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:10,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 [2024-01-26 12:34:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 12:34:10,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 12:34:14,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:14,356 INFO L378 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 105 [2024-01-26 12:34:14,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:14,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 231404 treesize of output 223304 [2024-01-26 12:34:15,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:15,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 13932 treesize of output 10940 [2024-01-26 12:34:15,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:15,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 10860 treesize of output 10556 [2024-01-26 12:34:16,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:16,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 10476 treesize of output 9020 [2024-01-26 12:34:16,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:34:16,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 8940 treesize of output 8252 [2024-01-26 12:40:33,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-01-26 12:40:33,653 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-01-26 12:40:33,654 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-01-26 12:40:33,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-01-26 12:40:33,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 12:40:33,862 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:950) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2024-01-26 12:40:33,865 INFO L158 Benchmark]: Toolchain (without parser) took 396249.55ms. Allocated memory was 325.1MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 280.6MB in the beginning and 736.2MB in the end (delta: -455.6MB). Peak memory consumption was 759.2MB. Max. memory is 8.0GB. [2024-01-26 12:40:33,865 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 145.5MB in the beginning and 145.4MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 12:40:33,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.86ms. Allocated memory is still 325.1MB. Free memory was 280.6MB in the beginning and 267.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-01-26 12:40:33,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.66ms. Allocated memory is still 325.1MB. Free memory was 267.0MB in the beginning and 264.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-01-26 12:40:33,866 INFO L158 Benchmark]: Boogie Preprocessor took 24.53ms. Allocated memory is still 325.1MB. Free memory was 264.4MB in the beginning and 262.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 12:40:33,867 INFO L158 Benchmark]: RCFGBuilder took 639.77ms. Allocated memory is still 325.1MB. Free memory was 262.3MB in the beginning and 277.2MB in the end (delta: -14.9MB). Peak memory consumption was 43.8MB. Max. memory is 8.0GB. [2024-01-26 12:40:33,867 INFO L158 Benchmark]: TraceAbstraction took 395298.32ms. Allocated memory was 325.1MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 276.1MB in the beginning and 736.2MB in the end (delta: -460.1MB). Peak memory consumption was 753.1MB. Max. memory is 8.0GB. [2024-01-26 12:40:33,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 145.5MB in the beginning and 145.4MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 228.86ms. Allocated memory is still 325.1MB. Free memory was 280.6MB in the beginning and 267.5MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.66ms. Allocated memory is still 325.1MB. Free memory was 267.0MB in the beginning and 264.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.53ms. Allocated memory is still 325.1MB. Free memory was 264.4MB in the beginning and 262.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 639.77ms. Allocated memory is still 325.1MB. Free memory was 262.3MB in the beginning and 277.2MB in the end (delta: -14.9MB). Peak memory consumption was 43.8MB. Max. memory is 8.0GB. * TraceAbstraction took 395298.32ms. Allocated memory was 325.1MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 276.1MB in the beginning and 736.2MB in the end (delta: -460.1MB). Peak memory consumption was 753.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-01-26 12:40:33,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 Received shutdown request...