/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_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/triangular-longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 00:38:41,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 00:38:41,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 00:38:41,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-11-16 00:38:41,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 00:38:41,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 00:38:41,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 00:38:41,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 00:38:41,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 00:38:41,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 00:38:41,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 00:38:41,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 00:38:41,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 00:38:41,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 00:38:41,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 00:38:41,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 00:38:41,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-11-16 00:38:42,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 00:38:42,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 00:38:42,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 00:38:42,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2022-11-16 00:38:42,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 00:38:42,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 00:38:42,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 00:38:42,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 00:38:42,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 00:38:42,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 00:38:42,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 00:38:42,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 00:38:42,032 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 00:38:42,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 00:38:42,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 00:38:42,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 00:38:42,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 00:38:42,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 00:38:42,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 00:38:42,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 00:38:42,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 00:38:42,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 00:38:42,036 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 00:38:42,036 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 00:38:42,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 00:38:42,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 00:38:42,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 00:38:42,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 00:38:42,241 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 00:38:42,242 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 00:38:42,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longer-2.i [2022-11-16 00:38:42,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f72196cb/dfd80198b6ae49fea0f198b2ce3bbf62/FLAG779a59417 [2022-11-16 00:38:42,701 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 00:38:42,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-2.i [2022-11-16 00:38:42,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f72196cb/dfd80198b6ae49fea0f198b2ce3bbf62/FLAG779a59417 [2022-11-16 00:38:43,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f72196cb/dfd80198b6ae49fea0f198b2ce3bbf62 [2022-11-16 00:38:43,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 00:38:43,082 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 00:38:43,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 00:38:43,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 00:38:43,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 00:38:43,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55dfade9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43, skipping insertion in model container [2022-11-16 00:38:43,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 00:38:43,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 00:38:43,397 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-2.i[30963,30976] [2022-11-16 00:38:43,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 00:38:43,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 00:38:43,438 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-2.i[30963,30976] [2022-11-16 00:38:43,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 00:38:43,468 INFO L208 MainTranslator]: Completed translation [2022-11-16 00:38:43,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43 WrapperNode [2022-11-16 00:38:43,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 00:38:43,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 00:38:43,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 00:38:43,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 00:38:43,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,509 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-11-16 00:38:43,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 00:38:43,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 00:38:43,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 00:38:43,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 00:38:43,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 00:38:43,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 00:38:43,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 00:38:43,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 00:38:43,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (1/1) ... [2022-11-16 00:38:43,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 00:38:43,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:43,566 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) [2022-11-16 00:38:43,597 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 [2022-11-16 00:38:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-16 00:38:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-16 00:38:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-16 00:38:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-16 00:38:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 00:38:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 00:38:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 00:38:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 00:38:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 00:38:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 00:38:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 00:38:43,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 00:38:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 00:38:43,610 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 00:38:43,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 00:38:43,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 00:38:43,845 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 00:38:43,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 00:38:43,850 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 00:38:43,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:43 BoogieIcfgContainer [2022-11-16 00:38:43,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 00:38:43,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 00:38:43,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 00:38:43,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 00:38:43,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:38:43" (1/3) ... [2022-11-16 00:38:43,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7cabe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:43, skipping insertion in model container [2022-11-16 00:38:43,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:43" (2/3) ... [2022-11-16 00:38:43,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7cabe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:38:43, skipping insertion in model container [2022-11-16 00:38:43,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:43" (3/3) ... [2022-11-16 00:38:43,858 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2022-11-16 00:38:43,863 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 00:38:43,870 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 00:38:43,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 00:38:43,870 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 00:38:43,903 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 00:38:43,932 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 00:38:43,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 00:38:43,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:43,940 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) [2022-11-16 00:38:43,941 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 [2022-11-16 00:38:43,964 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 00:38:43,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 00:38:43,980 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;@22320370, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 00:38:43,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 00:38:44,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:44,102 INFO L85 PathProgramCache]: Analyzing trace with hash 398220865, now seen corresponding path program 1 times [2022-11-16 00:38:44,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:44,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104405696] [2022-11-16 00:38:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:44,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:44,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:44,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104405696] [2022-11-16 00:38:44,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104405696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 00:38:44,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 00:38:44,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 00:38:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042879973] [2022-11-16 00:38:44,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 00:38:44,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 00:38:44,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:44,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 00:38:44,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 00:38:44,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:44,613 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:44,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-11-16 00:38:44,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 00:38:44,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 00:38:44,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:44,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1098403987, now seen corresponding path program 1 times [2022-11-16 00:38:44,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:44,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274094966] [2022-11-16 00:38:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:44,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:44,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:44,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274094966] [2022-11-16 00:38:44,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274094966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 00:38:44,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 00:38:44,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 00:38:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507006442] [2022-11-16 00:38:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 00:38:44,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 00:38:44,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 00:38:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 00:38:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:44,758 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:44,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-16 00:38:44,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-16 00:38:44,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:44,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:44,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:44,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 00:38:44,791 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:44,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1361905471, now seen corresponding path program 1 times [2022-11-16 00:38:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:44,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450388621] [2022-11-16 00:38:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:44,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:44,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450388621] [2022-11-16 00:38:44,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450388621] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 00:38:44,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821428680] [2022-11-16 00:38:44,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:44,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:44,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:44,888 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) [2022-11-16 00:38:44,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 00:38:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:44,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 00:38:44,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 00:38:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:45,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 00:38:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:45,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821428680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 00:38:45,089 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 00:38:45,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 00:38:45,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68257696] [2022-11-16 00:38:45,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 00:38:45,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 00:38:45,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:45,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 00:38:45,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 00:38:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:45,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:45,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 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) [2022-11-16 00:38:45,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:45,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:45,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:45,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:45,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 00:38:45,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:45,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1223486399, now seen corresponding path program 2 times [2022-11-16 00:38:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:45,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172544555] [2022-11-16 00:38:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:45,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:45,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:45,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172544555] [2022-11-16 00:38:45,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172544555] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 00:38:45,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469366612] [2022-11-16 00:38:45,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 00:38:45,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:45,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:45,499 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) [2022-11-16 00:38:45,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 00:38:45,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 00:38:45,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 00:38:45,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 00:38:45,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 00:38:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:45,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 00:38:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:45,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469366612] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 00:38:45,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 00:38:45,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 00:38:45,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064407106] [2022-11-16 00:38:45,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 00:38:45,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 00:38:45,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:45,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 00:38:45,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 00:38:45,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:45,708 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:45,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 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) [2022-11-16 00:38:45,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:45,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:45,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:45,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:45,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:46,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:46,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash 685364415, now seen corresponding path program 3 times [2022-11-16 00:38:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:46,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775604832] [2022-11-16 00:38:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:46,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 00:38:46,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:46,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775604832] [2022-11-16 00:38:46,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775604832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 00:38:46,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879405542] [2022-11-16 00:38:46,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 00:38:46,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:46,370 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) [2022-11-16 00:38:46,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 00:38:46,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 00:38:46,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 00:38:46,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 00:38:46,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 00:38:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-16 00:38:46,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 00:38:46,961 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-11-16 00:38:46,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879405542] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 00:38:46,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 00:38:46,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 28 [2022-11-16 00:38:46,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573134889] [2022-11-16 00:38:46,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 00:38:46,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 00:38:46,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:46,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 00:38:46,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2022-11-16 00:38:46,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:46,963 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:46,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.928571428571429) internal successors, (166), 28 states have internal predecessors, (166), 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) [2022-11-16 00:38:46,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:46,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:46,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:46,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:46,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 00:38:47,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:47,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:47,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:47,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:47,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1716544843, now seen corresponding path program 1 times [2022-11-16 00:38:47,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:47,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390820247] [2022-11-16 00:38:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 00:38:48,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:48,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390820247] [2022-11-16 00:38:48,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390820247] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 00:38:48,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877822086] [2022-11-16 00:38:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:48,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:48,093 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) [2022-11-16 00:38:48,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 00:38:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:48,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 00:38:48,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 00:38:48,351 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 00:38:48,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 00:38:48,703 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-16 00:38:48,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877822086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 00:38:48,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 00:38:48,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2022-11-16 00:38:48,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026784196] [2022-11-16 00:38:48,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 00:38:48,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 00:38:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:48,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 00:38:48,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2022-11-16 00:38:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:48,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:48,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.2272727272727275) internal successors, (159), 22 states have internal predecessors, (159), 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) [2022-11-16 00:38:48,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:48,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:48,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:48,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:48,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-11-16 00:38:48,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 00:38:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 00:38:48,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:49,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:49,176 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:49,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1260011657, now seen corresponding path program 2 times [2022-11-16 00:38:49,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:49,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692599450] [2022-11-16 00:38:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:49,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 502 proven. 49 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 00:38:49,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:49,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692599450] [2022-11-16 00:38:49,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692599450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 00:38:49,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502668739] [2022-11-16 00:38:49,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 00:38:49,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:49,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:49,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 00:38:49,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 00:38:49,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 00:38:49,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 00:38:49,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-16 00:38:49,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 00:38:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-16 00:38:49,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 00:38:49,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502668739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 00:38:49,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 00:38:49,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [29] total 31 [2022-11-16 00:38:49,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311910196] [2022-11-16 00:38:49,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 00:38:49,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 00:38:49,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:49,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 00:38:49,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2022-11-16 00:38:49,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:49,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:49,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.782608695652174) internal successors, (110), 23 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) [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 00:38:49,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 00:38:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 00:38:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 00:38:51,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:51,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:51,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:51,282 INFO L85 PathProgramCache]: Analyzing trace with hash -194148233, now seen corresponding path program 3 times [2022-11-16 00:38:51,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:51,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382430447] [2022-11-16 00:38:51,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:51,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 00:38:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 00:38:51,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 00:38:51,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382430447] [2022-11-16 00:38:51,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382430447] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 00:38:51,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261775742] [2022-11-16 00:38:51,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 00:38:51,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:51,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 00:38:51,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 00:38:51,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 00:38:51,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-11-16 00:38:51,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 00:38:51,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-16 00:38:51,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 00:38:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 00:38:51,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 00:38:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-16 00:38:52,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261775742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 00:38:52,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 00:38:52,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 38 [2022-11-16 00:38:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461047655] [2022-11-16 00:38:52,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 00:38:52,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-16 00:38:52,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 00:38:52,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-16 00:38:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1100, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 00:38:52,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:52,492 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 00:38:52,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.315789473684211) internal successors, (240), 38 states have internal predecessors, (240), 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) [2022-11-16 00:38:52,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:52,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:52,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:52,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:52,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-11-16 00:38:52,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-11-16 00:38:52,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-11-16 00:38:52,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 00:38:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-16 00:38:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 00:38:53,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:54,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 00:38:54,123 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 00:38:54,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 00:38:54,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1622520220, now seen corresponding path program 4 times [2022-11-16 00:38:54,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 00:38:54,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567859285] [2022-11-16 00:38:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 00:38:54,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 00:38:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 00:38:54,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 00:38:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 00:38:54,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 00:38:54,206 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 00:38:54,207 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 00:38:54,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 00:38:54,212 INFO L444 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1] [2022-11-16 00:38:54,212 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/3) [2022-11-16 00:38:54,215 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 00:38:54,215 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 00:38:54,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:38:54 BasicIcfg [2022-11-16 00:38:54,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 00:38:54,277 INFO L158 Benchmark]: Toolchain (without parser) took 11195.18ms. Allocated memory was 249.6MB in the beginning and 360.7MB in the end (delta: 111.1MB). Free memory was 219.9MB in the beginning and 215.8MB in the end (delta: 4.0MB). Peak memory consumption was 115.0MB. Max. memory is 8.0GB. [2022-11-16 00:38:54,277 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-11-16 00:38:54,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.06ms. Allocated memory is still 249.6MB. Free memory was 219.9MB in the beginning and 209.1MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-11-16 00:38:54,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.33ms. Allocated memory is still 249.6MB. Free memory was 209.1MB in the beginning and 207.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-11-16 00:38:54,277 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 249.6MB. Free memory was 207.0MB in the beginning and 205.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-11-16 00:38:54,277 INFO L158 Benchmark]: RCFGBuilder took 310.02ms. Allocated memory is still 249.6MB. Free memory was 205.4MB in the beginning and 192.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-11-16 00:38:54,278 INFO L158 Benchmark]: TraceAbstraction took 10423.16ms. Allocated memory was 249.6MB in the beginning and 360.7MB in the end (delta: 111.1MB). Free memory was 191.8MB in the beginning and 215.8MB in the end (delta: -24.1MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. [2022-11-16 00:38:54,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 385.06ms. Allocated memory is still 249.6MB. Free memory was 219.9MB in the beginning and 209.1MB in the end (delta: 10.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.33ms. Allocated memory is still 249.6MB. Free memory was 209.1MB in the beginning and 207.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 249.6MB. Free memory was 207.0MB in the beginning and 205.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 310.02ms. Allocated memory is still 249.6MB. Free memory was 205.4MB in the beginning and 192.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 10423.16ms. Allocated memory was 249.6MB in the beginning and 360.7MB in the end (delta: 111.1MB). Free memory was 191.8MB in the beginning and 215.8MB in the end (delta: -24.1MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20082, independent: 17135, independent conditional: 16208, independent unconditional: 927, dependent: 2947, dependent conditional: 2941, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17274, independent: 17135, independent conditional: 16208, independent unconditional: 927, dependent: 139, dependent conditional: 133, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17274, independent: 17135, independent conditional: 16208, independent unconditional: 927, dependent: 139, dependent conditional: 133, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18995, independent: 17135, independent conditional: 799, independent unconditional: 16336, dependent: 1860, dependent conditional: 922, dependent unconditional: 938, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18995, independent: 17135, independent conditional: 799, independent unconditional: 16336, dependent: 1860, dependent conditional: 291, dependent unconditional: 1569, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18995, independent: 17135, independent conditional: 799, independent unconditional: 16336, dependent: 1860, dependent conditional: 291, dependent unconditional: 1569, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 937, independent: 861, independent conditional: 34, independent unconditional: 827, dependent: 76, dependent conditional: 70, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 937, independent: 826, independent conditional: 0, independent unconditional: 826, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 111, independent: 35, independent conditional: 34, independent unconditional: 1, dependent: 76, dependent conditional: 70, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 111, independent: 35, independent conditional: 34, independent unconditional: 1, dependent: 76, dependent conditional: 70, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 222, independent: 110, independent conditional: 75, independent unconditional: 35, dependent: 112, dependent conditional: 88, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 18995, independent: 16274, independent conditional: 765, independent unconditional: 15509, dependent: 1784, dependent conditional: 221, dependent unconditional: 1563, unknown: 937, unknown conditional: 104, unknown unconditional: 833] , Statistics on independence cache: Total cache size (in pairs): 937, Positive cache size: 861, Positive conditional cache size: 34, Positive unconditional cache size: 827, Negative cache size: 76, Negative conditional cache size: 70, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 631, Maximal queried relation: 7, Independence queries for same thread: 2808 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 102, Number of trivial persistent sets: 81, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 933, independent: 927, independent conditional: 0, independent unconditional: 927, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20082, independent: 17135, independent conditional: 16208, independent unconditional: 927, dependent: 2947, dependent conditional: 2941, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17274, independent: 17135, independent conditional: 16208, independent unconditional: 927, dependent: 139, dependent conditional: 133, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17274, independent: 17135, independent conditional: 16208, independent unconditional: 927, dependent: 139, dependent conditional: 133, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18995, independent: 17135, independent conditional: 799, independent unconditional: 16336, dependent: 1860, dependent conditional: 922, dependent unconditional: 938, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18995, independent: 17135, independent conditional: 799, independent unconditional: 16336, dependent: 1860, dependent conditional: 291, dependent unconditional: 1569, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18995, independent: 17135, independent conditional: 799, independent unconditional: 16336, dependent: 1860, dependent conditional: 291, dependent unconditional: 1569, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 937, independent: 861, independent conditional: 34, independent unconditional: 827, dependent: 76, dependent conditional: 70, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 937, independent: 826, independent conditional: 0, independent unconditional: 826, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 111, independent: 35, independent conditional: 34, independent unconditional: 1, dependent: 76, dependent conditional: 70, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 111, independent: 35, independent conditional: 34, independent unconditional: 1, dependent: 76, dependent conditional: 70, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 222, independent: 110, independent conditional: 75, independent unconditional: 35, dependent: 112, dependent conditional: 88, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 18995, independent: 16274, independent conditional: 765, independent unconditional: 15509, dependent: 1784, dependent conditional: 221, dependent unconditional: 1563, unknown: 937, unknown conditional: 104, unknown unconditional: 833] , Statistics on independence cache: Total cache size (in pairs): 937, Positive cache size: 861, Positive conditional cache size: 34, Positive unconditional cache size: 827, Negative cache size: 76, Negative conditional cache size: 70, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 631, Maximal queried relation: 7, Independence queries for same thread: 2808 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; VAL [i=3, j=6] [L712] 0 pthread_t id1, id2; VAL [\old(argc)=49, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6] [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=6] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, i=3, id1={5:0}, id2={3:0}, j=6, pthread_create(&id2, ((void *)0), t2, ((void *)0))=7] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(argc)=49, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, i=3, id1={5:0}, id2={3:0}, j=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=0, k=1] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=0, k=2] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=0] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=1] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=1] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=1, k=3] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=1] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=2] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=3] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=2, k=4] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=2] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=4, k=3] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=3] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=3] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=4, k=6] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=4, k=6] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=5] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=5] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=5, k=6] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=5] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=5, k=7] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=6] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=6] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=6] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=8, k=6] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=6, k=8] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=7, k=8] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=7] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=7] [L696] COND TRUE 1 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=7] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=8] [L704] COND TRUE 2 k < 10 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=9, k=8] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=8] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=8] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=8] [L696] COND FALSE 1 !(k < 10) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=8] [L704] 2 k++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=10] [L704] COND TRUE 2 k < 10 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=10] [L706] 2 j = i + 1 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=10] [L719] 0 int condJ = j >= (2*10 +6); VAL [\old(argc)=49, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=25, id1={5:0}, id2={3:0}, j=26, k=9, k=10] [L721] COND TRUE 0 condI || condJ VAL [\old(argc)=49, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=25, id1={5:0}, id2={3:0}, j=26, k=9, k=10] [L722] 0 reach_error() VAL [\old(argc)=49, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=49, argv={51:50}, argv={51:50}, condI=0, condJ=1, i=25, id1={5:0}, id2={3:0}, j=26, k=9, k=10] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 88 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 4.1s, 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: 234, 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, 3.9s InterpolantComputationTime, 1336 NumberOfCodeBlocks, 1301 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1593 ConstructedInterpolants, 0 QuantifiedInterpolants, 6853 SizeOfPredicates, 56 NumberOfNonLiveVariables, 1202 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 1657/3203 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 proved your program to be incorrect! [2022-11-16 00:38:54,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 00:38:54,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...