./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/protection-local/circular_buffer_ok.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i ./goblint.2024-09-02_08-21-23.files/protection-local/circular_buffer_ok.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-24 12:53:20,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-24 12:53:20,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-24 12:53:20,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-24 12:53:20,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-24 12:53:20,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-24 12:53:20,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-24 12:53:20,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-24 12:53:20,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-24 12:53:20,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-24 12:53:20,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-24 12:53:20,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-24 12:53:20,643 INFO L153 SettingsManager]: * Use SBE=true [2024-09-24 12:53:20,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-24 12:53:20,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-24 12:53:20,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-24 12:53:20,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-24 12:53:20,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-24 12:53:20,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-24 12:53:20,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-24 12:53:20,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-24 12:53:20,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-24 12:53:20,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-24 12:53:20,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-24 12:53:20,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-24 12:53:20,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-24 12:53:20,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-24 12:53:20,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-24 12:53:20,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-24 12:53:20,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-24 12:53:20,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 12:53:20,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-24 12:53:20,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-24 12:53:20,650 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-24 12:53:20,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-24 12:53:20,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-24 12:53:20,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-24 12:53:20,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-24 12:53:20,838 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-24 12:53:20,839 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-24 12:53:20,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-local/circular_buffer_ok.yml/witness.yml [2024-09-24 12:53:20,882 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-24 12:53:20,882 INFO L274 PluginConnector]: CDTParser initialized [2024-09-24 12:53:20,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2024-09-24 12:53:22,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-24 12:53:22,240 INFO L384 CDTParser]: Found 1 translation units. [2024-09-24 12:53:22,241 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2024-09-24 12:53:22,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/343e28d06/f6e084f834164b7bab2138f1f08e3ff3/FLAGb4344ba05 [2024-09-24 12:53:22,624 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/343e28d06/f6e084f834164b7bab2138f1f08e3ff3 [2024-09-24 12:53:22,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-24 12:53:22,627 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-24 12:53:22,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-24 12:53:22,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-24 12:53:22,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-24 12:53:22,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 12:53:20" (1/2) ... [2024-09-24 12:53:22,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bcfa2d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 12:53:22, skipping insertion in model container [2024-09-24 12:53:22,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 12:53:20" (1/2) ... [2024-09-24 12:53:22,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47313f6a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 12:53:22, skipping insertion in model container [2024-09-24 12:53:22,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 12:53:22" (2/2) ... [2024-09-24 12:53:22,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bcfa2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:22, skipping insertion in model container [2024-09-24 12:53:22,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 12:53:22" (2/2) ... [2024-09-24 12:53:22,652 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-24 12:53:22,653 INFO L1541 ArrayList]: Location invariant before [L746-L752] (0 <= value) && (value <= 6) [2024-09-24 12:53:22,653 INFO L1541 ArrayList]: Location invariant before [L728-L735] (0 <= value) && (value <= 6) [2024-09-24 12:53:22,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-24 12:53:22,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 12:53:22,992 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-09-24 12:53:23,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 12:53:23,076 INFO L204 MainTranslator]: Completed translation [2024-09-24 12:53:23,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23 WrapperNode [2024-09-24 12:53:23,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-24 12:53:23,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-24 12:53:23,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-24 12:53:23,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-24 12:53:23,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,113 INFO L138 Inliner]: procedures = 168, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 146 [2024-09-24 12:53:23,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-24 12:53:23,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-24 12:53:23,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-24 12:53:23,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-24 12:53:23,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-24 12:53:23,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-24 12:53:23,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-24 12:53:23,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-24 12:53:23,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (1/1) ... [2024-09-24 12:53:23,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 12:53:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:23,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-24 12:53:23,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-24 12:53:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-24 12:53:23,225 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-24 12:53:23,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-24 12:53:23,225 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-24 12:53:23,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-24 12:53:23,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-24 12:53:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-24 12:53:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-24 12:53:23,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-09-24 12:53:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-24 12:53:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-24 12:53:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-24 12:53:23,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-24 12:53:23,228 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-24 12:53:23,332 INFO L242 CfgBuilder]: Building ICFG [2024-09-24 12:53:23,333 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-24 12:53:23,510 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-24 12:53:23,511 INFO L291 CfgBuilder]: Performing block encoding [2024-09-24 12:53:23,718 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-24 12:53:23,718 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-24 12:53:23,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 12:53:23 BoogieIcfgContainer [2024-09-24 12:53:23,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-24 12:53:23,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-24 12:53:23,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-24 12:53:23,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-24 12:53:23,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 12:53:20" (1/4) ... [2024-09-24 12:53:23,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fdd4a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 12:53:23, skipping insertion in model container [2024-09-24 12:53:23,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 12:53:22" (2/4) ... [2024-09-24 12:53:23,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fdd4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 12:53:23, skipping insertion in model container [2024-09-24 12:53:23,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 12:53:23" (3/4) ... [2024-09-24 12:53:23,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fdd4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 12:53:23, skipping insertion in model container [2024-09-24 12:53:23,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 12:53:23" (4/4) ... [2024-09-24 12:53:23,726 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2024-09-24 12:53:23,738 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-24 12:53:23,738 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-24 12:53:23,738 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-24 12:53:23,774 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-24 12:53:23,805 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 12:53:23,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 12:53:23,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:23,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 12:53:23,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-24 12:53:23,839 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 12:53:23,847 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2024-09-24 12:53:23,854 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@64863a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 12:53:23,854 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-24 12:53:23,921 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:23,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:23,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1070356309, now seen corresponding path program 1 times [2024-09-24 12:53:23,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:23,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610531218] [2024-09-24 12:53:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:24,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:24,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610531218] [2024-09-24 12:53:24,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610531218] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 12:53:24,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 12:53:24,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-24 12:53:24,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467496618] [2024-09-24 12:53:24,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 12:53:24,177 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 12:53:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:24,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 12:53:24,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 12:53:24,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:24,194 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:24,195 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:24,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,270 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-24 12:53:24,270 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:24,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash 196862485, now seen corresponding path program 1 times [2024-09-24 12:53:24,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:24,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733568996] [2024-09-24 12:53:24,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:24,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:24,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733568996] [2024-09-24 12:53:24,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733568996] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 12:53:24,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 12:53:24,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 12:53:24,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345651022] [2024-09-24 12:53:24,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 12:53:24,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 12:53:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 12:53:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 12:53:24,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:24,467 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:24,468 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:24,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:24,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,558 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-24 12:53:24,558 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:24,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:24,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1306505749, now seen corresponding path program 1 times [2024-09-24 12:53:24,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:24,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967601199] [2024-09-24 12:53:24,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:24,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:24,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:24,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967601199] [2024-09-24 12:53:24,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967601199] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 12:53:24,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 12:53:24,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 12:53:24,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602548985] [2024-09-24 12:53:24,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 12:53:24,642 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 12:53:24,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:24,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 12:53:24,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 12:53:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:24,644 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:24,644 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:24,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:24,702 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-24 12:53:24,702 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:24,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:24,702 INFO L85 PathProgramCache]: Analyzing trace with hash -757671041, now seen corresponding path program 2 times [2024-09-24 12:53:24,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:24,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449565779] [2024-09-24 12:53:24,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:24,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 12:53:24,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449565779] [2024-09-24 12:53:24,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449565779] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 12:53:24,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845925662] [2024-09-24 12:53:24,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 12:53:24,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:24,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:24,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 12:53:24,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-24 12:53:25,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 12:53:25,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 12:53:25,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 12:53:25,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 12:53:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 12:53:25,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 12:53:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 12:53:25,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845925662] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 12:53:25,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 12:53:25,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-24 12:53:25,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829241187] [2024-09-24 12:53:25,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 12:53:25,987 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-24 12:53:25,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:25,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-24 12:53:25,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-24 12:53:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:25,988 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:25,989 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:25,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:25,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:25,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:25,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:26,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-24 12:53:26,391 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:26,392 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:26,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:26,392 INFO L85 PathProgramCache]: Analyzing trace with hash 139108154, now seen corresponding path program 3 times [2024-09-24 12:53:26,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:26,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218066936] [2024-09-24 12:53:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:26,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:26,825 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:26,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218066936] [2024-09-24 12:53:26,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218066936] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 12:53:26,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706313404] [2024-09-24 12:53:26,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-24 12:53:26,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:26,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:26,828 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 12:53:26,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-24 12:53:27,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-24 12:53:27,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 12:53:27,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-24 12:53:27,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 12:53:27,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-24 12:53:27,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-24 12:53:27,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-24 12:53:29,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-09-24 12:53:29,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-09-24 12:53:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 87 proven. 11 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-24 12:53:29,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 12:53:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 80 proven. 18 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-24 12:53:31,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706313404] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 12:53:31,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 12:53:31,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-09-24 12:53:31,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119427870] [2024-09-24 12:53:31,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 12:53:31,242 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-24 12:53:31,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:31,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-24 12:53:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-09-24 12:53:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:31,245 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:31,245 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.9) internal successors, (138), 21 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:31,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:31,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:31,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:31,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:31,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-24 12:53:33,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-24 12:53:34,112 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:34,112 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:34,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1876561425, now seen corresponding path program 4 times [2024-09-24 12:53:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:34,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479942709] [2024-09-24 12:53:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:34,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 273 proven. 43 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 12:53:34,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:34,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479942709] [2024-09-24 12:53:34,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479942709] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 12:53:34,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066739254] [2024-09-24 12:53:34,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-24 12:53:34,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:34,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:34,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 12:53:34,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-24 12:53:34,593 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-24 12:53:34,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 12:53:34,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-24 12:53:34,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 12:53:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 12:53:34,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 12:53:34,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066739254] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 12:53:34,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 12:53:34,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 11 [2024-09-24 12:53:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309109648] [2024-09-24 12:53:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 12:53:34,686 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-24 12:53:34,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-24 12:53:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2024-09-24 12:53:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:34,688 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:34,688 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-24 12:53:34,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:35,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-24 12:53:35,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 12:53:35,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-24 12:53:35,355 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:35,356 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:35,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1483681191, now seen corresponding path program 5 times [2024-09-24 12:53:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:35,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933489442] [2024-09-24 12:53:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:35,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 12:53:35,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:35,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933489442] [2024-09-24 12:53:35,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933489442] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 12:53:35,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139105655] [2024-09-24 12:53:35,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-24 12:53:35,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:35,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:35,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 12:53:35,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-24 12:53:36,356 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-09-24 12:53:36,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 12:53:36,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-24 12:53:36,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 12:53:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 12:53:36,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 12:53:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 12:53:37,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139105655] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 12:53:37,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 12:53:37,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-09-24 12:53:37,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687718516] [2024-09-24 12:53:37,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 12:53:37,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-24 12:53:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-24 12:53:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-09-24 12:53:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:37,125 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:37,125 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.5625) internal successors, (169), 17 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:37,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-24 12:53:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-24 12:53:37,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-24 12:53:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 12:53:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 12:53:38,716 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-24 12:53:38,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-24 12:53:38,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-24 12:53:38,921 INFO L408 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2024-09-24 12:53:38,923 INFO L312 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork1 was SAFE (1/3) [2024-09-24 12:53:38,925 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 12:53:38,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 12:53:38,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:38,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 12:53:38,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2024-09-24 12:53:38,930 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 12:53:38,930 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 12:53:38,931 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@64863a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 12:53:38,931 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 12:53:38,957 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-09-24 12:53:38,958 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-09-24 12:53:38,959 INFO L408 BasicCegarLoop]: Path program histogram: [] [2024-09-24 12:53:38,959 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2024-09-24 12:53:38,960 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 12:53:38,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 12:53:38,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:38,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 12:53:38,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-09-24 12:53:38,965 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 12:53:38,965 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork0 ======== [2024-09-24 12:53:38,966 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@64863a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 12:53:38,966 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-24 12:53:38,992 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:38,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1202988402, now seen corresponding path program 1 times [2024-09-24 12:53:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:38,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435179455] [2024-09-24 12:53:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:38,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:39,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:39,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435179455] [2024-09-24 12:53:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435179455] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 12:53:39,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 12:53:39,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 12:53:39,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222138325] [2024-09-24 12:53:39,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 12:53:39,015 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 12:53:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:39,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 12:53:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 12:53:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:39,016 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:39,016 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:39,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:39,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-24 12:53:39,056 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:39,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1319927346, now seen corresponding path program 1 times [2024-09-24 12:53:39,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:39,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375178931] [2024-09-24 12:53:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:39,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:39,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375178931] [2024-09-24 12:53:39,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375178931] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 12:53:39,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 12:53:39,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 12:53:39,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437321642] [2024-09-24 12:53:39,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 12:53:39,159 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-24 12:53:39,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-24 12:53:39,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-24 12:53:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:39,163 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:39,163 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:39,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:39,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 12:53:39,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-24 12:53:39,253 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:39,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:39,254 INFO L85 PathProgramCache]: Analyzing trace with hash 894495112, now seen corresponding path program 1 times [2024-09-24 12:53:39,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:39,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142662337] [2024-09-24 12:53:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:39,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:39,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142662337] [2024-09-24 12:53:39,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142662337] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 12:53:39,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133756888] [2024-09-24 12:53:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:39,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:39,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:39,422 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 12:53:39,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-24 12:53:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:39,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 12:53:39,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 12:53:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:39,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 12:53:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133756888] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 12:53:39,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 12:53:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-24 12:53:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769143520] [2024-09-24 12:53:39,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 12:53:39,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-24 12:53:39,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:39,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-24 12:53:39,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-24 12:53:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:39,858 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:39,858 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:39,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:39,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 12:53:39,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 12:53:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:40,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-24 12:53:40,250 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:40,251 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 12:53:40,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 12:53:40,251 INFO L85 PathProgramCache]: Analyzing trace with hash -688237430, now seen corresponding path program 2 times [2024-09-24 12:53:40,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 12:53:40,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789007601] [2024-09-24 12:53:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 12:53:40,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 12:53:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 12:53:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:40,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 12:53:40,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789007601] [2024-09-24 12:53:40,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789007601] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 12:53:40,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949648258] [2024-09-24 12:53:40,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 12:53:40,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:40,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 12:53:40,575 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 12:53:40,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-24 12:53:40,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 12:53:40,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 12:53:40,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-24 12:53:40,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 12:53:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 104 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:40,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 12:53:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 63 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 12:53:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949648258] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 12:53:41,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 12:53:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 22 [2024-09-24 12:53:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106286386] [2024-09-24 12:53:41,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 12:53:41,164 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-24 12:53:41,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 12:53:41,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-24 12:53:41,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=331, Unknown=0, NotChecked=0, Total=506 [2024-09-24 12:53:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:41,165 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 12:53:41,165 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 9.363636363636363) internal successors, (206), 23 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 12:53:41,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:41,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 12:53:41,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:41,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 12:53:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 12:53:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 12:53:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 12:53:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-24 12:53:42,165 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-24 12:53:42,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-24 12:53:42,369 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 12:53:42,371 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-09-24 12:53:42,371 INFO L312 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork0 was SAFE (3/3) [2024-09-24 12:53:42,371 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-24 12:53:42,371 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-24 12:53:42,373 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-24 12:53:42,373 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-24 12:53:42,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 12:53:42 BasicIcfg [2024-09-24 12:53:42,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-24 12:53:42,374 INFO L158 Benchmark]: Toolchain (without parser) took 19749.43ms. Allocated memory was 159.4MB in the beginning and 536.9MB in the end (delta: 377.5MB). Free memory was 98.0MB in the beginning and 447.5MB in the end (delta: -349.5MB). Peak memory consumption was 294.3MB. Max. memory is 16.1GB. [2024-09-24 12:53:42,374 INFO L158 Benchmark]: Witness Parser took 0.08ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-24 12:53:42,375 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 96.5MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-24 12:53:42,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.56ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 117.2MB in the end (delta: -19.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-09-24 12:53:42,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.03ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 114.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-24 12:53:42,375 INFO L158 Benchmark]: Boogie Preprocessor took 39.03ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 113.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-24 12:53:42,375 INFO L158 Benchmark]: RCFGBuilder took 565.46ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 122.8MB in the end (delta: -9.6MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2024-09-24 12:53:42,376 INFO L158 Benchmark]: TraceAbstraction took 18653.97ms. Allocated memory was 159.4MB in the beginning and 536.9MB in the end (delta: 377.5MB). Free memory was 121.9MB in the beginning and 447.5MB in the end (delta: -325.7MB). Peak memory consumption was 318.4MB. Max. memory is 16.1GB. [2024-09-24 12:53:42,376 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.08ms. Allocated memory is still 96.5MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 96.5MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.56ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 117.2MB in the end (delta: -19.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.03ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 114.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.03ms. Allocated memory is still 159.4MB. Free memory was 114.6MB in the beginning and 113.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.46ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 122.8MB in the end (delta: -9.6MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18653.97ms. Allocated memory was 159.4MB in the beginning and 536.9MB in the end (delta: 377.5MB). Free memory was 121.9MB in the beginning and 447.5MB in the end (delta: -325.7MB). Peak memory consumption was 318.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6458, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 1074, dependent conditional: 1065, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5452, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 68, dependent conditional: 59, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5452, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 68, dependent conditional: 59, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5752, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 368, dependent conditional: 359, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5752, independent: 5384, independent conditional: 0, independent unconditional: 5384, dependent: 368, dependent conditional: 59, dependent unconditional: 309, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5752, independent: 5384, independent conditional: 0, independent unconditional: 5384, dependent: 368, dependent conditional: 59, dependent unconditional: 309, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 393, independent: 382, independent conditional: 0, independent unconditional: 382, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 393, independent: 379, independent conditional: 0, independent unconditional: 379, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 80, dependent conditional: 6, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5752, independent: 5002, independent conditional: 0, independent unconditional: 5002, dependent: 357, dependent conditional: 57, dependent unconditional: 300, unknown: 393, unknown conditional: 2, unknown unconditional: 391] , Statistics on independence cache: Total cache size (in pairs): 393, Positive cache size: 382, Positive conditional cache size: 0, Positive unconditional cache size: 382, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5162, Maximal queried relation: 7, Independence queries for same thread: 1006, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 161, Number of trivial persistent sets: 146, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 531, independent: 522, independent conditional: 0, independent unconditional: 522, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6458, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 1074, dependent conditional: 1065, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5452, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 68, dependent conditional: 59, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5452, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 68, dependent conditional: 59, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5752, independent: 5384, independent conditional: 4862, independent unconditional: 522, dependent: 368, dependent conditional: 359, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5752, independent: 5384, independent conditional: 0, independent unconditional: 5384, dependent: 368, dependent conditional: 59, dependent unconditional: 309, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5752, independent: 5384, independent conditional: 0, independent unconditional: 5384, dependent: 368, dependent conditional: 59, dependent unconditional: 309, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 393, independent: 382, independent conditional: 0, independent unconditional: 382, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 393, independent: 379, independent conditional: 0, independent unconditional: 379, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 11, dependent conditional: 2, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 80, dependent conditional: 6, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5752, independent: 5002, independent conditional: 0, independent unconditional: 5002, dependent: 357, dependent conditional: 57, dependent unconditional: 300, unknown: 393, unknown conditional: 2, unknown unconditional: 391] , Statistics on independence cache: Total cache size (in pairs): 393, Positive cache size: 382, Positive conditional cache size: 0, Positive unconditional cache size: 382, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5162, Maximal queried relation: 7, Independence queries for same thread: 1006 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 127, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 118, independent conditional: 0, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 125, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0, Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 6, Number of trivial persistent sets: 4, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, independent: 118, independent conditional: 0, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 127, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 5, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 118, independent conditional: 0, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 125, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3821, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 408, dependent conditional: 398, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3495, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 82, dependent conditional: 72, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3495, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 82, dependent conditional: 72, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3679, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 266, dependent conditional: 256, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3679, independent: 3413, independent conditional: 32, independent unconditional: 3381, dependent: 266, dependent conditional: 52, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3679, independent: 3413, independent conditional: 32, independent unconditional: 3381, dependent: 266, dependent conditional: 52, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 425, independent: 389, independent conditional: 16, independent unconditional: 373, dependent: 36, dependent conditional: 24, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 425, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 57, independent: 21, independent conditional: 16, independent unconditional: 5, dependent: 36, dependent conditional: 24, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 21, independent conditional: 16, independent unconditional: 5, dependent: 36, dependent conditional: 24, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 695, independent: 62, independent conditional: 56, independent unconditional: 7, dependent: 633, dependent conditional: 557, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3679, independent: 3024, independent conditional: 16, independent unconditional: 3008, dependent: 230, dependent conditional: 28, dependent unconditional: 202, unknown: 425, unknown conditional: 40, unknown unconditional: 385] , Statistics on independence cache: Total cache size (in pairs): 425, Positive cache size: 389, Positive conditional cache size: 16, Positive unconditional cache size: 373, Negative cache size: 36, Negative conditional cache size: 24, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3100, Maximal queried relation: 4, Independence queries for same thread: 326, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 223, Number of trivial persistent sets: 197, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 495, independent: 485, independent conditional: 0, independent unconditional: 485, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3821, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 408, dependent conditional: 398, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3495, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 82, dependent conditional: 72, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3495, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 82, dependent conditional: 72, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3679, independent: 3413, independent conditional: 2928, independent unconditional: 485, dependent: 266, dependent conditional: 256, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3679, independent: 3413, independent conditional: 32, independent unconditional: 3381, dependent: 266, dependent conditional: 52, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3679, independent: 3413, independent conditional: 32, independent unconditional: 3381, dependent: 266, dependent conditional: 52, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 425, independent: 389, independent conditional: 16, independent unconditional: 373, dependent: 36, dependent conditional: 24, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 425, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 57, independent: 21, independent conditional: 16, independent unconditional: 5, dependent: 36, dependent conditional: 24, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 21, independent conditional: 16, independent unconditional: 5, dependent: 36, dependent conditional: 24, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 695, independent: 62, independent conditional: 56, independent unconditional: 7, dependent: 633, dependent conditional: 557, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3679, independent: 3024, independent conditional: 16, independent unconditional: 3008, dependent: 230, dependent conditional: 28, dependent unconditional: 202, unknown: 425, unknown conditional: 40, unknown unconditional: 385] , Statistics on independence cache: Total cache size (in pairs): 425, Positive cache size: 389, Positive conditional cache size: 16, Positive unconditional cache size: 373, Negative cache size: 36, Negative conditional cache size: 24, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3100, Maximal queried relation: 4, Independence queries for same thread: 326 - PositiveResult [Line: 728]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 746]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 51 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 5.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 65, 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, 0.9s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 694 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 889 ConstructedInterpolants, 14 QuantifiedInterpolants, 7905 SizeOfPredicates, 107 NumberOfNonLiveVariables, 1246 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 888/1828 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 51 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 51 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.3s, 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: 24, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 1973 SizeOfPredicates, 60 NumberOfNonLiveVariables, 565 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 167/417 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-24 12:53:42,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Forceful destruction successful, exit code 0 [2024-09-24 12:53:42,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Forceful destruction successful, exit code 0 [2024-09-24 12:53:42,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-09-24 12:53:43,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE