./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/popl20-nonblocking-cntr-alt.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca 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/weaver/popl20-nonblocking-cntr-alt.wvr.c ./goblint.2024-06-19_11-23-25.files/protection/popl20-nonblocking-cntr-alt.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2520d7c-m [2024-07-17 11:14:33,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 11:14:33,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 11:14:33,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 11:14:33,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 11:14:33,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 11:14:33,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 11:14:33,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 11:14:33,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 11:14:33,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 11:14:33,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 11:14:33,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 11:14:33,487 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 11:14:33,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 11:14:33,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 11:14:33,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 11:14:33,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 11:14:33,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 11:14:33,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 11:14:33,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 11:14:33,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 11:14:33,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 11:14:33,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 11:14:33,490 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 11:14:33,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 11:14:33,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 11:14:33,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 11:14:33,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 11:14:33,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 11:14:33,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 11:14:33,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 11:14:33,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 11:14:33,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 11:14:33,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 11:14:33,493 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 11:14:33,497 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 11:14:33,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-17 11:14:33,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 11:14:33,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 11:14:33,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 11:14:33,701 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-17 11:14:33,701 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-17 11:14:33,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/protection/popl20-nonblocking-cntr-alt.wvr.yml/witness.yml [2024-07-17 11:14:33,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 11:14:33,786 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 11:14:33,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-07-17 11:14:34,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 11:14:34,872 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 11:14:34,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-07-17 11:14:34,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7b30bb5a8/93087940f29a406d989395935c8a4e8a/FLAG8a9df7259 [2024-07-17 11:14:34,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7b30bb5a8/93087940f29a406d989395935c8a4e8a [2024-07-17 11:14:34,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 11:14:34,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 11:14:34,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 11:14:34,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 11:14:34,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 11:14:34,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 11:14:33" (1/2) ... [2024-07-17 11:14:34,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bdde8ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:14:34, skipping insertion in model container [2024-07-17 11:14:34,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 11:14:33" (1/2) ... [2024-07-17 11:14:34,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78d7f434 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.07 11:14:34, skipping insertion in model container [2024-07-17 11:14:34,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:14:34" (2/2) ... [2024-07-17 11:14:34,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bdde8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:34, skipping insertion in model container [2024-07-17 11:14:34,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:14:34" (2/2) ... [2024-07-17 11:14:34,901 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-17 11:14:34,909 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-17 11:14:34,910 INFO L97 edCorrectnessWitness]: Location invariant before [L74-L74] ! multithreaded || 0 <= counter [2024-07-17 11:14:34,910 INFO L97 edCorrectnessWitness]: Location invariant before [L73-L73] ! multithreaded || 0 <= counter [2024-07-17 11:14:34,910 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-17 11:14:34,910 INFO L106 edCorrectnessWitness]: ghost_update [L72-L72] multithreaded = 1; [2024-07-17 11:14:34,928 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 11:14:35,109 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2124,2137] [2024-07-17 11:14:35,112 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 11:14:35,124 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-17 11:14:35,163 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2124,2137] [2024-07-17 11:14:35,168 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 11:14:35,181 INFO L206 MainTranslator]: Completed translation [2024-07-17 11:14:35,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35 WrapperNode [2024-07-17 11:14:35,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 11:14:35,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 11:14:35,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 11:14:35,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 11:14:35,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,212 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2024-07-17 11:14:35,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 11:14:35,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 11:14:35,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 11:14:35,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 11:14:35,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 11:14:35,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 11:14:35,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 11:14:35,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 11:14:35,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (1/1) ... [2024-07-17 11:14:35,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 11:14:35,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:35,286 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) [2024-07-17 11:14:35,306 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 [2024-07-17 11:14:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 11:14:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-17 11:14:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-17 11:14:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-17 11:14:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-17 11:14:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 11:14:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-07-17 11:14:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-07-17 11:14:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 11:14:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 11:14:35,322 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 11:14:35,397 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 11:14:35,398 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 11:14:35,563 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 11:14:35,563 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 11:14:35,665 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 11:14:35,666 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-07-17 11:14:35,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:14:35 BoogieIcfgContainer [2024-07-17 11:14:35,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 11:14:35,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 11:14:35,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 11:14:35,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 11:14:35,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.07 11:14:33" (1/4) ... [2024-07-17 11:14:35,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b43a3f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 17.07 11:14:35, skipping insertion in model container [2024-07-17 11:14:35,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:14:34" (2/4) ... [2024-07-17 11:14:35,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b43a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:14:35, skipping insertion in model container [2024-07-17 11:14:35,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:14:35" (3/4) ... [2024-07-17 11:14:35,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b43a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:14:35, skipping insertion in model container [2024-07-17 11:14:35,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:14:35" (4/4) ... [2024-07-17 11:14:35,677 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2024-07-17 11:14:35,690 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 11:14:35,690 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-07-17 11:14:35,690 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 11:14:35,739 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-17 11:14:35,774 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 11:14:35,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 11:14:35,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:35,775 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) [2024-07-17 11:14:35,776 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 [2024-07-17 11:14:35,798 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 11:14:35,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 11:14:35,817 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5824b44f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 11:14:35,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-07-17 11:14:35,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:35,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:35,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1381188517, now seen corresponding path program 1 times [2024-07-17 11:14:35,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:35,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855517429] [2024-07-17 11:14:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:35,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:36,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:36,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855517429] [2024-07-17 11:14:36,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855517429] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 11:14:36,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 11:14:36,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-07-17 11:14:36,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881362840] [2024-07-17 11:14:36,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 11:14:36,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 11:14:36,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 11:14:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 11:14:36,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:36,054 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:36,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-07-17 11:14:36,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:36,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:36,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 11:14:36,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:36,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1514648340, now seen corresponding path program 1 times [2024-07-17 11:14:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423041822] [2024-07-17 11:14:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:36,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:36,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:36,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423041822] [2024-07-17 11:14:36,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423041822] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:14:36,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143521537] [2024-07-17 11:14:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:36,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:36,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:36,733 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) [2024-07-17 11:14:36,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-17 11:14:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:36,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2024-07-17 11:14:36,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:14:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:37,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:14:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143521537] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:14:37,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:14:37,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-07-17 11:14:37,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442138865] [2024-07-17 11:14:37,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:14:37,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-07-17 11:14:37,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:37,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-07-17 11:14:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-07-17 11:14:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:37,530 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:37,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 23 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) [2024-07-17 11:14:37,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:37,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:37,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-17 11:14:38,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-07-17 11:14:38,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:38,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:38,037 INFO L85 PathProgramCache]: Analyzing trace with hash -935674128, now seen corresponding path program 2 times [2024-07-17 11:14:38,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:38,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460580909] [2024-07-17 11:14:38,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:38,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:38,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460580909] [2024-07-17 11:14:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460580909] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:14:38,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533524602] [2024-07-17 11:14:38,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-17 11:14:38,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:38,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:38,311 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) [2024-07-17 11:14:38,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-17 11:14:38,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-17 11:14:38,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:14:38,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 20 conjunts are in the unsatisfiable core [2024-07-17 11:14:38,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:14:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:38,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:14:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:38,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533524602] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:14:38,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:14:38,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13] total 34 [2024-07-17 11:14:38,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38650386] [2024-07-17 11:14:38,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:14:38,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-07-17 11:14:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-07-17 11:14:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2024-07-17 11:14:38,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:38,954 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:38,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 34 states have internal predecessors, (62), 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) [2024-07-17 11:14:38,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:38,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:38,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:40,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-07-17 11:14:40,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-07-17 11:14:40,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:40,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:40,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:40,290 INFO L85 PathProgramCache]: Analyzing trace with hash 658977008, now seen corresponding path program 3 times [2024-07-17 11:14:40,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:40,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150095745] [2024-07-17 11:14:40,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:40,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-07-17 11:14:40,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:40,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150095745] [2024-07-17 11:14:40,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150095745] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:14:40,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288283281] [2024-07-17 11:14:40,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-17 11:14:40,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:40,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:40,461 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) [2024-07-17 11:14:40,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-17 11:14:40,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-07-17 11:14:40,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:14:40,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjunts are in the unsatisfiable core [2024-07-17 11:14:40,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:14:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-07-17 11:14:40,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:14:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-07-17 11:14:40,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288283281] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:14:40,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:14:40,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-07-17 11:14:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243807469] [2024-07-17 11:14:40,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:14:40,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-07-17 11:14:40,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:40,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-07-17 11:14:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-07-17 11:14:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:40,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:40,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 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) [2024-07-17 11:14:40,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:40,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:40,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2024-07-17 11:14:40,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-07-17 11:14:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-07-17 11:14:40,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-07-17 11:14:41,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:41,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:41,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:41,036 INFO L85 PathProgramCache]: Analyzing trace with hash -956764044, now seen corresponding path program 4 times [2024-07-17 11:14:41,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:41,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129201064] [2024-07-17 11:14:41,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:41,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-17 11:14:41,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:41,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129201064] [2024-07-17 11:14:41,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129201064] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:14:41,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135257864] [2024-07-17 11:14:41,355 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-17 11:14:41,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:41,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:41,356 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) [2024-07-17 11:14:41,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-17 11:14:41,403 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-17 11:14:41,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:14:41,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 32 conjunts are in the unsatisfiable core [2024-07-17 11:14:41,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:14:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:41,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:14:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-17 11:14:42,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135257864] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:14:42,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:14:42,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 17] total 46 [2024-07-17 11:14:42,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239752756] [2024-07-17 11:14:42,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:14:42,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-07-17 11:14:42,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:42,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-07-17 11:14:42,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1923, Unknown=0, NotChecked=0, Total=2162 [2024-07-17 11:14:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:42,153 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:42,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 46 states have internal predecessors, (85), 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) [2024-07-17 11:14:42,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2024-07-17 11:14:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-07-17 11:14:42,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-07-17 11:14:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-07-17 11:14:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-07-17 11:14:43,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-07-17 11:14:43,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:43,970 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:43,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:43,971 INFO L85 PathProgramCache]: Analyzing trace with hash -365245320, now seen corresponding path program 5 times [2024-07-17 11:14:43,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:43,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281147385] [2024-07-17 11:14:43,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:43,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-07-17 11:14:44,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:44,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281147385] [2024-07-17 11:14:44,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281147385] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:14:44,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227918275] [2024-07-17 11:14:44,259 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-07-17 11:14:44,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:44,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:44,260 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 11:14:44,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-07-17 11:14:44,302 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-07-17 11:14:44,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:14:44,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 29 conjunts are in the unsatisfiable core [2024-07-17 11:14:44,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:14:44,632 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:44,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:14:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:45,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227918275] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:14:45,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:14:45,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 17] total 45 [2024-07-17 11:14:45,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769684080] [2024-07-17 11:14:45,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:14:45,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-07-17 11:14:45,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:45,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-07-17 11:14:45,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1794, Unknown=0, NotChecked=0, Total=2070 [2024-07-17 11:14:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:45,114 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:45,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.7826086956521738) internal successors, (82), 45 states have internal predecessors, (82), 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) [2024-07-17 11:14:45,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:45,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-07-17 11:14:45,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2024-07-17 11:14:45,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-07-17 11:14:45,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-07-17 11:14:45,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-17 11:14:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-07-17 11:14:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-07-17 11:14:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-07-17 11:14:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-07-17 11:14:50,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-07-17 11:14:50,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:50,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:50,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1428355807, now seen corresponding path program 1 times [2024-07-17 11:14:50,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:50,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510956558] [2024-07-17 11:14:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-07-17 11:14:50,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:50,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510956558] [2024-07-17 11:14:50,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510956558] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 11:14:50,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 11:14:50,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-17 11:14:50,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859087712] [2024-07-17 11:14:50,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 11:14:50,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 11:14:50,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 11:14:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 11:14:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:50,751 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:50,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2024-07-17 11:14:50,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-07-17 11:14:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-07-17 11:14:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-07-17 11:14:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-07-17 11:14:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-07-17 11:14:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:50,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-07-17 11:14:50,965 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-17 11:14:50,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 11:14:50,966 INFO L85 PathProgramCache]: Analyzing trace with hash -542983120, now seen corresponding path program 6 times [2024-07-17 11:14:50,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 11:14:50,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146702071] [2024-07-17 11:14:50,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 11:14:50,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 11:14:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 11:14:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:51,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 11:14:51,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146702071] [2024-07-17 11:14:51,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146702071] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 11:14:51,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640604426] [2024-07-17 11:14:51,188 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-07-17 11:14:51,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 11:14:51,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 11:14:51,189 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 11:14:51,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-07-17 11:14:51,225 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-07-17 11:14:51,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 11:14:51,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2024-07-17 11:14:51,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 11:14:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:51,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 11:14:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 11:14:52,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640604426] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 11:14:52,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 11:14:52,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2024-07-17 11:14:52,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736819600] [2024-07-17 11:14:52,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 11:14:52,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-07-17 11:14:52,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 11:14:52,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-07-17 11:14:52,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1358, Unknown=0, NotChecked=0, Total=1560 [2024-07-17 11:14:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:52,126 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 11:14:52,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.925) internal successors, (77), 39 states have internal predecessors, (77), 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) [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:52,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 11:14:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-07-17 11:14:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-07-17 11:14:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-07-17 11:14:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-07-17 11:14:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-07-17 11:14:53,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 11:14:53,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-07-17 11:14:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-07-17 11:14:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-07-17 11:14:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-07-17 11:14:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-07-17 11:14:53,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-07-17 11:14:53,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-07-17 11:14:53,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-07-17 11:14:53,237 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2024-07-17 11:14:53,239 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-17 11:14:53,239 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-17 11:14:53,240 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-07-17 11:14:53,240 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-07-17 11:14:53,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:14:53 BasicIcfg [2024-07-17 11:14:53,241 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-17 11:14:53,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-17 11:14:53,242 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-17 11:14:53,242 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-17 11:14:53,243 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:14:35" (4/5) ... [2024-07-17 11:14:53,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-07-17 11:14:53,246 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-07-17 11:14:53,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-07-17 11:14:53,249 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-07-17 11:14:53,249 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-07-17 11:14:53,250 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-07-17 11:14:53,250 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-07-17 11:14:53,290 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c-witness.graphml [2024-07-17 11:14:53,290 INFO L149 WitnessManager]: Wrote witness to /storage/repos/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c-witness.yml [2024-07-17 11:14:53,290 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-17 11:14:53,291 INFO L158 Benchmark]: Toolchain (without parser) took 18398.31ms. Allocated memory was 138.4MB in the beginning and 314.6MB in the end (delta: 176.2MB). Free memory was 65.9MB in the beginning and 136.3MB in the end (delta: -70.4MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,291 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 11:14:53,291 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 138.4MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 11:14:53,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.15ms. Allocated memory is still 138.4MB. Free memory was 65.6MB in the beginning and 101.7MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.52ms. Allocated memory is still 138.4MB. Free memory was 101.7MB in the beginning and 100.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,292 INFO L158 Benchmark]: Boogie Preprocessor took 45.55ms. Allocated memory is still 138.4MB. Free memory was 100.4MB in the beginning and 98.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,292 INFO L158 Benchmark]: RCFGBuilder took 408.56ms. Allocated memory is still 138.4MB. Free memory was 98.9MB in the beginning and 75.4MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,292 INFO L158 Benchmark]: TraceAbstraction took 17571.62ms. Allocated memory was 138.4MB in the beginning and 314.6MB in the end (delta: 176.2MB). Free memory was 74.5MB in the beginning and 139.4MB in the end (delta: -65.0MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,292 INFO L158 Benchmark]: Witness Printer took 48.76ms. Allocated memory is still 314.6MB. Free memory was 139.4MB in the beginning and 136.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 11:14:53,294 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 0.16ms. Allocated memory is still 113.2MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.79ms. Allocated memory is still 138.4MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.15ms. Allocated memory is still 138.4MB. Free memory was 65.6MB in the beginning and 101.7MB in the end (delta: -36.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.52ms. Allocated memory is still 138.4MB. Free memory was 101.7MB in the beginning and 100.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.55ms. Allocated memory is still 138.4MB. Free memory was 100.4MB in the beginning and 98.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.56ms. Allocated memory is still 138.4MB. Free memory was 98.9MB in the beginning and 75.4MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17571.62ms. Allocated memory was 138.4MB in the beginning and 314.6MB in the end (delta: 176.2MB). Free memory was 74.5MB in the beginning and 139.4MB in the end (delta: -65.0MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. * Witness Printer took 48.76ms. Allocated memory is still 314.6MB. Free memory was 139.4MB in the beginning and 136.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7911, independent: 6896, independent conditional: 6635, independent unconditional: 261, dependent: 1015, dependent conditional: 1007, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7009, independent: 6896, independent conditional: 6635, independent unconditional: 261, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7009, independent: 6896, independent conditional: 6635, independent unconditional: 261, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7992, independent: 6896, independent conditional: 272, independent unconditional: 6624, dependent: 1096, dependent conditional: 711, dependent unconditional: 385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7992, independent: 6896, independent conditional: 272, independent unconditional: 6624, dependent: 1096, dependent conditional: 710, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7992, independent: 6896, independent conditional: 272, independent unconditional: 6624, dependent: 1096, dependent conditional: 710, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 343, independent: 285, independent conditional: 54, independent unconditional: 231, dependent: 58, dependent conditional: 50, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 343, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 119, independent: 61, independent conditional: 54, independent unconditional: 7, dependent: 58, dependent conditional: 50, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 119, independent: 61, independent conditional: 54, independent unconditional: 7, dependent: 58, dependent conditional: 50, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 254, independent: 127, independent conditional: 87, independent unconditional: 41, dependent: 127, dependent conditional: 96, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7992, independent: 6611, independent conditional: 218, independent unconditional: 6393, dependent: 1038, dependent conditional: 660, dependent unconditional: 378, unknown: 343, unknown conditional: 104, unknown unconditional: 239] , Statistics on independence cache: Total cache size (in pairs): 343, Positive cache size: 285, Positive conditional cache size: 54, Positive unconditional cache size: 231, Negative cache size: 58, Negative conditional cache size: 50, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 8, Independence queries for same thread: 902 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 109, Number of trivial persistent sets: 100, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 269, independent: 261, independent conditional: 0, independent unconditional: 261, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7911, independent: 6896, independent conditional: 6635, independent unconditional: 261, dependent: 1015, dependent conditional: 1007, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7009, independent: 6896, independent conditional: 6635, independent unconditional: 261, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7009, independent: 6896, independent conditional: 6635, independent unconditional: 261, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7992, independent: 6896, independent conditional: 272, independent unconditional: 6624, dependent: 1096, dependent conditional: 711, dependent unconditional: 385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7992, independent: 6896, independent conditional: 272, independent unconditional: 6624, dependent: 1096, dependent conditional: 710, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7992, independent: 6896, independent conditional: 272, independent unconditional: 6624, dependent: 1096, dependent conditional: 710, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 343, independent: 285, independent conditional: 54, independent unconditional: 231, dependent: 58, dependent conditional: 50, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 343, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 119, independent: 61, independent conditional: 54, independent unconditional: 7, dependent: 58, dependent conditional: 50, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 119, independent: 61, independent conditional: 54, independent unconditional: 7, dependent: 58, dependent conditional: 50, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 254, independent: 127, independent conditional: 87, independent unconditional: 41, dependent: 127, dependent conditional: 96, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7992, independent: 6611, independent conditional: 218, independent unconditional: 6393, dependent: 1038, dependent conditional: 660, dependent unconditional: 378, unknown: 343, unknown conditional: 104, unknown unconditional: 239] , Statistics on independence cache: Total cache size (in pairs): 343, Positive cache size: 285, Positive conditional cache size: 54, Positive unconditional cache size: 231, Negative cache size: 58, Negative conditional cache size: 50, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 8, Independence queries for same thread: 902 - PositiveResult [Line: 73]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 74]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 78]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 36 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 17.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 9.9s, 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: 381, 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, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 538 ConstructedInterpolants, 0 QuantifiedInterpolants, 5481 SizeOfPredicates, 26 NumberOfNonLiveVariables, 694 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 83/400 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-07-17 11:14:53,314 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 [2024-07-17 11:14:53,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE