./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/popl20-counter-fun.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f 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-counter-fun.wvr.c ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/popl20-counter-fun.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.dk.goblint-eval-da67795-m [2024-08-27 04:13:21,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 04:13:21,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 04:13:21,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 04:13:21,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 04:13:21,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 04:13:21,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 04:13:21,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 04:13:21,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 04:13:21,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 04:13:21,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 04:13:21,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 04:13:21,518 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 04:13:21,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 04:13:21,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 04:13:21,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 04:13:21,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 04:13:21,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 04:13:21,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 04:13:21,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 04:13:21,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 04:13:21,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 04:13:21,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 04:13:21,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 04:13:21,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 04:13:21,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 04:13:21,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 04:13:21,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 04:13:21,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 04:13:21,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 04:13:21,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 04:13:21,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 04:13:21,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 04:13:21,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 04:13:21,525 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 04:13:21,526 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 04:13:21,526 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 04:13:21,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 04:13:21,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 04:13:21,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 04:13:21,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 04:13:21,772 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 04:13:21,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-27 04:13:22,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 04:13:23,087 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 04:13:23,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-27 04:13:23,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7e440a833/6ab9dcd20ed44a28aefd5f48ab212176/FLAG8cd469e83 [2024-08-27 04:13:23,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7e440a833/6ab9dcd20ed44a28aefd5f48ab212176 [2024-08-27 04:13:23,505 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 04:13:23,506 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 04:13:23,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/popl20-counter-fun.wvr.yml/witness.yml [2024-08-27 04:13:23,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 04:13:23,571 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 04:13:23,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 04:13:23,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 04:13:23,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 04:13:23,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:13:23" (1/2) ... [2024-08-27 04:13:23,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c29e78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:23, skipping insertion in model container [2024-08-27 04:13:23,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:13:23" (1/2) ... [2024-08-27 04:13:23,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44525c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:13:23, skipping insertion in model container [2024-08-27 04:13:23,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 04:13:23" (2/2) ... [2024-08-27 04:13:23,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c29e78e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23, skipping insertion in model container [2024-08-27 04:13:23,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 04:13:23" (2/2) ... [2024-08-27 04:13:23,579 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 04:13:23,590 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 04:13:23,590 INFO L1541 ArrayList]: Location invariant before [L84-L84] ! multithreaded || ((((((((((((2147483648LL + (long long )N) + (long long )n >= 0LL && (2147483648LL + (long long )N) + (long long )n_inv >= 0LL) && (1073741823LL - (long long )n) + (long long )n_inv >= 0LL) && (2147483647LL - (long long )N) + (long long )n >= 0LL) && (2147483647LL - (long long )N) + (long long )n_inv >= 0LL) && (long long )n + (long long )n_inv >= 0LL) && (1073741823LL + (long long )n) - (long long )n_inv >= 0LL) && (3221225471LL + (long long )N) - (long long )n >= 0LL) && (3221225471LL + (long long )N) - (long long )n_inv >= 0LL) && (2147483646LL - (long long )n) - (long long )n_inv >= 0LL) && (3221225470LL - (long long )N) - (long long )n >= 0LL) && (3221225470LL - (long long )N) - (long long )n_inv >= 0LL) [2024-08-27 04:13:23,590 INFO L1541 ArrayList]: Location invariant before [L83-L83] ! multithreaded || ((((((((((((2147483648LL + (long long )N) + (long long )n >= 0LL && (2147483648LL + (long long )N) + (long long )n_inv >= 0LL) && (1073741823LL - (long long )n) + (long long )n_inv >= 0LL) && (2147483647LL - (long long )N) + (long long )n >= 0LL) && (2147483647LL - (long long )N) + (long long )n_inv >= 0LL) && (long long )n + (long long )n_inv >= 0LL) && (1073741823LL + (long long )n) - (long long )n_inv >= 0LL) && (3221225471LL + (long long )N) - (long long )n >= 0LL) && (3221225471LL + (long long )N) - (long long )n_inv >= 0LL) && (2147483646LL - (long long )n) - (long long )n_inv >= 0LL) && (3221225470LL - (long long )N) - (long long )n >= 0LL) && (3221225470LL - (long long )N) - (long long )n_inv >= 0LL) [2024-08-27 04:13:23,590 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-08-27 04:13:23,590 INFO L1541 ArrayList]: ghost_update [L82-L82] multithreaded = 1; [2024-08-27 04:13:23,615 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 04:13:23,751 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-counter-fun.wvr.c[2707,2720] [2024-08-27 04:13:23,764 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 04:13:23,771 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 04:13:23,824 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-counter-fun.wvr.c[2707,2720] [2024-08-27 04:13:23,826 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 04:13:23,839 INFO L206 MainTranslator]: Completed translation [2024-08-27 04:13:23,840 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23 WrapperNode [2024-08-27 04:13:23,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 04:13:23,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 04:13:23,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 04:13:23,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 04:13:23,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,886 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 198 [2024-08-27 04:13:23,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 04:13:23,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 04:13:23,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 04:13:23,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 04:13:23,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 04:13:23,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 04:13:23,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 04:13:23,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 04:13:23,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (1/1) ... [2024-08-27 04:13:23,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 04:13:23,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:23,943 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) [2024-08-27 04:13:23,945 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 [2024-08-27 04:13:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 04:13:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-27 04:13:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-27 04:13:23,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-27 04:13:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 04:13:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 04:13:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-27 04:13:23,982 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 04:13:24,057 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 04:13:24,059 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 04:13:24,335 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 04:13:24,335 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 04:13:24,528 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 04:13:24,528 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-27 04:13:24,529 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:24 BoogieIcfgContainer [2024-08-27 04:13:24,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 04:13:24,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 04:13:24,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 04:13:24,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 04:13:24,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:13:23" (1/4) ... [2024-08-27 04:13:24,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893db7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:13:24, skipping insertion in model container [2024-08-27 04:13:24,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 04:13:23" (2/4) ... [2024-08-27 04:13:24,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893db7e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 04:13:24, skipping insertion in model container [2024-08-27 04:13:24,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:13:23" (3/4) ... [2024-08-27 04:13:24,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3893db7e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 04:13:24, skipping insertion in model container [2024-08-27 04:13:24,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:13:24" (4/4) ... [2024-08-27 04:13:24,537 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-08-27 04:13:24,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 04:13:24,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-27 04:13:24,552 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 04:13:24,585 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-27 04:13:24,619 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 04:13:24,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 04:13:24,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:24,622 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) [2024-08-27 04:13:24,623 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 [2024-08-27 04:13:24,650 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 04:13:24,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 04:13:24,664 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;@67d905, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 04:13:24,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-08-27 04:13:24,708 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)] === [2024-08-27 04:13:24,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:24,712 INFO L85 PathProgramCache]: Analyzing trace with hash 403392003, now seen corresponding path program 1 times [2024-08-27 04:13:24,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:24,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437286152] [2024-08-27 04:13:24,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:24,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:25,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:25,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:25,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437286152] [2024-08-27 04:13:25,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437286152] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 04:13:25,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 04:13:25,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 04:13:25,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155063966] [2024-08-27 04:13:25,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 04:13:25,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 04:13:25,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:25,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 04:13:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-08-27 04:13:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:25,370 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:25,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-08-27 04:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:25,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 04:13:25,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:25,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1093667046, now seen corresponding path program 1 times [2024-08-27 04:13:25,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:25,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260842528] [2024-08-27 04:13:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260842528] [2024-08-27 04:13:25,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260842528] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038362165] [2024-08-27 04:13:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:25,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:25,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:25,847 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) [2024-08-27 04:13:25,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-27 04:13:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:25,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 19 conjunts are in the unsatisfiable core [2024-08-27 04:13:25,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:26,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:26,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 04:13:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:26,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038362165] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 04:13:26,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 04:13:26,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-08-27 04:13:26,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394164985] [2024-08-27 04:13:26,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 04:13:26,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-27 04:13:26,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:26,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-27 04:13:26,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-08-27 04:13:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:26,393 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:26,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 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) [2024-08-27 04:13:26,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:26,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:26,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-27 04:13:26,813 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 [2024-08-27 04:13:26,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:26,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash -63286333, now seen corresponding path program 2 times [2024-08-27 04:13:26,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:26,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98039816] [2024-08-27 04:13:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:26,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:27,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98039816] [2024-08-27 04:13:27,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98039816] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585922493] [2024-08-27 04:13:27,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 04:13:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:27,141 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) [2024-08-27 04:13:27,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-27 04:13:27,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-27 04:13:27,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 04:13:27,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjunts are in the unsatisfiable core [2024-08-27 04:13:27,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-08-27 04:13:27,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 04:13:27,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585922493] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 04:13:27,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 04:13:27,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2024-08-27 04:13:27,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678012317] [2024-08-27 04:13:27,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 04:13:27,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 04:13:27,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:27,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 04:13:27,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-08-27 04:13:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:27,337 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:27,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-08-27 04:13:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:27,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:27,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-27 04:13:27,572 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 [2024-08-27 04:13:27,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:27,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:27,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1301874477, now seen corresponding path program 1 times [2024-08-27 04:13:27,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:27,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702970693] [2024-08-27 04:13:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:27,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:27,954 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:27,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:27,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702970693] [2024-08-27 04:13:27,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702970693] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:27,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875807593] [2024-08-27 04:13:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:27,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:27,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:27,958 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) [2024-08-27 04:13:27,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-27 04:13:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:28,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 28 conjunts are in the unsatisfiable core [2024-08-27 04:13:28,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:28,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 04:13:28,751 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875807593] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 04:13:28,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 04:13:28,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-08-27 04:13:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455575724] [2024-08-27 04:13:28,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 04:13:28,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-08-27 04:13:28,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-08-27 04:13:28,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-08-27 04:13:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:28,754 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:28,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.434782608695652) internal successors, (33), 23 states have internal predecessors, (33), 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) [2024-08-27 04:13:28,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:28,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:28,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:28,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:29,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-27 04:13:29,605 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 [2024-08-27 04:13:29,606 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:29,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash 383756941, now seen corresponding path program 2 times [2024-08-27 04:13:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:29,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187120727] [2024-08-27 04:13:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:29,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 04:13:30,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:30,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187120727] [2024-08-27 04:13:30,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187120727] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:30,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057083479] [2024-08-27 04:13:30,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 04:13:30,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:30,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:30,182 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) [2024-08-27 04:13:30,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-27 04:13:30,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-27 04:13:30,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 04:13:30,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjunts are in the unsatisfiable core [2024-08-27 04:13:30,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-08-27 04:13:30,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 04:13:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057083479] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 04:13:30,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 04:13:30,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [14] total 16 [2024-08-27 04:13:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017662598] [2024-08-27 04:13:30,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 04:13:30,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 04:13:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:30,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 04:13:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-08-27 04:13:30,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:30,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-08-27 04:13:30,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:30,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:30,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:30,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:30,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:30,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-27 04:13:30,932 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 [2024-08-27 04:13:30,933 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)] === [2024-08-27 04:13:30,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:30,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1629842333, now seen corresponding path program 1 times [2024-08-27 04:13:30,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:30,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299826056] [2024-08-27 04:13:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-08-27 04:13:31,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:31,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299826056] [2024-08-27 04:13:31,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299826056] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 04:13:31,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 04:13:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 04:13:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399831087] [2024-08-27 04:13:31,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 04:13:31,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 04:13:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 04:13:31,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-27 04:13:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:31,034 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:31,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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) [2024-08-27 04:13:31,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:31,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:31,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:31,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:31,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-27 04:13:31,101 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:31,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2027142110, now seen corresponding path program 1 times [2024-08-27 04:13:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:31,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455107306] [2024-08-27 04:13:31,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:31,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-08-27 04:13:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:31,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455107306] [2024-08-27 04:13:31,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455107306] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:31,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358330858] [2024-08-27 04:13:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:31,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:31,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:31,199 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) [2024-08-27 04:13:31,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-27 04:13:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:31,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-27 04:13:31,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-08-27 04:13:31,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 04:13:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-27 04:13:31,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358330858] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 04:13:31,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 04:13:31,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-08-27 04:13:31,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833988781] [2024-08-27 04:13:31,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 04:13:31,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-27 04:13:31,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:31,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-27 04:13:31,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-08-27 04:13:31,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:31,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:31,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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) [2024-08-27 04:13:31,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:31,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:31,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:31,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:31,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:31,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-27 04:13:31,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-27 04:13:31,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:31,806 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)] === [2024-08-27 04:13:31,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:31,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1639354796, now seen corresponding path program 2 times [2024-08-27 04:13:31,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:31,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118529435] [2024-08-27 04:13:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:31,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:32,008 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-08-27 04:13:32,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:32,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118529435] [2024-08-27 04:13:32,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118529435] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:32,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343914808] [2024-08-27 04:13:32,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-27 04:13:32,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:32,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:32,010 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) [2024-08-27 04:13:32,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-27 04:13:32,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-27 04:13:32,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 04:13:32,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-27 04:13:32,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-08-27 04:13:32,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 04:13:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-08-27 04:13:32,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343914808] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 04:13:32,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 04:13:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 7] total 18 [2024-08-27 04:13:32,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982469425] [2024-08-27 04:13:32,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 04:13:32,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-27 04:13:32,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:32,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-27 04:13:32,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-08-27 04:13:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:32,306 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:32,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 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) [2024-08-27 04:13:32,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-27 04:13:32,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-27 04:13:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-27 04:13:32,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-27 04:13:32,847 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 [2024-08-27 04:13:32,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:32,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1881750978, now seen corresponding path program 3 times [2024-08-27 04:13:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:32,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110327912] [2024-08-27 04:13:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-08-27 04:13:33,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:33,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110327912] [2024-08-27 04:13:33,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110327912] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:33,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306347479] [2024-08-27 04:13:33,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-27 04:13:33,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:33,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:33,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 04:13:33,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-27 04:13:33,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-27 04:13:33,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 04:13:33,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-27 04:13:33,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-08-27 04:13:33,396 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 04:13:33,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2024-08-27 04:13:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-08-27 04:13:33,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306347479] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 04:13:33,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 04:13:33,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2024-08-27 04:13:33,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72155101] [2024-08-27 04:13:33,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 04:13:33,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-27 04:13:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 04:13:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-27 04:13:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-08-27 04:13:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:33,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 04:13:33,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 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) [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-27 04:13:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 04:13:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 04:13:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 04:13:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-08-27 04:13:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 04:13:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-27 04:13:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-27 04:13:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 04:13:33,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-27 04:13:33,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:33,797 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-08-27 04:13:33,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 04:13:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash 958648172, now seen corresponding path program 4 times [2024-08-27 04:13:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 04:13:33,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321048885] [2024-08-27 04:13:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 04:13:33,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 04:13:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 04:13:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 3 proven. 86 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-08-27 04:13:37,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 04:13:37,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321048885] [2024-08-27 04:13:37,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321048885] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 04:13:37,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417219296] [2024-08-27 04:13:37,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-27 04:13:37,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 04:13:37,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:13:37,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 04:13:37,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-27 04:13:37,278 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-27 04:13:37,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-27 04:13:37,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 64 conjunts are in the unsatisfiable core [2024-08-27 04:13:37,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 04:13:37,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-08-27 04:13:37,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-08-27 04:13:38,056 INFO L349 Elim1Store]: treesize reduction 229, result has 18.5 percent of original size [2024-08-27 04:13:38,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 28 case distinctions, treesize of input 205 treesize of output 107 [2024-08-27 04:13:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-08-27 04:13:38,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 04:13:40,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-27 04:13:40,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 316923 treesize of output 292513 Killed by 15