./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.2024-08-08_07-59-58.files/mutex-meet-local/popl20-counter-fun.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7bc0c755 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.2024-08-08_07-59-58.files/mutex-meet-local/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-validation-atomicfix-7bc0c75-m [2024-08-23 06:25:30,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-23 06:25:30,350 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-23 06:25:30,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-23 06:25:30,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-23 06:25:30,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-23 06:25:30,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-23 06:25:30,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-23 06:25:30,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-23 06:25:30,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-23 06:25:30,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-23 06:25:30,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-23 06:25:30,387 INFO L153 SettingsManager]: * Use SBE=true [2024-08-23 06:25:30,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-23 06:25:30,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-23 06:25:30,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-23 06:25:30,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-23 06:25:30,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-23 06:25:30,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-23 06:25:30,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-23 06:25:30,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-23 06:25:30,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-23 06:25:30,396 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-23 06:25:30,396 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-23 06:25:30,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-23 06:25:30,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-23 06:25:30,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-23 06:25:30,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-23 06:25:30,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-23 06:25:30,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-23 06:25:30,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 06:25:30,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-23 06:25:30,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-23 06:25:30,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-23 06:25:30,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-23 06:25:30,399 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-23 06:25:30,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-23 06:25:30,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-23 06:25:30,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-23 06:25:30,402 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-23 06:25:30,402 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-23 06:25:30,403 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-23 06:25:30,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-23 06:25:30,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-23 06:25:30,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-23 06:25:30,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-23 06:25:30,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-23 06:25:30,688 INFO L274 PluginConnector]: CDTParser initialized [2024-08-23 06:25:30,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-23 06:25:32,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-23 06:25:32,598 INFO L384 CDTParser]: Found 1 translation units. [2024-08-23 06:25:32,599 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-23 06:25:32,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f5b0fc297/b4dcdcbb774b4ac58313297243185a50/FLAG4de442161 [2024-08-23 06:25:32,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f5b0fc297/b4dcdcbb774b4ac58313297243185a50 [2024-08-23 06:25:32,628 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-23 06:25:32,629 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-23 06:25:32,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/popl20-counter-fun.wvr.yml/witness.yml [2024-08-23 06:25:32,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-23 06:25:32,739 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-23 06:25:32,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-23 06:25:32,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-23 06:25:32,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-23 06:25:32,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 06:25:32" (1/2) ... [2024-08-23 06:25:32,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aac5c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 06:25:32, skipping insertion in model container [2024-08-23 06:25:32,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 06:25:32" (1/2) ... [2024-08-23 06:25:32,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3f2a0ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 06:25:32, skipping insertion in model container [2024-08-23 06:25:32,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 06:25:32" (2/2) ... [2024-08-23 06:25:32,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aac5c39 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:32, skipping insertion in model container [2024-08-23 06:25:32,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 06:25:32" (2/2) ... [2024-08-23 06:25:32,752 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-23 06:25:32,784 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-23 06:25:32,785 INFO L97 edCorrectnessWitness]: Location invariant before [L49-L49] ((((((((((((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) [2024-08-23 06:25:32,785 INFO L97 edCorrectnessWitness]: Location invariant before [L62-L62] ((((((((((((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) [2024-08-23 06:25:32,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-23 06:25:33,000 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] [2024-08-23 06:25:33,011 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 06:25:33,020 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-08-23 06:25:33,082 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] [2024-08-23 06:25:33,085 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-23 06:25:33,103 INFO L206 MainTranslator]: Completed translation [2024-08-23 06:25:33,105 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33 WrapperNode [2024-08-23 06:25:33,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-23 06:25:33,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-23 06:25:33,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-23 06:25:33,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-23 06:25:33,114 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 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,123 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 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,187 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 193 [2024-08-23 06:25:33,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-23 06:25:33,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-23 06:25:33,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-23 06:25:33,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-23 06:25:33,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-23 06:25:33,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-23 06:25:33,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-23 06:25:33,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-23 06:25:33,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (1/1) ... [2024-08-23 06:25:33,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-23 06:25:33,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:33,268 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) [2024-08-23 06:25:33,271 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 [2024-08-23 06:25:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-23 06:25:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-23 06:25:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-23 06:25:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-23 06:25:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-23 06:25:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-23 06:25:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-23 06:25:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-23 06:25:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-23 06:25:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-23 06:25:33,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-23 06:25:33,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-23 06:25:33,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-23 06:25:33,310 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-23 06:25:33,413 INFO L243 CfgBuilder]: Building ICFG [2024-08-23 06:25:33,415 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-23 06:25:33,728 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-23 06:25:33,728 INFO L292 CfgBuilder]: Performing block encoding [2024-08-23 06:25:33,985 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-23 06:25:33,985 INFO L319 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-23 06:25:33,986 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 06:25:33 BoogieIcfgContainer [2024-08-23 06:25:33,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-23 06:25:33,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-23 06:25:33,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-23 06:25:33,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-23 06:25:33,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 06:25:32" (1/4) ... [2024-08-23 06:25:33,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b47b11b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 06:25:33, skipping insertion in model container [2024-08-23 06:25:33,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.08 06:25:32" (2/4) ... [2024-08-23 06:25:33,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b47b11b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 06:25:33, skipping insertion in model container [2024-08-23 06:25:33,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.08 06:25:33" (3/4) ... [2024-08-23 06:25:33,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b47b11b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.08 06:25:33, skipping insertion in model container [2024-08-23 06:25:33,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 06:25:33" (4/4) ... [2024-08-23 06:25:33,994 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-08-23 06:25:34,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-23 06:25:34,014 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-23 06:25:34,015 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-23 06:25:34,068 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-23 06:25:34,110 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 06:25:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 06:25:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:34,116 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) [2024-08-23 06:25:34,120 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 [2024-08-23 06:25:34,156 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 06:25:34,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2024-08-23 06:25:34,177 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;@3ef227f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 06:25:34,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 06:25:34,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:34,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1253015169, now seen corresponding path program 1 times [2024-08-23 06:25:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:34,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745093678] [2024-08-23 06:25:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:35,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:35,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745093678] [2024-08-23 06:25:35,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745093678] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:25:35,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 06:25:35,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-23 06:25:35,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137210682] [2024-08-23 06:25:35,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:25:35,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 06:25:35,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:35,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 06:25:35,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-23 06:25:35,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:35,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:35,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:25:35,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:35,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:35,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-23 06:25:35,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:35,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:35,413 INFO L85 PathProgramCache]: Analyzing trace with hash -989869488, now seen corresponding path program 1 times [2024-08-23 06:25:35,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:35,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127062548] [2024-08-23 06:25:35,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:35,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:36,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:36,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127062548] [2024-08-23 06:25:36,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127062548] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:25:36,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875249072] [2024-08-23 06:25:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:36,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:25:36,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:36,074 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) [2024-08-23 06:25:36,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-23 06:25:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:36,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2024-08-23 06:25:36,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:25:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:36,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:25:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:37,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875249072] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:25:37,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:25:37,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-08-23 06:25:37,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259101007] [2024-08-23 06:25:37,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:25:37,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-23 06:25:37,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:37,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-23 06:25:37,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-08-23 06:25:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:37,123 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:37,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 17 states have internal predecessors, (36), 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) [2024-08-23 06:25:37,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:37,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:37,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-23 06:25:37,655 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 [2024-08-23 06:25:37,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:37,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1691499071, now seen corresponding path program 1 times [2024-08-23 06:25:37,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:37,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583625459] [2024-08-23 06:25:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:37,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:38,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:38,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583625459] [2024-08-23 06:25:38,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583625459] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:25:38,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905145735] [2024-08-23 06:25:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:38,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:25:38,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:38,183 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) [2024-08-23 06:25:38,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-23 06:25:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:38,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 32 conjunts are in the unsatisfiable core [2024-08-23 06:25:38,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:25:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:38,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:25:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:39,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905145735] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:25:39,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:25:39,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-08-23 06:25:39,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97013561] [2024-08-23 06:25:39,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:25:39,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-08-23 06:25:39,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:39,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-08-23 06:25:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=891, Unknown=0, NotChecked=0, Total=1122 [2024-08-23 06:25:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:39,577 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:39,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.5294117647058822) internal successors, (52), 33 states have internal predecessors, (52), 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) [2024-08-23 06:25:39,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:39,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:39,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:40,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-08-23 06:25:40,664 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 [2024-08-23 06:25:40,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:40,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1320194913, now seen corresponding path program 2 times [2024-08-23 06:25:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:40,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745257838] [2024-08-23 06:25:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:41,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:41,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745257838] [2024-08-23 06:25:41,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745257838] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:25:41,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232766710] [2024-08-23 06:25:41,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 06:25:41,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:25:41,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:41,615 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) [2024-08-23 06:25:41,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-23 06:25:41,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-23 06:25:41,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:25:41,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2024-08-23 06:25:41,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:25:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-08-23 06:25:42,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 06:25:42,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232766710] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:25:42,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 06:25:42,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 22 [2024-08-23 06:25:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950810678] [2024-08-23 06:25:42,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:25:42,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 06:25:42,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:42,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 06:25:42,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-08-23 06:25:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:42,104 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:42,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:25:42,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:42,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:42,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:42,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:42,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-23 06:25:42,700 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 [2024-08-23 06:25:42,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:42,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1320237197, now seen corresponding path program 1 times [2024-08-23 06:25:42,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:42,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452594746] [2024-08-23 06:25:42,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:42,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-08-23 06:25:42,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:42,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452594746] [2024-08-23 06:25:42,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452594746] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:25:42,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 06:25:42,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 06:25:42,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525991172] [2024-08-23 06:25:42,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:25:42,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-23 06:25:42,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:42,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-23 06:25:42,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-23 06:25:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:42,795 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:42,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:25:42,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:42,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:42,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:42,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:42,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:42,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 06:25:42,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-23 06:25:42,918 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:42,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash -396390977, now seen corresponding path program 1 times [2024-08-23 06:25:42,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:42,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751463906] [2024-08-23 06:25:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:43,788 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:43,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:43,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751463906] [2024-08-23 06:25:43,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751463906] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:25:43,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741721584] [2024-08-23 06:25:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:43,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:25:43,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:43,797 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) [2024-08-23 06:25:43,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-23 06:25:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:43,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 44 conjunts are in the unsatisfiable core [2024-08-23 06:25:43,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:25:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:44,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:25:46,222 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:46,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741721584] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:25:46,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:25:46,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 50 [2024-08-23 06:25:46,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632715963] [2024-08-23 06:25:46,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:25:46,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-08-23 06:25:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:46,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-08-23 06:25:46,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=2134, Unknown=0, NotChecked=0, Total=2652 [2024-08-23 06:25:46,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:46,227 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:46,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 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) [2024-08-23 06:25:46,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:46,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:46,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:46,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:46,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 06:25:46,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 06:25:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-08-23 06:25:48,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-08-23 06:25:49,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-08-23 06:25:49,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:49,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:49,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1201197311, now seen corresponding path program 2 times [2024-08-23 06:25:49,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:49,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872477413] [2024-08-23 06:25:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:49,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:50,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:50,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872477413] [2024-08-23 06:25:50,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872477413] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:25:50,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826548326] [2024-08-23 06:25:50,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 06:25:50,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:25:50,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:50,762 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) [2024-08-23 06:25:50,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-23 06:25:50,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-23 06:25:50,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:25:50,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 20 conjunts are in the unsatisfiable core [2024-08-23 06:25:50,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:25:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-08-23 06:25:51,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 06:25:51,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826548326] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:25:51,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 06:25:51,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [29] total 33 [2024-08-23 06:25:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594413051] [2024-08-23 06:25:51,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:25:51,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 06:25:51,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:51,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 06:25:51,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1107, Unknown=0, NotChecked=0, Total=1190 [2024-08-23 06:25:51,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:51,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:51,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-08-23 06:25:51,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:25:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-08-23 06:25:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:25:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-23 06:25:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-08-23 06:25:56,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:25:56,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-08-23 06:25:56,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-23 06:25:56,945 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 [2024-08-23 06:25:56,956 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-08-23 06:25:56,962 INFO L308 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork1 was SAFE (1/3) [2024-08-23 06:25:56,969 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 06:25:56,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 06:25:56,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:56,971 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 06:25:56,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-08-23 06:25:56,976 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 06:25:56,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2024-08-23 06:25:56,978 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;@3ef227f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 06:25:56,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-23 06:25:57,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:57,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:57,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1486962657, now seen corresponding path program 1 times [2024-08-23 06:25:57,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:57,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785627158] [2024-08-23 06:25:57,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:57,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:57,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785627158] [2024-08-23 06:25:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785627158] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:25:57,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 06:25:57,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-23 06:25:57,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825867924] [2024-08-23 06:25:57,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:25:57,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-23 06:25:57,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:57,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-23 06:25:57,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-08-23 06:25:57,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:57,502 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:57,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:25:57,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:57,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-23 06:25:57,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:57,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:57,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1247956050, now seen corresponding path program 1 times [2024-08-23 06:25:57,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:57,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552217666] [2024-08-23 06:25:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:57,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:58,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:25:58,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552217666] [2024-08-23 06:25:58,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552217666] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:25:58,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663185556] [2024-08-23 06:25:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:58,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:25:58,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:25:58,293 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) [2024-08-23 06:25:58,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-23 06:25:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:25:58,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 24 conjunts are in the unsatisfiable core [2024-08-23 06:25:58,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:25:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:58,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:25:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:25:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663185556] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:25:59,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:25:59,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-08-23 06:25:59,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247348592] [2024-08-23 06:25:59,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:25:59,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-23 06:25:59,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:25:59,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-23 06:25:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-08-23 06:25:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:59,325 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:25:59,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.0) internal successors, (34), 17 states have internal predecessors, (34), 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) [2024-08-23 06:25:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:25:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:25:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:25:59,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-23 06:25:59,800 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 [2024-08-23 06:25:59,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:25:59,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:25:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash -716843169, now seen corresponding path program 1 times [2024-08-23 06:25:59,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:25:59,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505740574] [2024-08-23 06:25:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:25:59,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:25:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:26:00,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:00,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505740574] [2024-08-23 06:26:00,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505740574] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:00,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943479943] [2024-08-23 06:26:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:00,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:00,209 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) [2024-08-23 06:26:00,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-23 06:26:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:00,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 32 conjunts are in the unsatisfiable core [2024-08-23 06:26:00,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:26:00,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:26:01,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943479943] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:26:01,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:26:01,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2024-08-23 06:26:01,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877776806] [2024-08-23 06:26:01,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:26:01,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-08-23 06:26:01,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:01,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-08-23 06:26:01,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=891, Unknown=0, NotChecked=0, Total=1122 [2024-08-23 06:26:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:01,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:01,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 33 states have internal predecessors, (50), 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) [2024-08-23 06:26:01,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:01,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:26:01,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:26:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:26:02,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-08-23 06:26:02,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-08-23 06:26:02,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-08-23 06:26:02,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -396391169, now seen corresponding path program 2 times [2024-08-23 06:26:02,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:02,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65441698] [2024-08-23 06:26:02,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:02,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:26:03,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:03,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65441698] [2024-08-23 06:26:03,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65441698] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:03,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326997358] [2024-08-23 06:26:03,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 06:26:03,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:03,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:03,467 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:03,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-23 06:26:03,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-08-23 06:26:03,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:26:03,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 20 conjunts are in the unsatisfiable core [2024-08-23 06:26:03,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:03,865 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-08-23 06:26:03,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-23 06:26:03,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326997358] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:26:03,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-23 06:26:03,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 21 [2024-08-23 06:26:03,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537409768] [2024-08-23 06:26:03,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:26:03,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 06:26:03,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 06:26:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-08-23 06:26:03,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:03,868 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:03,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:26:03,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:03,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-08-23 06:26:03,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:26:03,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:26:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-23 06:26:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-23 06:26:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-08-23 06:26:06,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-08-23 06:26:06,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-08-23 06:26:06,492 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-08-23 06:26:06,493 INFO L308 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE (2/3) [2024-08-23 06:26:06,494 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 06:26:06,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-23 06:26:06,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:06,496 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-23 06:26:06,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-08-23 06:26:06,501 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-23 06:26:06,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-23 06:26:06,502 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;@3ef227f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-23 06:26:06,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-23 06:26:06,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:06,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:06,559 INFO L85 PathProgramCache]: Analyzing trace with hash 122227007, now seen corresponding path program 1 times [2024-08-23 06:26:06,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:06,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682306795] [2024-08-23 06:26:06,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:06,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:26:06,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:06,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682306795] [2024-08-23 06:26:06,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682306795] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:26:06,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 06:26:06,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-23 06:26:06,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258923750] [2024-08-23 06:26:06,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:26:06,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-23 06:26:06,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:06,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-23 06:26:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-23 06:26:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,627 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:06,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:26:06,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:06,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-08-23 06:26:06,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:06,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:06,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1283613191, now seen corresponding path program 1 times [2024-08-23 06:26:06,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:06,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754319144] [2024-08-23 06:26:06,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:06,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 06:26:06,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:06,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754319144] [2024-08-23 06:26:06,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754319144] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:26:06,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 06:26:06,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-23 06:26:06,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862607797] [2024-08-23 06:26:06,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:26:06,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 06:26:06,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:06,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 06:26:06,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 06:26:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:06,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-08-23 06:26:06,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:06,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:06,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:06,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-23 06:26:06,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:06,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:06,847 INFO L85 PathProgramCache]: Analyzing trace with hash -347788598, now seen corresponding path program 1 times [2024-08-23 06:26:06,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:06,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954052676] [2024-08-23 06:26:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:06,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 06:26:06,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:06,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954052676] [2024-08-23 06:26:06,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954052676] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-23 06:26:06,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-23 06:26:06,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-23 06:26:06,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568196297] [2024-08-23 06:26:06,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-23 06:26:06,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-23 06:26:06,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-23 06:26:06,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-23 06:26:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,942 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:06,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-23 06:26:06,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:06,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:06,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:06,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-23 06:26:06,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:06,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash 773691372, now seen corresponding path program 1 times [2024-08-23 06:26:06,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:06,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643390015] [2024-08-23 06:26:06,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:06,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 06:26:07,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:07,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643390015] [2024-08-23 06:26:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643390015] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649160182] [2024-08-23 06:26:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:07,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:07,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:07,125 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:07,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-23 06:26:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:07,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-23 06:26:07,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 06:26:07,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 06:26:07,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649160182] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:26:07,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:26:07,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-08-23 06:26:07,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039933336] [2024-08-23 06:26:07,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:26:07,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-23 06:26:07,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:07,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-23 06:26:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-08-23 06:26:07,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:07,362 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:07,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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) [2024-08-23 06:26:07,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:07,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:07,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:07,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:07,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:07,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-23 06:26:07,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-08-23 06:26:07,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:07,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:07,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2058941152, now seen corresponding path program 2 times [2024-08-23 06:26:07,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:07,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636071225] [2024-08-23 06:26:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 06:26:08,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:08,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636071225] [2024-08-23 06:26:08,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636071225] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:08,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082209430] [2024-08-23 06:26:08,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-23 06:26:08,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:08,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:08,025 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:08,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-23 06:26:08,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-23 06:26:08,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:26:08,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-23 06:26:08,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-23 06:26:08,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 06:26:08,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082209430] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:26:08,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:26:08,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 7] total 18 [2024-08-23 06:26:08,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114581034] [2024-08-23 06:26:08,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:26:08,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-23 06:26:08,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:08,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-23 06:26:08,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-08-23 06:26:08,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:08,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:08,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 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) [2024-08-23 06:26:08,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:08,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:08,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:08,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:08,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:08,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-08-23 06:26:09,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-08-23 06:26:09,132 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:09,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1569267474, now seen corresponding path program 3 times [2024-08-23 06:26:09,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:09,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930588110] [2024-08-23 06:26:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:09,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-08-23 06:26:09,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:09,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930588110] [2024-08-23 06:26:09,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930588110] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:09,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228743007] [2024-08-23 06:26:09,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-23 06:26:09,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:09,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:09,514 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:09,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-23 06:26:09,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-23 06:26:09,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:26:09,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-23 06:26:09,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-23 06:26:09,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:09,762 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 [2024-08-23 06:26:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-23 06:26:09,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228743007] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:26:09,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:26:09,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2024-08-23 06:26:09,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14684921] [2024-08-23 06:26:09,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:26:09,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-23 06:26:09,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:09,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-23 06:26:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-08-23 06:26:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:09,838 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:09,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2024-08-23 06:26:09,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:09,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:09,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:10,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:26:10,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-23 06:26:10,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-08-23 06:26:10,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:10,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1406801776, now seen corresponding path program 4 times [2024-08-23 06:26:10,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:10,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765435638] [2024-08-23 06:26:10,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:10,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-23 06:26:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:12,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765435638] [2024-08-23 06:26:12,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765435638] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:12,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574254773] [2024-08-23 06:26:12,017 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-23 06:26:12,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:12,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:12,020 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:12,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-08-23 06:26:12,185 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-23 06:26:12,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:26:12,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 34 conjunts are in the unsatisfiable core [2024-08-23 06:26:12,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:12,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-08-23 06:26:12,246 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 [2024-08-23 06:26:12,282 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-08-23 06:26:12,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-08-23 06:26:12,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-08-23 06:26:12,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-08-23 06:26:12,511 INFO L349 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2024-08-23 06:26:12,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 19 [2024-08-23 06:26:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 17 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-08-23 06:26:12,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:13,689 WARN L854 $PredicateComparison]: unable to prove that (forall ((~counter~0 Int) (v_~counter~0_184 Int) (v_ArrVal_483 (Array Int Int)) (~f_inv~0.base Int) (v_~counter~0_185 Int) (~f_inv~0.offset Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_483))) (let ((.cse1 (select .cse3 c_~f~0.base))) (let ((.cse2 (select (select .cse3 ~f_inv~0.base) (+ (* ~counter~0 4) ~f_inv~0.offset))) (.cse0 (select .cse1 (+ (* v_~counter~0_184 4) c_~f~0.offset)))) (or (< .cse0 0) (< v_~counter~0_184 (select .cse1 (+ c_~f~0.offset (* v_~counter~0_185 4)))) (< v_~counter~0_184 0) (< c_~n~0 (+ .cse2 1)) (< .cse2 v_~counter~0_185) (= .cse0 0) (< v_~counter~0_185 0) (< c_~n~0 (+ v_~counter~0_184 1))))))) is different from false [2024-08-23 06:26:15,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 06:26:15,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 85 [2024-08-23 06:26:15,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 06:26:15,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 156 [2024-08-23 06:26:15,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 06:26:15,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 82 [2024-08-23 06:26:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 39 trivial. 2 not checked. [2024-08-23 06:26:17,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574254773] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:26:17,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:26:17,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 23 [2024-08-23 06:26:17,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205879603] [2024-08-23 06:26:17,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:26:17,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-08-23 06:26:17,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:17,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-08-23 06:26:17,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=415, Unknown=2, NotChecked=42, Total=552 [2024-08-23 06:26:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:17,105 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:17,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.6666666666666665) internal successors, (88), 23 states have internal predecessors, (88), 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) [2024-08-23 06:26:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:17,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:26:17,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:26:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-23 06:26:17,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-08-23 06:26:17,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-08-23 06:26:17,704 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:17,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash 343429729, now seen corresponding path program 5 times [2024-08-23 06:26:17,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:17,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971522153] [2024-08-23 06:26:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:17,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-23 06:26:24,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:24,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971522153] [2024-08-23 06:26:24,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971522153] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:24,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874724957] [2024-08-23 06:26:24,070 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-08-23 06:26:24,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:24,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:24,072 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:24,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-23 06:26:24,278 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-08-23 06:26:24,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:26:24,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 41 conjunts are in the unsatisfiable core [2024-08-23 06:26:24,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:26,019 INFO L349 Elim1Store]: treesize reduction 115, result has 54.5 percent of original size [2024-08-23 06:26:26,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 147 treesize of output 185 [2024-08-23 06:26:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 5 proven. 55 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-23 06:26:26,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:28,362 INFO L349 Elim1Store]: treesize reduction 434, result has 29.0 percent of original size [2024-08-23 06:26:28,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 250 treesize of output 274 [2024-08-23 06:26:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 14 proven. 56 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-23 06:26:28,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874724957] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-23 06:26:28,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-23 06:26:28,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 12] total 36 [2024-08-23 06:26:28,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119780911] [2024-08-23 06:26:28,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-23 06:26:28,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-08-23 06:26:28,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-23 06:26:28,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-08-23 06:26:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1174, Unknown=0, NotChecked=0, Total=1332 [2024-08-23 06:26:28,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:28,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-23 06:26:28,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.2432432432432434) internal successors, (120), 36 states have internal predecessors, (120), 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) [2024-08-23 06:26:28,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:28,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:28,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:28,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:28,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:28,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:26:28,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-23 06:26:28,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-23 06:26:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-23 06:26:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-23 06:26:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-23 06:26:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-08-23 06:26:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-23 06:26:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-23 06:26:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-23 06:26:30,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-08-23 06:26:30,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:30,246 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-23 06:26:30,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-23 06:26:30,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2013066556, now seen corresponding path program 6 times [2024-08-23 06:26:30,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-23 06:26:30,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259433831] [2024-08-23 06:26:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-23 06:26:30,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-23 06:26:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-23 06:26:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-23 06:26:38,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-23 06:26:38,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259433831] [2024-08-23 06:26:38,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259433831] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-23 06:26:38,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086926928] [2024-08-23 06:26:38,861 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-08-23 06:26:38,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-23 06:26:38,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-23 06:26:38,863 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-23 06:26:38,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-23 06:26:39,283 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-08-23 06:26:39,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-23 06:26:39,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 84 conjunts are in the unsatisfiable core [2024-08-23 06:26:39,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-23 06:26:39,442 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 [2024-08-23 06:26:41,109 INFO L349 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2024-08-23 06:26:41,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 86 [2024-08-23 06:26:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 61 proven. 71 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-08-23 06:26:41,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-23 06:26:47,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-08-23 06:26:47,938 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 61501 treesize of output 55441 [2024-08-23 06:26:49,964 INFO L349 Elim1Store]: treesize reduction 100, result has 29.1 percent of original size [2024-08-23 06:26:49,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 1426 treesize of output 398 Killed by 15