./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/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-ghost/popl20-counter-fun.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-validation-atomicfix-7bc0c75-m [2024-08-22 19:50:14,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-22 19:50:14,266 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-22 19:50:14,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-22 19:50:14,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-22 19:50:14,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-22 19:50:14,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-22 19:50:14,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-22 19:50:14,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-22 19:50:14,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-22 19:50:14,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-22 19:50:14,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-22 19:50:14,298 INFO L153 SettingsManager]: * Use SBE=true [2024-08-22 19:50:14,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-22 19:50:14,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-22 19:50:14,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-22 19:50:14,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-22 19:50:14,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-22 19:50:14,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-22 19:50:14,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-22 19:50:14,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-22 19:50:14,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-22 19:50:14,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-22 19:50:14,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-22 19:50:14,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-22 19:50:14,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-22 19:50:14,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-22 19:50:14,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-22 19:50:14,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-22 19:50:14,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-22 19:50:14,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 19:50:14,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-22 19:50:14,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-22 19:50:14,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-22 19:50:14,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-22 19:50:14,312 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-22 19:50:14,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-22 19:50:14,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-22 19:50:14,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-22 19:50:14,313 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-22 19:50:14,314 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-22 19:50:14,314 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-22 19:50:14,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-22 19:50:14,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-22 19:50:14,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-22 19:50:14,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-22 19:50:14,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-22 19:50:14,614 INFO L274 PluginConnector]: CDTParser initialized [2024-08-22 19:50:14,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-22 19:50:16,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-22 19:50:16,260 INFO L384 CDTParser]: Found 1 translation units. [2024-08-22 19:50:16,260 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-fun.wvr.c [2024-08-22 19:50:16,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d3e123c2/72092a07554947228b7c289280d18a61/FLAG3a860d5d9 [2024-08-22 19:50:16,286 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d3e123c2/72092a07554947228b7c289280d18a61 [2024-08-22 19:50:16,289 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-22 19:50:16,290 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-22 19:50:16,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-ghost/popl20-counter-fun.wvr.yml/witness.yml [2024-08-22 19:50:16,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-22 19:50:16,382 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-22 19:50:16,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-22 19:50:16,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-22 19:50:16,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-22 19:50:16,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:50:16" (1/2) ... [2024-08-22 19:50:16,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37139e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:16, skipping insertion in model container [2024-08-22 19:50:16,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:50:16" (1/2) ... [2024-08-22 19:50:16,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1bceb355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:16, skipping insertion in model container [2024-08-22 19:50:16,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 07:50:16" (2/2) ... [2024-08-22 19:50:16,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37139e1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16, skipping insertion in model container [2024-08-22 19:50:16,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 07:50:16" (2/2) ... [2024-08-22 19:50:16,395 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-22 19:50:16,408 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-22 19:50:16,409 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-22 19:50:16,409 INFO L106 edCorrectnessWitness]: ghost_update [L82-L82] multithreaded = 1; [2024-08-22 19:50:16,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-22 19:50:16,630 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] [2024-08-22 19:50:16,641 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 19:50:16,651 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-08-22 19:50:16,711 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] [2024-08-22 19:50:16,718 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-22 19:50:16,754 INFO L206 MainTranslator]: Completed translation [2024-08-22 19:50:16,754 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16 WrapperNode [2024-08-22 19:50:16,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-22 19:50:16,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-22 19:50:16,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-22 19:50:16,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-22 19:50:16,765 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 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,775 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 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,816 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 194 [2024-08-22 19:50:16,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-22 19:50:16,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-22 19:50:16,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-22 19:50:16,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-22 19:50:16,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-22 19:50:16,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-22 19:50:16,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-22 19:50:16,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-22 19:50:16,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (1/1) ... [2024-08-22 19:50:16,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-22 19:50:16,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 19:50:16,922 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) [2024-08-22 19:50:16,925 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 [2024-08-22 19:50:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-22 19:50:16,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-22 19:50:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-22 19:50:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-22 19:50:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-22 19:50:16,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-22 19:50:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-22 19:50:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-22 19:50:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-22 19:50:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-22 19:50:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-22 19:50:16,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-22 19:50:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-22 19:50:16,969 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-22 19:50:17,070 INFO L243 CfgBuilder]: Building ICFG [2024-08-22 19:50:17,072 INFO L269 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-22 19:50:17,371 INFO L288 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-22 19:50:17,371 INFO L292 CfgBuilder]: Performing block encoding [2024-08-22 19:50:17,643 INFO L314 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-22 19:50:17,644 INFO L319 CfgBuilder]: Removed 4 assume(true) statements. [2024-08-22 19:50:17,644 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:50:17 BoogieIcfgContainer [2024-08-22 19:50:17,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-22 19:50:17,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-22 19:50:17,649 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-22 19:50:17,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-22 19:50:17,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:50:16" (1/4) ... [2024-08-22 19:50:17,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d78419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:50:17, skipping insertion in model container [2024-08-22 19:50:17,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.08 07:50:16" (2/4) ... [2024-08-22 19:50:17,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d78419 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 07:50:17, skipping insertion in model container [2024-08-22 19:50:17,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.08 07:50:16" (3/4) ... [2024-08-22 19:50:17,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d78419 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.08 07:50:17, skipping insertion in model container [2024-08-22 19:50:17,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:50:17" (4/4) ... [2024-08-22 19:50:17,658 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-fun.wvr.c [2024-08-22 19:50:17,680 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-22 19:50:17,681 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-22 19:50:17,681 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-22 19:50:17,730 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-22 19:50:17,778 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 19:50:17,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-22 19:50:17,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 19:50:17,781 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) [2024-08-22 19:50:17,783 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 [2024-08-22 19:50:17,814 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-22 19:50:17,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-22 19:50:17,836 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;@22cbfdb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-22 19:50:17,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-22 19:50:17,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:17,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash 187952669, now seen corresponding path program 1 times [2024-08-22 19:50:17,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:17,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651947480] [2024-08-22 19:50:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:17,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:18,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-22 19:50:18,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:18,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651947480] [2024-08-22 19:50:18,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651947480] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 19:50:18,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 19:50:18,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-22 19:50:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397892510] [2024-08-22 19:50:18,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 19:50:18,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-22 19:50:18,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 19:50:18,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-22 19:50:18,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-22 19:50:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:18,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 19:50:18,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-08-22 19:50:18,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:18,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-22 19:50:18,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:18,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1412384232, now seen corresponding path program 1 times [2024-08-22 19:50:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300208713] [2024-08-22 19:50:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:18,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 19:50:18,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:18,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300208713] [2024-08-22 19:50:18,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300208713] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 19:50:18,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 19:50:18,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-22 19:50:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776666699] [2024-08-22 19:50:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 19:50:18,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-22 19:50:18,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 19:50:18,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-22 19:50:18,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-22 19:50:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:18,941 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 19:50:18,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-22 19:50:18,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:18,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:19,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-22 19:50:19,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:19,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1183267092, now seen corresponding path program 1 times [2024-08-22 19:50:19,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354030453] [2024-08-22 19:50:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:19,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-22 19:50:19,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:19,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354030453] [2024-08-22 19:50:19,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354030453] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-22 19:50:19,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-22 19:50:19,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-22 19:50:19,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848748964] [2024-08-22 19:50:19,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-22 19:50:19,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-22 19:50:19,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 19:50:19,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-22 19:50:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-22 19:50:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:19,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 19:50:19,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-08-22 19:50:19,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:19,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:19,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:19,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:19,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-22 19:50:19,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:19,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:19,306 INFO L85 PathProgramCache]: Analyzing trace with hash -653832650, now seen corresponding path program 1 times [2024-08-22 19:50:19,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:19,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793458490] [2024-08-22 19:50:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:19,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-22 19:50:19,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:19,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793458490] [2024-08-22 19:50:19,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793458490] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 19:50:19,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177437670] [2024-08-22 19:50:19,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:19,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:19,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 19:50:19,467 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) [2024-08-22 19:50:19,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-22 19:50:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:19,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-22 19:50:19,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 19:50:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-22 19:50:19,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 19:50:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-22 19:50:19,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177437670] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 19:50:19,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 19:50:19,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-08-22 19:50:19,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688407691] [2024-08-22 19:50:19,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 19:50:19,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-22 19:50:19,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 19:50:19,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-22 19:50:19,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-08-22 19:50:19,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:19,833 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 19:50:19,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 13 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) [2024-08-22 19:50:19,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:19,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:19,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:19,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-22 19:50:20,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-22 19:50:20,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:20,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:20,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:20,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1646203732, now seen corresponding path program 2 times [2024-08-22 19:50:20,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:20,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140301160] [2024-08-22 19:50:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:20,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-08-22 19:50:20,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:20,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140301160] [2024-08-22 19:50:20,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140301160] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 19:50:20,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533087085] [2024-08-22 19:50:20,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-22 19:50:20,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:20,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 19:50:20,626 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) [2024-08-22 19:50:20,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-22 19:50:20,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-22 19:50:20,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 19:50:20,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjunts are in the unsatisfiable core [2024-08-22 19:50:20,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 19:50:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-22 19:50:20,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 19:50:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-08-22 19:50:21,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533087085] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 19:50:21,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 19:50:21,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 7] total 18 [2024-08-22 19:50:21,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410358767] [2024-08-22 19:50:21,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 19:50:21,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-22 19:50:21,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 19:50:21,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-22 19:50:21,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-08-22 19:50:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:21,081 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 19:50:21,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 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) [2024-08-22 19:50:21,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:21,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:21,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:21,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-22 19:50:21,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-22 19:50:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-22 19:50:21,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-22 19:50:21,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:21,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:21,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:21,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1253519530, now seen corresponding path program 3 times [2024-08-22 19:50:21,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:21,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041792534] [2024-08-22 19:50:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:21,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-08-22 19:50:22,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:22,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041792534] [2024-08-22 19:50:22,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041792534] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 19:50:22,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593400417] [2024-08-22 19:50:22,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-22 19:50:22,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:22,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 19:50:22,281 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) [2024-08-22 19:50:22,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-22 19:50:22,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-22 19:50:22,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 19:50:22,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 11 conjunts are in the unsatisfiable core [2024-08-22 19:50:22,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 19:50:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-22 19:50:22,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 19:50:22,538 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 [2024-08-22 19:50:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-08-22 19:50:22,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593400417] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-22 19:50:22,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-22 19:50:22,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2024-08-22 19:50:22,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032038331] [2024-08-22 19:50:22,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-22 19:50:22,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-08-22 19:50:22,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-22 19:50:22,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-08-22 19:50:22,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-08-22 19:50:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:22,639 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-22 19:50:22,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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) [2024-08-22 19:50:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-08-22 19:50:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-08-22 19:50:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-22 19:50:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-22 19:50:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-08-22 19:50:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-22 19:50:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-22 19:50:22,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-22 19:50:22,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:22,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-22 19:50:22,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-22 19:50:22,954 INFO L85 PathProgramCache]: Analyzing trace with hash -974338956, now seen corresponding path program 4 times [2024-08-22 19:50:22,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-22 19:50:22,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397583466] [2024-08-22 19:50:22,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-22 19:50:22,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-22 19:50:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-22 19:50:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-08-22 19:50:25,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-22 19:50:25,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397583466] [2024-08-22 19:50:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397583466] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-22 19:50:25,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976450600] [2024-08-22 19:50:25,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-22 19:50:25,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-22 19:50:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-22 19:50:25,388 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) [2024-08-22 19:50:25,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-22 19:50:25,521 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-22 19:50:25,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-22 19:50:25,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 58 conjunts are in the unsatisfiable core [2024-08-22 19:50:25,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-22 19:50:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 15 proven. 54 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-22 19:50:26,596 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-22 19:50:29,282 INFO L349 Elim1Store]: treesize reduction 30, result has 94.0 percent of original size [2024-08-22 19:50:29,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 529 treesize of output 587 Killed by 15