./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c --full-output --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/parallel-misc-5.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee 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/parallel-misc-5.wvr.c ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/parallel-misc-5.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.fs.goblint-validation-c091e2e-m [2024-08-13 21:27:10,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 21:27:10,557 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 21:27:10,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 21:27:10,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 21:27:10,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 21:27:10,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 21:27:10,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 21:27:10,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 21:27:10,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 21:27:10,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 21:27:10,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 21:27:10,594 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 21:27:10,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 21:27:10,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 21:27:10,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 21:27:10,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 21:27:10,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 21:27:10,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 21:27:10,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 21:27:10,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 21:27:10,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 21:27:10,599 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 21:27:10,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 21:27:10,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 21:27:10,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 21:27:10,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 21:27:10,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 21:27:10,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 21:27:10,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 21:27:10,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 21:27:10,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 21:27:10,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 21:27:10,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 21:27:10,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 21:27:10,602 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 21:27:10,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 21:27:10,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 21:27:10,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 21:27:10,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 21:27:10,603 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 21:27:10,603 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 21:27:10,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-13 21:27:10,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 21:27:10,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 21:27:10,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 21:27:10,885 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 21:27:10,886 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 21:27:10,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/parallel-misc-5.wvr.yml/witness.yml [2024-08-13 21:27:11,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 21:27:11,016 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 21:27:11,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2024-08-13 21:27:12,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 21:27:12,523 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 21:27:12,524 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-5.wvr.c [2024-08-13 21:27:12,535 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/37cd42be9/5b96b5f259594025aaa657564dd3fe15/FLAG14f44fcf5 [2024-08-13 21:27:12,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/37cd42be9/5b96b5f259594025aaa657564dd3fe15 [2024-08-13 21:27:12,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 21:27:12,906 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 21:27:12,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 21:27:12,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 21:27:12,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 21:27:12,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 09:27:11" (1/2) ... [2024-08-13 21:27:12,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5e7f05 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 09:27:12, skipping insertion in model container [2024-08-13 21:27:12,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 09:27:11" (1/2) ... [2024-08-13 21:27:12,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2880532e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 09:27:12, skipping insertion in model container [2024-08-13 21:27:12,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 09:27:12" (2/2) ... [2024-08-13 21:27:12,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5e7f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:12, skipping insertion in model container [2024-08-13 21:27:12,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 09:27:12" (2/2) ... [2024-08-13 21:27:12,914 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-13 21:27:12,916 INFO L92 edCorrectnessWitness]: Witness did not contain any usable entries. [2024-08-13 21:27:12,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 21:27:13,093 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/parallel-misc-5.wvr.c[3066,3079] [2024-08-13 21:27:13,097 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 21:27:13,103 INFO L202 MainTranslator]: Completed pre-run [2024-08-13 21:27:13,129 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/parallel-misc-5.wvr.c[3066,3079] [2024-08-13 21:27:13,130 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 21:27:13,143 INFO L206 MainTranslator]: Completed translation [2024-08-13 21:27:13,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13 WrapperNode [2024-08-13 21:27:13,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 21:27:13,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 21:27:13,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 21:27:13,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 21:27:13,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,182 INFO L138 Inliner]: procedures = 21, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 135 [2024-08-13 21:27:13,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 21:27:13,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 21:27:13,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 21:27:13,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 21:27:13,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 21:27:13,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 21:27:13,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 21:27:13,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 21:27:13,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (1/1) ... [2024-08-13 21:27:13,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 21:27:13,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:13,256 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) [2024-08-13 21:27:13,263 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 [2024-08-13 21:27:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 21:27:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-08-13 21:27:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-08-13 21:27:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-08-13 21:27:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-08-13 21:27:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-08-13 21:27:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-08-13 21:27:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 21:27:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 21:27:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 21:27:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 21:27:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 21:27:13,293 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-13 21:27:13,381 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 21:27:13,383 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 21:27:13,563 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 21:27:13,563 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 21:27:13,742 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 21:27:13,742 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-08-13 21:27:13,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 09:27:13 BoogieIcfgContainer [2024-08-13 21:27:13,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 21:27:13,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 21:27:13,745 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 21:27:13,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 21:27:13,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 09:27:11" (1/4) ... [2024-08-13 21:27:13,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1805b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 09:27:13, skipping insertion in model container [2024-08-13 21:27:13,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 09:27:12" (2/4) ... [2024-08-13 21:27:13,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1805b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 09:27:13, skipping insertion in model container [2024-08-13 21:27:13,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 09:27:13" (3/4) ... [2024-08-13 21:27:13,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c1805b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 09:27:13, skipping insertion in model container [2024-08-13 21:27:13,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 09:27:13" (4/4) ... [2024-08-13 21:27:13,751 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2024-08-13 21:27:13,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 21:27:13,765 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-13 21:27:13,765 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 21:27:13,825 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-08-13 21:27:13,862 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 21:27:13,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 21:27:13,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:13,867 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) [2024-08-13 21:27:13,868 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 [2024-08-13 21:27:13,898 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 21:27:13,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 21:27:13,918 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;@381d2495, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 21:27:13,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-13 21:27:14,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:14,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:14,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1537040272, now seen corresponding path program 1 times [2024-08-13 21:27:14,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:14,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663513103] [2024-08-13 21:27:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:14,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:27:14,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:14,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663513103] [2024-08-13 21:27:14,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663513103] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 21:27:14,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 21:27:14,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 21:27:14,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14555393] [2024-08-13 21:27:14,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 21:27:14,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 21:27:14,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 21:27:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-13 21:27:14,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:14,530 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:14,531 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) [2024-08-13 21:27:14,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:14,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 21:27:14,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:14,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:14,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1454456136, now seen corresponding path program 1 times [2024-08-13 21:27:14,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:14,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044344573] [2024-08-13 21:27:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:14,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:27:14,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:14,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044344573] [2024-08-13 21:27:14,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044344573] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:14,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736298849] [2024-08-13 21:27:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:14,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:14,920 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) [2024-08-13 21:27:14,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-13 21:27:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:14,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjunts are in the unsatisfiable core [2024-08-13 21:27:14,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:15,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-13 21:27:15,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:27:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:27:15,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736298849] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:27:15,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:27:15,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-08-13 21:27:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372970148] [2024-08-13 21:27:15,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:27:15,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-13 21:27:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-13 21:27:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-08-13 21:27:15,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:15,160 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:15,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 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) [2024-08-13 21:27:15,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:15,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:15,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-13 21:27:15,767 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 [2024-08-13 21:27:15,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:15,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1927137208, now seen corresponding path program 1 times [2024-08-13 21:27:15,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:15,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815646057] [2024-08-13 21:27:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:15,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:27:15,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:15,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815646057] [2024-08-13 21:27:15,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815646057] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:15,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601960188] [2024-08-13 21:27:15,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:15,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:15,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:15,962 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) [2024-08-13 21:27:15,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-13 21:27:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:16,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-13 21:27:16,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:27:16,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:27:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 21:27:16,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601960188] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:27:16,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:27:16,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2024-08-13 21:27:16,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661805269] [2024-08-13 21:27:16,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:27:16,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-13 21:27:16,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:16,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-13 21:27:16,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-08-13 21:27:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:16,248 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:16,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 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) [2024-08-13 21:27:16,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:16,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:16,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:16,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-08-13 21:27:16,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-08-13 21:27:17,175 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 [2024-08-13 21:27:17,176 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:17,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1730733984, now seen corresponding path program 1 times [2024-08-13 21:27:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70033507] [2024-08-13 21:27:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-13 21:27:17,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:17,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70033507] [2024-08-13 21:27:17,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70033507] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:17,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778167600] [2024-08-13 21:27:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:17,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:17,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:17,305 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) [2024-08-13 21:27:17,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-13 21:27:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:17,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-13 21:27:17,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-08-13 21:27:17,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:27:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-13 21:27:17,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778167600] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:27:17,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:27:17,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 5 [2024-08-13 21:27:17,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740506163] [2024-08-13 21:27:17,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:27:17,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 21:27:17,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:17,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 21:27:17,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-08-13 21:27:17,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:17,477 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:17,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 21:27:17,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:17,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:17,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-08-13 21:27:17,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:17,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-13 21:27:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:17,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-13 21:27:17,819 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 [2024-08-13 21:27:17,820 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:17,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:17,820 INFO L85 PathProgramCache]: Analyzing trace with hash 600519336, now seen corresponding path program 2 times [2024-08-13 21:27:17,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:17,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174122093] [2024-08-13 21:27:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:17,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 96 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-13 21:27:18,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:18,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174122093] [2024-08-13 21:27:18,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174122093] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:18,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688037888] [2024-08-13 21:27:18,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 21:27:18,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:18,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:18,283 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) [2024-08-13 21:27:18,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-13 21:27:18,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 21:27:18,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 21:27:18,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-13 21:27:18,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 39 proven. 85 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-13 21:27:18,445 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:27:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 47 proven. 77 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-13 21:27:18,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688037888] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:27:18,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:27:18,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 18 [2024-08-13 21:27:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266924282] [2024-08-13 21:27:18,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:27:18,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-08-13 21:27:18,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:18,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-08-13 21:27:18,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-08-13 21:27:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:18,576 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:18,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 18 states have internal predecessors, (146), 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) [2024-08-13 21:27:18,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:18,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:18,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-13 21:27:18,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:18,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-13 21:27:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-08-13 21:27:19,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-13 21:27:19,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:19,789 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:19,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1887066736, now seen corresponding path program 2 times [2024-08-13 21:27:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:19,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822164689] [2024-08-13 21:27:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 231 proven. 65 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-08-13 21:27:19,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:19,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822164689] [2024-08-13 21:27:19,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822164689] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:19,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937232042] [2024-08-13 21:27:19,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 21:27:19,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:19,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:19,974 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) [2024-08-13 21:27:19,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-13 21:27:20,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 21:27:20,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 21:27:20,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-13 21:27:20,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 235 proven. 71 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-08-13 21:27:20,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:27:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 239 proven. 65 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-08-13 21:27:20,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937232042] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:27:20,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:27:20,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 11 [2024-08-13 21:27:20,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557780421] [2024-08-13 21:27:20,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:27:20,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-08-13 21:27:20,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:20,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-08-13 21:27:20,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=68, Unknown=0, NotChecked=0, Total=132 [2024-08-13 21:27:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:20,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:20,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 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) [2024-08-13 21:27:20,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:20,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:20,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-13 21:27:20,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:20,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2024-08-13 21:27:20,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-13 21:27:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-08-13 21:27:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-13 21:27:20,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-13 21:27:21,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:21,070 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:21,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:21,070 INFO L85 PathProgramCache]: Analyzing trace with hash -181934232, now seen corresponding path program 3 times [2024-08-13 21:27:21,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:21,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318325327] [2024-08-13 21:27:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:21,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 592 proven. 142 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-08-13 21:27:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318325327] [2024-08-13 21:27:21,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318325327] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140172552] [2024-08-13 21:27:21,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-13 21:27:21,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:21,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:21,673 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 21:27:21,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-13 21:27:21,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-08-13 21:27:21,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 21:27:21,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-13 21:27:21,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-08-13 21:27:21,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-13 21:27:21,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140172552] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 21:27:21,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-13 21:27:21,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-08-13 21:27:21,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643746927] [2024-08-13 21:27:21,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 21:27:21,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-13 21:27:21,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:21,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-13 21:27:21,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2024-08-13 21:27:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:21,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:21,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 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) [2024-08-13 21:27:21,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:21,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:21,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-13 21:27:21,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:21,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-08-13 21:27:21,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-13 21:27:21,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-13 21:27:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-08-13 21:27:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-13 21:27:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-13 21:27:22,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-08-13 21:27:22,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-08-13 21:27:22,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-08-13 21:27:22,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 21:27:22,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1965091792, now seen corresponding path program 4 times [2024-08-13 21:27:22,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 21:27:22,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005259107] [2024-08-13 21:27:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 21:27:22,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 21:27:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 21:27:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 298 proven. 142 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-13 21:27:23,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 21:27:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005259107] [2024-08-13 21:27:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005259107] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 21:27:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554758158] [2024-08-13 21:27:23,103 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-08-13 21:27:23,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 21:27:23,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 21:27:23,105 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) [2024-08-13 21:27:23,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-08-13 21:27:23,182 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-08-13 21:27:23,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 21:27:23,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 44 conjunts are in the unsatisfiable core [2024-08-13 21:27:23,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 21:27:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 37 proven. 410 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 21:27:24,090 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 21:27:25,176 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 37 proven. 410 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 21:27:25,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554758158] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 21:27:25,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 21:27:25,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 25] total 64 [2024-08-13 21:27:25,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8646041] [2024-08-13 21:27:25,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 21:27:25,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-08-13 21:27:25,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 21:27:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-08-13 21:27:25,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1206, Invalid=2954, Unknown=0, NotChecked=0, Total=4160 [2024-08-13 21:27:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 21:27:25,189 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 21:27:25,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 4.769230769230769) internal successors, (310), 64 states have internal predecessors, (310), 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) [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-13 21:27:25,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.