./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-lit/sssc12.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/sssc12.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/pthread-lit/sssc12.i ./goblint.2024-08-08_07-59-58.files/mutex-meet-local/sssc12.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-13 23:39:55,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-13 23:39:55,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-13 23:39:55,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-13 23:39:55,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-13 23:39:55,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-13 23:39:55,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-13 23:39:55,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-13 23:39:55,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-13 23:39:55,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-13 23:39:55,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-13 23:39:55,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-13 23:39:55,307 INFO L153 SettingsManager]: * Use SBE=true [2024-08-13 23:39:55,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-13 23:39:55,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-13 23:39:55,308 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-13 23:39:55,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-13 23:39:55,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-13 23:39:55,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-13 23:39:55,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-13 23:39:55,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-13 23:39:55,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-13 23:39:55,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-13 23:39:55,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-13 23:39:55,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-13 23:39:55,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-13 23:39:55,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-13 23:39:55,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-13 23:39:55,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-13 23:39:55,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-13 23:39:55,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 23:39:55,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-13 23:39:55,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-13 23:39:55,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-13 23:39:55,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-13 23:39:55,314 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-13 23:39:55,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-13 23:39:55,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-13 23:39:55,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-13 23:39:55,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-13 23:39:55,318 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-13 23:39:55,318 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-13 23:39:55,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-13 23:39:55,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-13 23:39:55,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-13 23:39:55,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-13 23:39:55,548 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-13 23:39:55,549 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-13 23:39:55,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/mutex-meet-local/sssc12.yml/witness.yml [2024-08-13 23:39:55,655 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-13 23:39:55,655 INFO L274 PluginConnector]: CDTParser initialized [2024-08-13 23:39:55,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i [2024-08-13 23:39:57,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-13 23:39:57,284 INFO L384 CDTParser]: Found 1 translation units. [2024-08-13 23:39:57,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i [2024-08-13 23:39:57,299 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/61b2a5408/262d010b64c44bf1a498db3064730f10/FLAG33652acaa [2024-08-13 23:39:57,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/61b2a5408/262d010b64c44bf1a498db3064730f10 [2024-08-13 23:39:57,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-13 23:39:57,314 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-13 23:39:57,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-13 23:39:57,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-13 23:39:57,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-13 23:39:57,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 11:39:55" (1/2) ... [2024-08-13 23:39:57,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12880b61 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 11:39:57, skipping insertion in model container [2024-08-13 23:39:57,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 11:39:55" (1/2) ... [2024-08-13 23:39:57,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ae786fa and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.08 11:39:57, skipping insertion in model container [2024-08-13 23:39:57,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 11:39:57" (2/2) ... [2024-08-13 23:39:57,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12880b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57, skipping insertion in model container [2024-08-13 23:39:57,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 11:39:57" (2/2) ... [2024-08-13 23:39:57,325 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-13 23:39:57,371 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-13 23:39:57,372 INFO L97 edCorrectnessWitness]: Location invariant before [L1011-L1011] ((2147483647LL + (long long )len) + (long long )lock >= 0LL) && ((2147483648LL + (long long )len) - (long long )lock >= 0LL) [2024-08-13 23:39:57,373 INFO L97 edCorrectnessWitness]: Location invariant before [L1017-L1017] ((2147483647LL + (long long )len) + (long long )lock >= 0LL) && ((2147483648LL + (long long )len) - (long long )lock >= 0LL) [2024-08-13 23:39:57,422 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-13 23:39:57,726 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i[46865,46878] [2024-08-13 23:39:57,739 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 23:39:57,746 INFO L202 MainTranslator]: Completed pre-run [2024-08-13 23:39:57,786 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i[46865,46878] Start Parsing Local Start Parsing Local [2024-08-13 23:39:57,817 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-13 23:39:57,856 INFO L206 MainTranslator]: Completed translation [2024-08-13 23:39:57,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57 WrapperNode [2024-08-13 23:39:57,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-13 23:39:57,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-13 23:39:57,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-13 23:39:57,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-13 23:39:57,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,892 INFO L138 Inliner]: procedures = 274, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80 [2024-08-13 23:39:57,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-13 23:39:57,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-13 23:39:57,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-13 23:39:57,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-13 23:39:57,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-13 23:39:57,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-13 23:39:57,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-13 23:39:57,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-13 23:39:57,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (1/1) ... [2024-08-13 23:39:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-13 23:39:57,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:39:57,938 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 23:39:57,940 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 23:39:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-13 23:39:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-08-13 23:39:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-08-13 23:39:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-13 23:39:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-13 23:39:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-13 23:39:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-13 23:39:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-13 23:39:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-13 23:39:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-13 23:39:57,969 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 23:39:58,069 INFO L244 CfgBuilder]: Building ICFG [2024-08-13 23:39:58,071 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-13 23:39:58,175 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-13 23:39:58,176 INFO L293 CfgBuilder]: Performing block encoding [2024-08-13 23:39:58,265 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-13 23:39:58,266 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-08-13 23:39:58,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 11:39:58 BoogieIcfgContainer [2024-08-13 23:39:58,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-13 23:39:58,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-13 23:39:58,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-13 23:39:58,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-13 23:39:58,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.08 11:39:55" (1/4) ... [2024-08-13 23:39:58,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4650b923 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.08 11:39:58, skipping insertion in model container [2024-08-13 23:39:58,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 11:39:57" (2/4) ... [2024-08-13 23:39:58,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4650b923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 11:39:58, skipping insertion in model container [2024-08-13 23:39:58,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 11:39:57" (3/4) ... [2024-08-13 23:39:58,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4650b923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 11:39:58, skipping insertion in model container [2024-08-13 23:39:58,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 11:39:58" (4/4) ... [2024-08-13 23:39:58,274 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12.i [2024-08-13 23:39:58,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-13 23:39:58,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-13 23:39:58,290 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-13 23:39:58,323 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 23:39:58,351 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:39:58,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:39:58,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:39:58,354 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 23:39:58,357 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 23:39:58,388 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:39:58,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 23:39:58,402 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:39:58,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-13 23:39:58,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:39:58,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash -267123847, now seen corresponding path program 1 times [2024-08-13 23:39:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:58,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939360696] [2024-08-13 23:39:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:58,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:58,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939360696] [2024-08-13 23:39:58,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939360696] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:58,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:58,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:39:58,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60870771] [2024-08-13 23:39:58,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:58,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:39:58,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:58,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:39:58,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:39:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:58,769 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:58,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:39:58,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:58,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-13 23:39:58,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:39:58,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:58,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1041508951, now seen corresponding path program 1 times [2024-08-13 23:39:58,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:58,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830074580] [2024-08-13 23:39:58,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:58,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:58,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:58,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:58,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830074580] [2024-08-13 23:39:58,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830074580] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:58,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:58,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:39:58,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642828273] [2024-08-13 23:39:58,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:58,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:39:58,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:58,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:39:58,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:39:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:58,885 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:58,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:39:58,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:58,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:58,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-13 23:39:58,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:39:58,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash -195751701, now seen corresponding path program 1 times [2024-08-13 23:39:58,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:58,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622439325] [2024-08-13 23:39:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:58,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:59,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:59,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622439325] [2024-08-13 23:39:59,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622439325] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:59,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:59,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:39:59,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914246660] [2024-08-13 23:39:59,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:59,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:39:59,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:39:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:39:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,151 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:59,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 23:39:59,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-13 23:39:59,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-13 23:39:59,221 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:39:59,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:59,222 INFO L85 PathProgramCache]: Analyzing trace with hash -195719988, now seen corresponding path program 1 times [2024-08-13 23:39:59,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949803436] [2024-08-13 23:39:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:59,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 23:39:59,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-13 23:39:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 23:39:59,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-13 23:39:59,277 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-13 23:39:59,279 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-13 23:39:59,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-13 23:39:59,287 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-08-13 23:39:59,289 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2024-08-13 23:39:59,290 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-13 23:39:59,290 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-08-13 23:39:59,308 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 23:39:59,312 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:39:59,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:39:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:39:59,335 INFO L229 MonitoredProcess]: Starting monitored process 3 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 23:39:59,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-08-13 23:39:59,342 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:39:59,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread2of2ForFork0 ======== [2024-08-13 23:39:59,342 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:39:59,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-13 23:39:59,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:39:59,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:59,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1045238684, now seen corresponding path program 1 times [2024-08-13 23:39:59,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:59,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848768407] [2024-08-13 23:39:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:59,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:59,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:59,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848768407] [2024-08-13 23:39:59,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848768407] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:59,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:59,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:39:59,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923317264] [2024-08-13 23:39:59,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:59,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:39:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:59,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:39:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:39:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,462 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:59,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:39:59,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-13 23:39:59,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:39:59,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:59,511 INFO L85 PathProgramCache]: Analyzing trace with hash -315668198, now seen corresponding path program 1 times [2024-08-13 23:39:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:59,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234284929] [2024-08-13 23:39:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:59,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:59,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234284929] [2024-08-13 23:39:59,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234284929] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:59,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:59,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:39:59,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139597277] [2024-08-13 23:39:59,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:59,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:39:59,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:39:59,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:39:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,582 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:59,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 23:39:59,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-13 23:39:59,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:39:59,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:59,631 INFO L85 PathProgramCache]: Analyzing trace with hash -67685430, now seen corresponding path program 1 times [2024-08-13 23:39:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:59,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064699690] [2024-08-13 23:39:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:59,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:59,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:59,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064699690] [2024-08-13 23:39:59,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064699690] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:59,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:59,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:39:59,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556574861] [2024-08-13 23:39:59,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:59,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:39:59,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:59,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:39:59,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:39:59,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,716 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:59,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23:39:59,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-13 23:39:59,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:39:59,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:39:59,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1956005368, now seen corresponding path program 1 times [2024-08-13 23:39:59,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:39:59,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396416751] [2024-08-13 23:39:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:39:59,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:39:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:39:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:39:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:39:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396416751] [2024-08-13 23:39:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396416751] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:39:59,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:39:59,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:39:59,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826836642] [2024-08-13 23:39:59,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:39:59,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:39:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:39:59,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:39:59,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:39:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:39:59,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:39:59,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:39:59,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:39:59,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:39:59,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:00,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:00,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-13 23:40:00,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:00,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:00,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1384390759, now seen corresponding path program 1 times [2024-08-13 23:40:00,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:00,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597057352] [2024-08-13 23:40:00,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:00,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597057352] [2024-08-13 23:40:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597057352] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727753051] [2024-08-13 23:40:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:00,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:00,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:00,247 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 23:40:00,248 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 23:40:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:00,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 17 conjunts are in the unsatisfiable core [2024-08-13 23:40:00,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:00,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:01,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727753051] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:01,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:01,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 20 [2024-08-13 23:40:01,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123845124] [2024-08-13 23:40:01,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:01,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-08-13 23:40:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:01,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-08-13 23:40:01,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-08-13 23:40:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:01,193 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:01,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 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 23:40:01,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:01,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:01,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:01,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:01,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-13 23:40:01,967 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 23:40:02,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:02,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:02,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:02,155 INFO L85 PathProgramCache]: Analyzing trace with hash 956095543, now seen corresponding path program 1 times [2024-08-13 23:40:02,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:02,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039023518] [2024-08-13 23:40:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:02,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:02,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:02,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039023518] [2024-08-13 23:40:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039023518] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:02,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122730071] [2024-08-13 23:40:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:02,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:02,362 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 23:40:02,364 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 23:40:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:02,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-13 23:40:02,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:02,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:03,017 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:03,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122730071] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:03,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:03,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-08-13 23:40:03,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429929309] [2024-08-13 23:40:03,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:03,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-08-13 23:40:03,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:03,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-08-13 23:40:03,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-08-13 23:40:03,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:03,020 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:03,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 18 states have internal predecessors, (95), 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 23:40:03,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:03,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:03,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:03,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:03,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-08-13 23:40:03,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-13 23:40:03,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:03,505 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 23:40:03,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:03,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:03,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1339621045, now seen corresponding path program 1 times [2024-08-13 23:40:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:03,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985063963] [2024-08-13 23:40:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:03,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:04,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:04,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985063963] [2024-08-13 23:40:04,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985063963] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:04,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898789741] [2024-08-13 23:40:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:04,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:04,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:04,177 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 23:40:04,178 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 23:40:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:04,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 22 conjunts are in the unsatisfiable core [2024-08-13 23:40:04,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:04,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:04,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898789741] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:04,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:04,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11] total 30 [2024-08-13 23:40:04,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158838035] [2024-08-13 23:40:04,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:04,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-08-13 23:40:04,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-08-13 23:40:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-08-13 23:40:04,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:04,880 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:04,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.4) internal successors, (102), 30 states have internal predecessors, (102), 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 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-13 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:04,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:06,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-08-13 23:40:06,103 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 23:40:06,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-08-13 23:40:06,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:06,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:06,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1828250365, now seen corresponding path program 2 times [2024-08-13 23:40:06,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:06,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523933960] [2024-08-13 23:40:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:06,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:07,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:07,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523933960] [2024-08-13 23:40:07,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523933960] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:07,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584315027] [2024-08-13 23:40:07,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 23:40:07,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:07,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:07,168 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 23:40:07,176 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 23:40:07,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 23:40:07,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 23:40:07,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 15 conjunts are in the unsatisfiable core [2024-08-13 23:40:07,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 60 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-08-13 23:40:07,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 26 proven. 40 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-08-13 23:40:07,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584315027] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:07,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 8] total 33 [2024-08-13 23:40:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869412349] [2024-08-13 23:40:07,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:07,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-08-13 23:40:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:07,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-08-13 23:40:07,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2024-08-13 23:40:07,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:07,804 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:07,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 33 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-08-13 23:40:07,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-08-13 23:40:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-13 23:40:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-08-13 23:40:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-08-13 23:40:14,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-08-13 23:40:14,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-08-13 23:40:14,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-08-13 23:40:14,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-08-13 23:40:14,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-08-13 23:40:14,448 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-08-13 23:40:14,448 INFO L308 ceAbstractionStarter]: Result for error location thrThread2of2ForFork0 was SAFE,SAFE,SAFE (1/3) [2024-08-13 23:40:14,450 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:14,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:40:14,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:14,455 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-13 23:40:14,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-08-13 23:40:14,458 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:40:14,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of2ForFork0 ======== [2024-08-13 23:40:14,458 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:14,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-13 23:40:14,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:14,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:14,489 INFO L85 PathProgramCache]: Analyzing trace with hash 278638706, now seen corresponding path program 1 times [2024-08-13 23:40:14,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:14,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388955505] [2024-08-13 23:40:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:14,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:14,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:14,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388955505] [2024-08-13 23:40:14,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388955505] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:14,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:14,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-13 23:40:14,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934352432] [2024-08-13 23:40:14,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:14,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:40:14,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:14,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:40:14,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:40:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,514 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:14,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 23:40:14,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-13 23:40:14,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:14,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1483834420, now seen corresponding path program 1 times [2024-08-13 23:40:14,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:14,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473865067] [2024-08-13 23:40:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:14,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:14,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:14,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473865067] [2024-08-13 23:40:14,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473865067] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:14,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:14,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:40:14,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913001772] [2024-08-13 23:40:14,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:14,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:14,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:14,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:14,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,568 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:14,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 23:40:14,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-13 23:40:14,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:14,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:14,591 INFO L85 PathProgramCache]: Analyzing trace with hash -251148804, now seen corresponding path program 1 times [2024-08-13 23:40:14,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:14,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768089050] [2024-08-13 23:40:14,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:14,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:14,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768089050] [2024-08-13 23:40:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768089050] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:14,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:14,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:40:14,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929909465] [2024-08-13 23:40:14,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:14,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:40:14,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:40:14,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:40:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,658 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:14,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23:40:14,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:14,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-08-13 23:40:14,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:14,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash 529492309, now seen corresponding path program 1 times [2024-08-13 23:40:14,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:14,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33457411] [2024-08-13 23:40:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:14,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:14,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33457411] [2024-08-13 23:40:14,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33457411] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:14,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:14,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:14,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176810362] [2024-08-13 23:40:14,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:14,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:14,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:14,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:14,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,781 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:14,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 23:40:14,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:14,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:14,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:14,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-08-13 23:40:14,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:14,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1991229035, now seen corresponding path program 1 times [2024-08-13 23:40:14,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:14,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126654352] [2024-08-13 23:40:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:14,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:14,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:14,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126654352] [2024-08-13 23:40:14,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126654352] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:14,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185844639] [2024-08-13 23:40:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:14,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:14,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:14,939 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 23:40:14,942 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 23:40:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:14,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-13 23:40:14,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:15,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:15,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185844639] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:15,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:15,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 19 [2024-08-13 23:40:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941026933] [2024-08-13 23:40:15,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:15,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-08-13 23:40:15,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:15,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-08-13 23:40:15,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-08-13 23:40:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:15,434 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:15,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 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 23:40:15,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:15,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:15,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:15,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:15,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-13 23:40:16,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-08-13 23:40:16,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:16,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:16,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1589757344, now seen corresponding path program 1 times [2024-08-13 23:40:16,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:16,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827407921] [2024-08-13 23:40:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:16,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:16,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:16,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827407921] [2024-08-13 23:40:16,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827407921] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:16,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73605482] [2024-08-13 23:40:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:16,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:16,418 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:16,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-08-13 23:40:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:16,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-13 23:40:16,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:16,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:16,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:16,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73605482] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:16,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:16,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-08-13 23:40:16,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236577707] [2024-08-13 23:40:16,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:16,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-13 23:40:16,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:16,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-13 23:40:16,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-08-13 23:40:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:16,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:16,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-08-13 23:40:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-08-13 23:40:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:17,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-08-13 23:40:17,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-08-13 23:40:17,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-08-13 23:40:17,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-08-13 23:40:17,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-08-13 23:40:17,604 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-08-13 23:40:17,604 INFO L308 ceAbstractionStarter]: Result for error location thrThread1of2ForFork0 was SAFE,SAFE,SAFE (2/3) [2024-08-13 23:40:17,607 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:17,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:40:17,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:17,609 INFO L229 MonitoredProcess]: Starting monitored process 11 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 23:40:17,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2024-08-13 23:40:17,611 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:40:17,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 23:40:17,612 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:17,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-13 23:40:17,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:17,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:17,644 INFO L85 PathProgramCache]: Analyzing trace with hash 192993423, now seen corresponding path program 1 times [2024-08-13 23:40:17,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:17,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223655049] [2024-08-13 23:40:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:17,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-13 23:40:17,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223655049] [2024-08-13 23:40:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223655049] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:17,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:40:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222745383] [2024-08-13 23:40:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:17,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:40:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:40:17,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:40:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:17,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:17,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-08-13 23:40:17,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:17,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1907346001, now seen corresponding path program 1 times [2024-08-13 23:40:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323356964] [2024-08-13 23:40:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:17,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:17,748 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-13 23:40:17,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:17,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323356964] [2024-08-13 23:40:17,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323356964] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:17,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:17,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:17,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486200836] [2024-08-13 23:40:17,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:17,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,750 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:17,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:17,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-08-13 23:40:17,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:17,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2076728927, now seen corresponding path program 1 times [2024-08-13 23:40:17,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:17,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154652456] [2024-08-13 23:40:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:17,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:17,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154652456] [2024-08-13 23:40:17,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154652456] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:17,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:17,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:17,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048655584] [2024-08-13 23:40:17,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:17,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:17,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:17,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,819 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:17,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 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) [2024-08-13 23:40:17,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-13 23:40:17,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:17,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:17,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1474525363, now seen corresponding path program 1 times [2024-08-13 23:40:17,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:17,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003570876] [2024-08-13 23:40:17,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:17,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:17,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:17,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003570876] [2024-08-13 23:40:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003570876] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:17,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:40:17,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495313982] [2024-08-13 23:40:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:17,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:40:17,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:40:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:40:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:17,942 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:17,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 23:40:17,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:17,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:17,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:18,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-08-13 23:40:18,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:18,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:18,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1040333998, now seen corresponding path program 1 times [2024-08-13 23:40:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:18,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732688130] [2024-08-13 23:40:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:18,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:18,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732688130] [2024-08-13 23:40:18,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732688130] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:18,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211089949] [2024-08-13 23:40:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:18,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:18,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:18,129 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:18,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-08-13 23:40:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:18,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjunts are in the unsatisfiable core [2024-08-13 23:40:18,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:18,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:19,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:19,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211089949] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:19,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:19,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 10] total 24 [2024-08-13 23:40:19,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376204711] [2024-08-13 23:40:19,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:19,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-08-13 23:40:19,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:19,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-08-13 23:40:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2024-08-13 23:40:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:19,032 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:19,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 24 states have internal predecessors, (75), 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 23:40:19,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:19,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:19,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:19,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:19,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-08-13 23:40:19,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-08-13 23:40:20,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:20,014 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:20,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:20,014 INFO L85 PathProgramCache]: Analyzing trace with hash -95540302, now seen corresponding path program 1 times [2024-08-13 23:40:20,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:20,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613955064] [2024-08-13 23:40:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 23:40:20,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-13 23:40:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 23:40:20,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-13 23:40:20,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-13 23:40:20,037 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-13 23:40:20,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-08-13 23:40:20,038 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-08-13 23:40:20,038 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (3/3) [2024-08-13 23:40:20,038 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-13 23:40:20,038 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-08-13 23:40:20,080 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 23:40:20,086 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:20,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:40:20,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:20,087 INFO L229 MonitoredProcess]: Starting monitored process 13 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 23:40:20,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2024-08-13 23:40:20,091 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:40:20,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of3ForFork0 ======== [2024-08-13 23:40:20,091 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:20,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-13 23:40:20,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:20,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:20,126 INFO L85 PathProgramCache]: Analyzing trace with hash 326366962, now seen corresponding path program 1 times [2024-08-13 23:40:20,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:20,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795801366] [2024-08-13 23:40:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795801366] [2024-08-13 23:40:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795801366] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:20,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:20,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-13 23:40:20,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631200678] [2024-08-13 23:40:20,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:20,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:40:20,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:40:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:40:20,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,146 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:20,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 23:40:20,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-08-13 23:40:20,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:20,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:20,170 INFO L85 PathProgramCache]: Analyzing trace with hash 106049332, now seen corresponding path program 1 times [2024-08-13 23:40:20,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:20,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493855318] [2024-08-13 23:40:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:20,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493855318] [2024-08-13 23:40:20,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493855318] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:20,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:20,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:40:20,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495286668] [2024-08-13 23:40:20,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:20,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,198 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:20,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 23:40:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:20,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-13 23:40:20,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:20,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1108570286, now seen corresponding path program 1 times [2024-08-13 23:40:20,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:20,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265839873] [2024-08-13 23:40:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:20,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265839873] [2024-08-13 23:40:20,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265839873] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:20,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:20,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:40:20,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649142278] [2024-08-13 23:40:20,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:20,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:40:20,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:20,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:40:20,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:40:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,284 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:20,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23:40:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:20,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-08-13 23:40:20,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:20,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1604223083, now seen corresponding path program 1 times [2024-08-13 23:40:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:20,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883217862] [2024-08-13 23:40:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:20,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:20,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:20,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883217862] [2024-08-13 23:40:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883217862] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:20,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:20,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:20,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9849779] [2024-08-13 23:40:20,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:20,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:20,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:20,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,394 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:20,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 23:40:20,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:20,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:20,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:20,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-08-13 23:40:20,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:20,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:20,450 INFO L85 PathProgramCache]: Analyzing trace with hash 948999153, now seen corresponding path program 1 times [2024-08-13 23:40:20,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:20,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246543242] [2024-08-13 23:40:20,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:20,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:20,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246543242] [2024-08-13 23:40:20,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246543242] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:20,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477730617] [2024-08-13 23:40:20,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:20,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:20,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:20,563 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:20,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-08-13 23:40:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:20,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-13 23:40:20,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:20,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:21,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477730617] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:21,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:21,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2024-08-13 23:40:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652215042] [2024-08-13 23:40:21,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:21,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-13 23:40:21,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:21,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-13 23:40:21,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-08-13 23:40:21,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:21,021 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:21,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:21,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:21,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:21,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:21,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:21,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:22,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-13 23:40:22,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-08-13 23:40:22,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-08-13 23:40:22,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:22,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:22,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1864507004, now seen corresponding path program 1 times [2024-08-13 23:40:22,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:22,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513634311] [2024-08-13 23:40:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:22,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:22,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513634311] [2024-08-13 23:40:22,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513634311] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:22,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650458852] [2024-08-13 23:40:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:22,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:22,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:22,809 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:22,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-08-13 23:40:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:22,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-13 23:40:22,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:23,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:23,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:23,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650458852] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:23,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:23,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-08-13 23:40:23,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482169715] [2024-08-13 23:40:23,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:23,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-13 23:40:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:23,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-13 23:40:23,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-08-13 23:40:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:23,221 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:23,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:23,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:23,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:23,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:23,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:23,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-08-13 23:40:23,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-08-13 23:40:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-08-13 23:40:24,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-08-13 23:40:24,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-08-13 23:40:24,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-08-13 23:40:24,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-08-13 23:40:24,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:24,833 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-08-13 23:40:24,833 INFO L308 ceAbstractionStarter]: Result for error location thrThread1of3ForFork0 was SAFE,SAFE,SAFE (1/4) [2024-08-13 23:40:24,835 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:24,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:40:24,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:24,836 INFO L229 MonitoredProcess]: Starting monitored process 16 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 23:40:24,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2024-08-13 23:40:24,839 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:40:24,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-13 23:40:24,840 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:24,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-13 23:40:24,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:24,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1363585128, now seen corresponding path program 1 times [2024-08-13 23:40:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:24,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115102076] [2024-08-13 23:40:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-13 23:40:24,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:24,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115102076] [2024-08-13 23:40:24,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115102076] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:24,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:24,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:40:24,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93805780] [2024-08-13 23:40:24,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:24,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:40:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:40:24,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:40:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:24,915 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:24,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 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 23:40:24,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:24,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:24,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-08-13 23:40:24,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:24,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1813767530, now seen corresponding path program 1 times [2024-08-13 23:40:24,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:24,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125855833] [2024-08-13 23:40:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:24,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-13 23:40:25,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:25,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125855833] [2024-08-13 23:40:25,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125855833] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:25,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:25,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489549580] [2024-08-13 23:40:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:25,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:25,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:25,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:25,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 23:40:25,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:25,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:25,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-08-13 23:40:25,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:25,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1707955050, now seen corresponding path program 1 times [2024-08-13 23:40:25,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:25,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500782863] [2024-08-13 23:40:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-13 23:40:25,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:25,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500782863] [2024-08-13 23:40:25,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500782863] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:25,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:25,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:25,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519207463] [2024-08-13 23:40:25,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:25,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:25,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:25,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:25,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:25,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:25,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 23:40:25,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:25,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:25,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-08-13 23:40:25,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:25,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:25,202 INFO L85 PathProgramCache]: Analyzing trace with hash -332069682, now seen corresponding path program 1 times [2024-08-13 23:40:25,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:25,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144664630] [2024-08-13 23:40:25,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:25,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:25,391 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-13 23:40:25,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:25,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144664630] [2024-08-13 23:40:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144664630] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:25,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:25,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:40:25,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350253888] [2024-08-13 23:40:25,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:25,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:40:25,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:25,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:40:25,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:40:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:25,396 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:25,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:25,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:25,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:25,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-08-13 23:40:25,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:25,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1813289245, now seen corresponding path program 1 times [2024-08-13 23:40:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:25,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254463552] [2024-08-13 23:40:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:25,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:25,717 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:25,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:25,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254463552] [2024-08-13 23:40:25,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254463552] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:25,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790722428] [2024-08-13 23:40:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:25,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:25,720 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:25,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-08-13 23:40:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:25,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 13 conjunts are in the unsatisfiable core [2024-08-13 23:40:25,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:26,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:26,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790722428] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:26,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:26,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2024-08-13 23:40:26,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142774109] [2024-08-13 23:40:26,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:26,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-08-13 23:40:26,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:26,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-08-13 23:40:26,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-08-13 23:40:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:26,224 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:26,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 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 23:40:26,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:26,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:26,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:26,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:26,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:26,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-08-13 23:40:26,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-08-13 23:40:26,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:26,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash -95223177, now seen corresponding path program 1 times [2024-08-13 23:40:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:26,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828330855] [2024-08-13 23:40:26,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:26,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:27,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828330855] [2024-08-13 23:40:27,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828330855] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011591317] [2024-08-13 23:40:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:27,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:27,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:27,140 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:27,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-08-13 23:40:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:27,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 33 conjunts are in the unsatisfiable core [2024-08-13 23:40:27,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:27,725 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:28,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011591317] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:28,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:28,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 14] total 35 [2024-08-13 23:40:28,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022235520] [2024-08-13 23:40:28,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:28,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-08-13 23:40:28,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-08-13 23:40:28,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2024-08-13 23:40:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:28,294 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:28,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.257142857142857) internal successors, (114), 35 states have internal predecessors, (114), 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 23:40:28,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:28,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:28,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:28,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:28,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:28,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-08-13 23:40:30,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-08-13 23:40:30,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-08-13 23:40:30,302 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:30,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash 176944840, now seen corresponding path program 1 times [2024-08-13 23:40:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:30,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343764355] [2024-08-13 23:40:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:30,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:30,606 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:30,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343764355] [2024-08-13 23:40:30,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343764355] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:30,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813682971] [2024-08-13 23:40:30,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:30,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:30,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:30,609 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:30,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-08-13 23:40:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:30,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 29 conjunts are in the unsatisfiable core [2024-08-13 23:40:30,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:32,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-13 23:40:32,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813682971] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:32,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:32,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 12] total 35 [2024-08-13 23:40:32,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683781346] [2024-08-13 23:40:32,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:32,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-08-13 23:40:32,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:32,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-08-13 23:40:32,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=990, Unknown=0, NotChecked=0, Total=1190 [2024-08-13 23:40:32,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:32,508 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:32,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.5428571428571427) internal successors, (124), 35 states have internal predecessors, (124), 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 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-08-13 23:40:32,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-13 23:40:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-08-13 23:40:34,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-08-13 23:40:35,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-08-13 23:40:35,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:35,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1121706823, now seen corresponding path program 1 times [2024-08-13 23:40:35,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:35,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122602070] [2024-08-13 23:40:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:35,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:35,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:35,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122602070] [2024-08-13 23:40:35,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122602070] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:35,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749870526] [2024-08-13 23:40:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:35,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:35,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:35,435 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:35,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-08-13 23:40:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:35,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 23 conjunts are in the unsatisfiable core [2024-08-13 23:40:35,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:36,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:36,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749870526] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:36,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:36,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 10] total 33 [2024-08-13 23:40:36,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897343796] [2024-08-13 23:40:36,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:36,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-08-13 23:40:36,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:36,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-08-13 23:40:36,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2024-08-13 23:40:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:36,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:36,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.878787878787879) internal successors, (128), 33 states have internal predecessors, (128), 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 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-08-13 23:40:36,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:37,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:37,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:37,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-08-13 23:40:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-08-13 23:40:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-08-13 23:40:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-08-13 23:40:37,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-08-13 23:40:37,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:37,853 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-13 23:40:37,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:37,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1121738536, now seen corresponding path program 1 times [2024-08-13 23:40:37,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:37,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066334697] [2024-08-13 23:40:37,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:37,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 23:40:37,895 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-13 23:40:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-13 23:40:37,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-13 23:40:37,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-13 23:40:37,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-08-13 23:40:37,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-08-13 23:40:37,930 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-13 23:40:37,931 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4) [2024-08-13 23:40:37,931 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-13 23:40:37,931 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-08-13 23:40:37,954 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-13 23:40:37,955 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:37,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-13 23:40:37,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:37,957 INFO L229 MonitoredProcess]: Starting monitored process 21 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 23:40:37,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2024-08-13 23:40:37,960 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-13 23:40:37,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of4ForFork0 ======== [2024-08-13 23:40:37,961 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;@7bbf66d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-13 23:40:37,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-13 23:40:38,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:38,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:38,007 INFO L85 PathProgramCache]: Analyzing trace with hash 388410241, now seen corresponding path program 1 times [2024-08-13 23:40:38,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:38,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073168317] [2024-08-13 23:40:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:38,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:38,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073168317] [2024-08-13 23:40:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073168317] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:38,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:38,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-13 23:40:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700282906] [2024-08-13 23:40:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:38,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-13 23:40:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-13 23:40:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-13 23:40:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,029 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:38,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 23:40:38,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-08-13 23:40:38,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:38,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash -399899613, now seen corresponding path program 1 times [2024-08-13 23:40:38,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:38,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711623176] [2024-08-13 23:40:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:38,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711623176] [2024-08-13 23:40:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711623176] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:38,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:38,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-13 23:40:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272906795] [2024-08-13 23:40:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:38,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:38,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:38,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:38,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 23:40:38,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-08-13 23:40:38,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:38,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash -916326460, now seen corresponding path program 1 times [2024-08-13 23:40:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:38,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705205889] [2024-08-13 23:40:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:38,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705205889] [2024-08-13 23:40:38,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705205889] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:38,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:38,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-13 23:40:38,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230849088] [2024-08-13 23:40:38,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:38,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-13 23:40:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-13 23:40:38,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-08-13 23:40:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:38,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23:40:38,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:38,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-08-13 23:40:38,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:38,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:38,264 INFO L85 PathProgramCache]: Analyzing trace with hash 114451243, now seen corresponding path program 1 times [2024-08-13 23:40:38,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:38,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418564875] [2024-08-13 23:40:38,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:38,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:38,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418564875] [2024-08-13 23:40:38,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418564875] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-13 23:40:38,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-13 23:40:38,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-13 23:40:38,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927995984] [2024-08-13 23:40:38,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-13 23:40:38,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-13 23:40:38,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-13 23:40:38,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-13 23:40:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,319 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:38,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 23:40:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:38,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-08-13 23:40:38,433 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:38,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash -900639228, now seen corresponding path program 1 times [2024-08-13 23:40:38,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:38,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039937154] [2024-08-13 23:40:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:38,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:38,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039937154] [2024-08-13 23:40:38,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039937154] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:38,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809857646] [2024-08-13 23:40:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:38,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:38,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:38,536 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:38,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-08-13 23:40:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:38,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-13 23:40:38,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:38,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809857646] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:38,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:38,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2024-08-13 23:40:38,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780291039] [2024-08-13 23:40:38,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:38,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-08-13 23:40:38,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:38,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-08-13 23:40:38,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-08-13 23:40:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:38,922 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:38,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 19 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:40:38,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:38,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:38,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:38,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:39,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-08-13 23:40:39,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:39,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:39,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1495137945, now seen corresponding path program 1 times [2024-08-13 23:40:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:39,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849902863] [2024-08-13 23:40:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:39,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:39,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849902863] [2024-08-13 23:40:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849902863] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947466648] [2024-08-13 23:40:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:39,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:39,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:39,780 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:39,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-08-13 23:40:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:39,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjunts are in the unsatisfiable core [2024-08-13 23:40:39,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:40,269 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:40,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:40,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947466648] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:40,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:40,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2024-08-13 23:40:40,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301294232] [2024-08-13 23:40:40,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:40,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-08-13 23:40:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-08-13 23:40:40,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-08-13 23:40:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:40,630 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:40,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 28 states have internal predecessors, (171), 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 23:40:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-13 23:40:41,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-08-13 23:40:41,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-08-13 23:40:41,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:40:41,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:40:41,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2007877991, now seen corresponding path program 2 times [2024-08-13 23:40:41,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:40:41,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710370890] [2024-08-13 23:40:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:40:41,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:40:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:40:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 142 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:41,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:40:41,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710370890] [2024-08-13 23:40:41,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710370890] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:40:41,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610257244] [2024-08-13 23:40:41,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-13 23:40:41,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:40:41,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:40:41,940 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:40:41,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-08-13 23:40:42,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-13 23:40:42,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-13 23:40:42,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 18 conjunts are in the unsatisfiable core [2024-08-13 23:40:42,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:40:42,539 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 125 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:42,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:40:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 163 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:40:43,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610257244] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:40:43,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:40:43,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 16] total 41 [2024-08-13 23:40:43,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488714734] [2024-08-13 23:40:43,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:40:43,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-08-13 23:40:43,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:40:43,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-08-13 23:40:43,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=1202, Unknown=0, NotChecked=0, Total=1640 [2024-08-13 23:40:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:40:43,122 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:40:43,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.414634146341464) internal successors, (222), 41 states have internal predecessors, (222), 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 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-08-13 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-13 23:40:43,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:41:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:41:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:41:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:41:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:41:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-08-13 23:41:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-08-13 23:41:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-08-13 23:41:03,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-08-13 23:41:03,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-08-13 23:41:03,285 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr2ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr1ASSERT_VIOLATIONWITNESS_INVARIANT, thrErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-13 23:41:03,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-13 23:41:03,286 INFO L85 PathProgramCache]: Analyzing trace with hash -837285478, now seen corresponding path program 1 times [2024-08-13 23:41:03,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-13 23:41:03,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18502871] [2024-08-13 23:41:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:41:03,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-13 23:41:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:41:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:41:03,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-13 23:41:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18502871] [2024-08-13 23:41:03,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18502871] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-13 23:41:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297729632] [2024-08-13 23:41:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-13 23:41:03,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-13 23:41:03,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-13 23:41:03,444 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-13 23:41:03,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-08-13 23:41:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-13 23:41:03,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-13 23:41:03,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-13 23:41:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:41:03,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-13 23:41:03,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-13 23:41:03,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297729632] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-13 23:41:03,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-13 23:41:03,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-08-13 23:41:03,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756441826] [2024-08-13 23:41:03,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-13 23:41:03,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-08-13 23:41:03,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-13 23:41:03,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-08-13 23:41:03,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-08-13 23:41:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-13 23:41:03,909 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-13 23:41:03,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-13 23:41:03,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-13 23:41:03,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:41:03,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-13 23:41:03,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-13 23:41:03,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-08-13 23:41:03,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-08-13 23:41:03,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2024-08-13 23:41:03,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.