./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-08-20_10-08-36.files/protection-local/28-race_reach_42-trylock2_racefree.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i ./goblint.2024-08-20_10-08-36.files/protection-local/28-race_reach_42-trylock2_racefree.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-eval-da67795-m [2024-08-27 01:43:51,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 01:43:51,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 01:43:51,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 01:43:51,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 01:43:51,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 01:43:51,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 01:43:51,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 01:43:51,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 01:43:51,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 01:43:51,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 01:43:51,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 01:43:51,446 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 01:43:51,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 01:43:51,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 01:43:51,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 01:43:51,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 01:43:51,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 01:43:51,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 01:43:51,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 01:43:51,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 01:43:51,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 01:43:51,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 01:43:51,455 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 01:43:51,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 01:43:51,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 01:43:51,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 01:43:51,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 01:43:51,457 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 01:43:51,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 01:43:51,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 01:43:51,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 01:43:51,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 01:43:51,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 01:43:51,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 01:43:51,458 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 01:43:51,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 01:43:51,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 01:43:51,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 01:43:51,461 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 01:43:51,462 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 01:43:51,462 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 01:43:51,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-27 01:43:51,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 01:43:51,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 01:43:51,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 01:43:51,736 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 01:43:51,737 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 01:43:51,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/protection-local/28-race_reach_42-trylock2_racefree.yml/witness.yml [2024-08-27 01:43:51,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 01:43:51,854 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 01:43:51,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-08-27 01:43:53,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 01:43:53,542 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 01:43:53,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-08-27 01:43:53,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bf65f3032/165a54b6bb754c149aa2f31390ea0ef2/FLAGca265381a [2024-08-27 01:43:53,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bf65f3032/165a54b6bb754c149aa2f31390ea0ef2 [2024-08-27 01:43:53,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 01:43:53,572 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 01:43:53,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 01:43:53,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 01:43:53,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 01:43:53,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 01:43:51" (1/2) ... [2024-08-27 01:43:53,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58467117 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 01:43:53, skipping insertion in model container [2024-08-27 01:43:53,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 01:43:51" (1/2) ... [2024-08-27 01:43:53,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41cc0a48 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 01:43:53, skipping insertion in model container [2024-08-27 01:43:53,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:43:53" (2/2) ... [2024-08-27 01:43:53,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58467117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:53, skipping insertion in model container [2024-08-27 01:43:53,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:43:53" (2/2) ... [2024-08-27 01:43:53,584 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 01:43:53,620 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 01:43:53,621 INFO L1541 ArrayList]: Location invariant before [L705-L705] (0 <= g1) && (0 <= g2) [2024-08-27 01:43:53,621 INFO L1541 ArrayList]: Location invariant before [L712-L712] (0 <= g1) && (0 <= g2) [2024-08-27 01:43:53,621 INFO L1541 ArrayList]: Location invariant before [L712-L712] 0 <= g1 [2024-08-27 01:43:53,621 INFO L1541 ArrayList]: Location invariant before [L720-L720] (0 <= g2) && (g1 == 0) [2024-08-27 01:43:53,622 INFO L1541 ArrayList]: Location invariant before [L702-L702] (0 <= g1) && (0 <= g2) [2024-08-27 01:43:53,622 INFO L1541 ArrayList]: Location invariant before [L717-L717] (0 <= g1) && (0 <= g2) [2024-08-27 01:43:53,622 INFO L1541 ArrayList]: Location invariant before [L702-L702] (0 <= g2) && (1 <= g1) [2024-08-27 01:43:53,622 INFO L1541 ArrayList]: Location invariant before [L718-L718] (0 <= g2) && (g1 == 0) [2024-08-27 01:43:53,622 INFO L1541 ArrayList]: Location invariant before [L705-L705] (0 <= g1) && (1 <= g2) [2024-08-27 01:43:53,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 01:43:53,974 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 01:43:53,985 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 01:43:54,069 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 01:43:54,107 INFO L206 MainTranslator]: Completed translation [2024-08-27 01:43:54,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54 WrapperNode [2024-08-27 01:43:54,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 01:43:54,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 01:43:54,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 01:43:54,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 01:43:54,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,156 INFO L138 Inliner]: procedures = 172, calls = 61, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 167 [2024-08-27 01:43:54,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 01:43:54,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 01:43:54,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 01:43:54,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 01:43:54,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 01:43:54,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 01:43:54,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 01:43:54,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 01:43:54,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (1/1) ... [2024-08-27 01:43:54,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 01:43:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:43:54,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-27 01:43:54,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-27 01:43:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-27 01:43:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-27 01:43:54,263 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-08-27 01:43:54,264 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 01:43:54,264 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-27 01:43:54,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 01:43:54,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 01:43:54,266 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 01:43:54,384 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 01:43:54,386 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 01:43:54,704 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 01:43:54,704 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 01:43:54,930 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 01:43:54,930 INFO L318 CfgBuilder]: Removed 23 assume(true) statements. [2024-08-27 01:43:54,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:43:54 BoogieIcfgContainer [2024-08-27 01:43:54,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 01:43:54,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 01:43:54,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 01:43:54,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 01:43:54,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 01:43:51" (1/4) ... [2024-08-27 01:43:54,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed90713 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 01:43:54, skipping insertion in model container [2024-08-27 01:43:54,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 01:43:53" (2/4) ... [2024-08-27 01:43:54,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed90713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 01:43:54, skipping insertion in model container [2024-08-27 01:43:54,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:43:54" (3/4) ... [2024-08-27 01:43:54,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed90713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 01:43:54, skipping insertion in model container [2024-08-27 01:43:54,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:43:54" (4/4) ... [2024-08-27 01:43:54,941 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2024-08-27 01:43:54,962 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 01:43:54,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-08-27 01:43:54,963 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 01:43:55,030 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-08-27 01:43:55,079 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:43:55,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 01:43:55,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:43:55,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 01:43:55,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-27 01:43:55,113 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 01:43:55,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-08-27 01:43:55,134 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;@53a5b182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:43:55,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-27 01:43:55,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:55,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:55,274 INFO L85 PathProgramCache]: Analyzing trace with hash -100347420, now seen corresponding path program 1 times [2024-08-27 01:43:55,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:55,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72158890] [2024-08-27 01:43:55,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:55,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 01:43:55,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:55,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72158890] [2024-08-27 01:43:55,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72158890] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:55,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:55,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:43:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264416180] [2024-08-27 01:43:55,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:55,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-27 01:43:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:55,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-27 01:43:55,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-27 01:43:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,668 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:55,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) [2024-08-27 01:43:55,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 01:43:55,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:55,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:55,713 INFO L85 PathProgramCache]: Analyzing trace with hash -410096106, now seen corresponding path program 1 times [2024-08-27 01:43:55,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:55,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772733987] [2024-08-27 01:43:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:55,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:55,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 01:43:55,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:55,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772733987] [2024-08-27 01:43:55,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772733987] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:55,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:55,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-27 01:43:55,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557920266] [2024-08-27 01:43:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:55,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:43:55,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:43:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:43:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,896 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:55,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2024-08-27 01:43:55,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:55,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:55,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-27 01:43:55,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:55,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash 976332746, now seen corresponding path program 1 times [2024-08-27 01:43:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:55,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522263968] [2024-08-27 01:43:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 01:43:56,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:56,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522263968] [2024-08-27 01:43:56,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522263968] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:56,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:56,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:43:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554619234] [2024-08-27 01:43:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 01:43:56,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 01:43:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-27 01:43:56,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,079 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:56,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) 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) [2024-08-27 01:43:56,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:56,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:56,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-27 01:43:56,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:56,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:56,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1967055481, now seen corresponding path program 1 times [2024-08-27 01:43:56,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:56,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135321206] [2024-08-27 01:43:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:56,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 01:43:56,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:56,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135321206] [2024-08-27 01:43:56,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135321206] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:56,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:56,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:43:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297135644] [2024-08-27 01:43:56,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:56,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:43:56,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:43:56,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-08-27 01:43:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,372 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:56,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:43:56,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:56,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:56,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-27 01:43:56,504 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:56,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1280785431, now seen corresponding path program 1 times [2024-08-27 01:43:56,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:56,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488977091] [2024-08-27 01:43:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 01:43:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:56,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488977091] [2024-08-27 01:43:56,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488977091] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:56,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:56,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:43:56,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871393353] [2024-08-27 01:43:56,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:56,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:43:56,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:56,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:43:56,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-27 01:43:56,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,636 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:56,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:43:56,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:56,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:56,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:56,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:56,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:58,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:43:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:43:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:43:58,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-27 01:43:58,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-27 01:43:58,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-27 01:43:58,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 4 remaining) [2024-08-27 01:43:58,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-27 01:43:58,681 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-08-27 01:43:58,683 INFO L308 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE (1/2) [2024-08-27 01:43:58,687 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:43:58,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 01:43:58,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:43:58,691 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) [2024-08-27 01:43:58,693 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 [2024-08-27 01:43:58,696 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 01:43:58,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 01:43:58,697 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;@53a5b182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:43:58,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-08-27 01:43:58,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:43:58,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash 298599963, now seen corresponding path program 1 times [2024-08-27 01:43:58,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:58,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552576115] [2024-08-27 01:43:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:58,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:58,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 01:43:58,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552576115] [2024-08-27 01:43:58,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552576115] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:43:58,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802121109] [2024-08-27 01:43:58,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:58,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-27 01:43:58,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-27 01:43:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-27 01:43:58,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:58,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:58,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) 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) [2024-08-27 01:43:58,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:58,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-08-27 01:43:58,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:43:58,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:58,788 INFO L85 PathProgramCache]: Analyzing trace with hash -905256973, now seen corresponding path program 1 times [2024-08-27 01:43:58,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:58,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940084595] [2024-08-27 01:43:58,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:58,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 01:43:58,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-27 01:43:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 01:43:58,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-27 01:43:58,874 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-27 01:43:58,874 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-08-27 01:43:58,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-08-27 01:43:58,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-08-27 01:43:58,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 6 remaining) [2024-08-27 01:43:58,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 6 remaining) [2024-08-27 01:43:58,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 6 remaining) [2024-08-27 01:43:58,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-27 01:43:58,877 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-27 01:43:58,877 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/2) [2024-08-27 01:43:58,878 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-27 01:43:58,878 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-08-27 01:43:58,901 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-27 01:43:58,904 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:43:58,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 01:43:58,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:43:58,906 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 01:43:58,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-08-27 01:43:58,912 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 01:43:58,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2024-08-27 01:43:58,913 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;@53a5b182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:43:58,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-27 01:43:59,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:59,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 344487550, now seen corresponding path program 1 times [2024-08-27 01:43:59,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:59,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212890895] [2024-08-27 01:43:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:59,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-08-27 01:43:59,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:59,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212890895] [2024-08-27 01:43:59,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212890895] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:59,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:59,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:43:59,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202629123] [2024-08-27 01:43:59,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:59,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-27 01:43:59,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:59,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-27 01:43:59,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-27 01:43:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,218 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:59,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:43:59,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-08-27 01:43:59,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:59,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash -149708523, now seen corresponding path program 1 times [2024-08-27 01:43:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:59,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564952024] [2024-08-27 01:43:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:59,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 01:43:59,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:59,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564952024] [2024-08-27 01:43:59,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564952024] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:59,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:59,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:43:59,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977627461] [2024-08-27 01:43:59,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:59,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:43:59,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:59,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:43:59,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:43:59,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,318 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:59,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:43:59,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:59,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-08-27 01:43:59,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:59,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:59,339 INFO L85 PathProgramCache]: Analyzing trace with hash -446801484, now seen corresponding path program 1 times [2024-08-27 01:43:59,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:59,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402892693] [2024-08-27 01:43:59,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:59,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:43:59,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:59,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402892693] [2024-08-27 01:43:59,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402892693] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:59,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:43:59,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-08-27 01:43:59,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391916360] [2024-08-27 01:43:59,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:59,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:43:59,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:59,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:43:59,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:43:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,387 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:59,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2024-08-27 01:43:59,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:59,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:59,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:59,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-08-27 01:43:59,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:43:59,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:43:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1049268527, now seen corresponding path program 1 times [2024-08-27 01:43:59,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:43:59,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314542944] [2024-08-27 01:43:59,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:43:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:43:59,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:43:59,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314542944] [2024-08-27 01:43:59,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314542944] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 01:43:59,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598265505] [2024-08-27 01:43:59,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:43:59,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:43:59,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:43:59,625 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 01:43:59,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-27 01:43:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:43:59,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-27 01:43:59,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 01:43:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:43:59,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 01:43:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598265505] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:43:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 01:43:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-08-27 01:43:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132801558] [2024-08-27 01:43:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:43:59,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 01:43:59,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:43:59,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 01:43:59,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:43:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:43:59,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:43:59,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:43:59,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:59,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:43:59,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:00,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-08-27 01:44:00,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:00,350 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:00,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:00,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1446340543, now seen corresponding path program 1 times [2024-08-27 01:44:00,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:00,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579342803] [2024-08-27 01:44:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:00,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 01:44:00,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:00,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579342803] [2024-08-27 01:44:00,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579342803] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:00,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:00,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 01:44:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373452024] [2024-08-27 01:44:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:00,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 01:44:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:00,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 01:44:00,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,576 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:00,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2024-08-27 01:44:00,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:00,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:00,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-08-27 01:44:00,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:00,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:00,860 INFO L85 PathProgramCache]: Analyzing trace with hash -249477593, now seen corresponding path program 1 times [2024-08-27 01:44:00,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:00,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509194490] [2024-08-27 01:44:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 01:44:00,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:00,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509194490] [2024-08-27 01:44:00,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509194490] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:00,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:00,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:00,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355373542] [2024-08-27 01:44:00,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:00,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:00,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,999 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:00,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2024-08-27 01:44:00,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:00,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:00,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:01,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-08-27 01:44:01,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:01,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash -643100915, now seen corresponding path program 1 times [2024-08-27 01:44:01,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:01,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784177257] [2024-08-27 01:44:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:01,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 01:44:01,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784177257] [2024-08-27 01:44:01,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784177257] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:01,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:01,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 01:44:01,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605376771] [2024-08-27 01:44:01,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:01,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 01:44:01,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:01,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 01:44:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,272 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:01,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 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) [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-08-27 01:44:01,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:01,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:01,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1468641499, now seen corresponding path program 1 times [2024-08-27 01:44:01,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:01,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78920020] [2024-08-27 01:44:01,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:01,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 01:44:01,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:01,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78920020] [2024-08-27 01:44:01,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78920020] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:01,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:01,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:01,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116819480] [2024-08-27 01:44:01,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:01,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:44:01,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:44:01,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-08-27 01:44:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,558 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:01,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:01,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:01,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-08-27 01:44:01,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:01,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:01,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1853642999, now seen corresponding path program 1 times [2024-08-27 01:44:01,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:01,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373724318] [2024-08-27 01:44:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:01,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 01:44:02,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:02,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373724318] [2024-08-27 01:44:02,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373724318] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:02,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:02,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 01:44:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98363116] [2024-08-27 01:44:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:02,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:44:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:02,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:44:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-08-27 01:44:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:02,072 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:02,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:02,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:02,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:02,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:02,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:02,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:02,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:02,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:02,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:02,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:02,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-08-27 01:44:02,672 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:02,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash 97797222, now seen corresponding path program 1 times [2024-08-27 01:44:02,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:02,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31522968] [2024-08-27 01:44:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:02,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:02,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:02,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31522968] [2024-08-27 01:44:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31522968] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 01:44:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105621727] [2024-08-27 01:44:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:02,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:02,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:02,770 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 01:44:02,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-27 01:44:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:02,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-27 01:44:02,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 01:44:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:03,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 01:44:03,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105621727] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:03,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 01:44:03,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2024-08-27 01:44:03,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356379418] [2024-08-27 01:44:03,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:03,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:44:03,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:03,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:44:03,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-08-27 01:44:03,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:03,048 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:03,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:03,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:03,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-27 01:44:03,656 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,SelfDestructingSolverStorable16 [2024-08-27 01:44:03,657 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:03,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2066267940, now seen corresponding path program 1 times [2024-08-27 01:44:03,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:03,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054554968] [2024-08-27 01:44:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:03,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:03,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:03,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054554968] [2024-08-27 01:44:03,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054554968] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 01:44:03,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892012525] [2024-08-27 01:44:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:03,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:03,789 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 01:44:03,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-27 01:44:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:03,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 7 conjunts are in the unsatisfiable core [2024-08-27 01:44:03,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 01:44:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:04,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 01:44:04,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892012525] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:04,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 01:44:04,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-08-27 01:44:04,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965997850] [2024-08-27 01:44:04,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:04,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 01:44:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:04,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 01:44:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-08-27 01:44:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:04,011 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:04,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:04,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:04,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:11,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-27 01:44:11,999 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,SelfDestructingSolverStorable17 [2024-08-27 01:44:11,999 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:12,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:12,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1279348163, now seen corresponding path program 1 times [2024-08-27 01:44:12,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:12,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73672095] [2024-08-27 01:44:12,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:12,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-08-27 01:44:12,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73672095] [2024-08-27 01:44:12,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73672095] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 01:44:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173581339] [2024-08-27 01:44:12,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:12,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:12,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:12,142 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 01:44:12,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-08-27 01:44:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:12,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-27 01:44:12,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 01:44:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-08-27 01:44:12,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-27 01:44:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-08-27 01:44:12,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173581339] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-27 01:44:12,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-27 01:44:12,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-08-27 01:44:12,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91256762] [2024-08-27 01:44:12,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-27 01:44:12,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-27 01:44:12,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-27 01:44:12,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-08-27 01:44:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:12,405 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:12,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:12,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:12,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:12,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:12,408 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:13,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:13,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:13,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:13,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-08-27 01:44:13,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-08-27 01:44:13,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-08-27 01:44:13,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 4 remaining) [2024-08-27 01:44:13,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-08-27 01:44:14,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:14,121 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-27 01:44:14,122 INFO L308 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE,SAFE,SAFE,SAFE (1/3) [2024-08-27 01:44:14,125 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:44:14,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 01:44:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:14,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 01:44:14,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-08-27 01:44:14,130 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 01:44:14,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 01:44:14,131 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;@53a5b182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:44:14,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-08-27 01:44:14,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash 937148430, now seen corresponding path program 1 times [2024-08-27 01:44:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773146741] [2024-08-27 01:44:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-08-27 01:44:14,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:14,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773146741] [2024-08-27 01:44:14,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773146741] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:14,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:14,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:44:14,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131139762] [2024-08-27 01:44:14,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:14,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-27 01:44:14,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-27 01:44:14,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-27 01:44:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:14,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:14,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-08-27 01:44:14,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1789589107, now seen corresponding path program 1 times [2024-08-27 01:44:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559508190] [2024-08-27 01:44:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 01:44:14,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:14,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559508190] [2024-08-27 01:44:14,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559508190] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:14,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:14,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:14,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523733817] [2024-08-27 01:44:14,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:14,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:14,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:14,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,337 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:14,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) 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) [2024-08-27 01:44:14,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-08-27 01:44:14,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,362 INFO L85 PathProgramCache]: Analyzing trace with hash 120531878, now seen corresponding path program 1 times [2024-08-27 01:44:14,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694763655] [2024-08-27 01:44:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:14,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:14,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694763655] [2024-08-27 01:44:14,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694763655] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:14,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:14,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:44:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336207247] [2024-08-27 01:44:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:14,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:14,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:14,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:14,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:14,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,410 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:14,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-08-27 01:44:14,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,467 INFO L85 PathProgramCache]: Analyzing trace with hash -709136846, now seen corresponding path program 1 times [2024-08-27 01:44:14,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211075562] [2024-08-27 01:44:14,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-08-27 01:44:14,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:14,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211075562] [2024-08-27 01:44:14,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211075562] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:14,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:14,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 01:44:14,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303264862] [2024-08-27 01:44:14,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:14,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:44:14,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:14,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:44:14,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-08-27 01:44:14,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,598 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:14,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 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) [2024-08-27 01:44:14,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,598 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:14,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-08-27 01:44:14,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash -890125167, now seen corresponding path program 1 times [2024-08-27 01:44:14,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669469945] [2024-08-27 01:44:14,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 01:44:14,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-27 01:44:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 01:44:14,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-27 01:44:14,663 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-27 01:44:14,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-08-27 01:44:14,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-08-27 01:44:14,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-08-27 01:44:14,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 6 remaining) [2024-08-27 01:44:14,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 6 remaining) [2024-08-27 01:44:14,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 6 remaining) [2024-08-27 01:44:14,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-08-27 01:44:14,666 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-08-27 01:44:14,666 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (2/3) [2024-08-27 01:44:14,666 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-27 01:44:14,666 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-08-27 01:44:14,699 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-08-27 01:44:14,701 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:44:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 01:44:14,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:14,705 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 01:44:14,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2024-08-27 01:44:14,708 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 01:44:14,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-27 01:44:14,709 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;@53a5b182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:44:14,709 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-08-27 01:44:14,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1876792634, now seen corresponding path program 1 times [2024-08-27 01:44:14,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246281979] [2024-08-27 01:44:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-08-27 01:44:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:14,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246281979] [2024-08-27 01:44:14,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246281979] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:14,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:14,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:44:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156794525] [2024-08-27 01:44:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:14,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-27 01:44:14,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-27 01:44:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-27 01:44:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,888 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:14,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:14,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:14,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-08-27 01:44:14,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:14,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:14,969 INFO L85 PathProgramCache]: Analyzing trace with hash 173005868, now seen corresponding path program 1 times [2024-08-27 01:44:14,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:14,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345901436] [2024-08-27 01:44:14,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:14,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:15,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345901436] [2024-08-27 01:44:15,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345901436] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:15,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:15,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231968319] [2024-08-27 01:44:15,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:15,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:15,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:15,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:15,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,029 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:15,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:15,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-08-27 01:44:15,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:15,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:15,054 INFO L85 PathProgramCache]: Analyzing trace with hash -858748055, now seen corresponding path program 1 times [2024-08-27 01:44:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:15,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687199653] [2024-08-27 01:44:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:15,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:15,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-27 01:44:15,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:15,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687199653] [2024-08-27 01:44:15,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687199653] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:15,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:15,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:44:15,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573452139] [2024-08-27 01:44:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:15,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:15,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-08-27 01:44:15,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:15,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:15,185 INFO L85 PathProgramCache]: Analyzing trace with hash 722552985, now seen corresponding path program 1 times [2024-08-27 01:44:15,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:15,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770175905] [2024-08-27 01:44:15,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:15,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:15,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:15,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770175905] [2024-08-27 01:44:15,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770175905] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 01:44:15,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127782177] [2024-08-27 01:44:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:15,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:15,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:15,252 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 01:44:15,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-08-27 01:44:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:15,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-27 01:44:15,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 01:44:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:15,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 01:44:15,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127782177] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 01:44:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-08-27 01:44:15,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241085914] [2024-08-27 01:44:15,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:15,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 01:44:15,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:15,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 01:44:15,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,477 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:15,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:15,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:15,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-08-27 01:44:15,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-08-27 01:44:15,768 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:15,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash 858172304, now seen corresponding path program 1 times [2024-08-27 01:44:15,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:15,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996825062] [2024-08-27 01:44:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-08-27 01:44:15,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:15,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996825062] [2024-08-27 01:44:15,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996825062] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:15,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:15,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:15,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855779936] [2024-08-27 01:44:15,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:15,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 01:44:15,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 01:44:15,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-08-27 01:44:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,892 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:15,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:15,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:15,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:15,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-08-27 01:44:15,951 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-08-27 01:44:15,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:15,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1949265679, now seen corresponding path program 1 times [2024-08-27 01:44:15,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:15,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681528365] [2024-08-27 01:44:15,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:15,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 01:44:16,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-27 01:44:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 01:44:16,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-27 01:44:16,196 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-27 01:44:16,196 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-08-27 01:44:16,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-08-27 01:44:16,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-08-27 01:44:16,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 6 remaining) [2024-08-27 01:44:16,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 6 remaining) [2024-08-27 01:44:16,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 6 remaining) [2024-08-27 01:44:16,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-08-27 01:44:16,198 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-08-27 01:44:16,198 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/4) [2024-08-27 01:44:16,199 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-08-27 01:44:16,199 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-08-27 01:44:16,228 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-08-27 01:44:16,230 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:44:16,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 01:44:16,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:16,232 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 01:44:16,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2024-08-27 01:44:16,236 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 01:44:16,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2024-08-27 01:44:16,237 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;@53a5b182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 01:44:16,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-08-27 01:44:16,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:16,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:16,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1126655845, now seen corresponding path program 1 times [2024-08-27 01:44:16,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:16,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707854125] [2024-08-27 01:44:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:16,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-08-27 01:44:16,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707854125] [2024-08-27 01:44:16,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707854125] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:16,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:16,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 01:44:16,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909245149] [2024-08-27 01:44:16,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:16,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-27 01:44:16,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:16,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-27 01:44:16,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-27 01:44:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,480 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:16,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:16,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-08-27 01:44:16,582 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:16,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1206525538, now seen corresponding path program 1 times [2024-08-27 01:44:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:16,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702948099] [2024-08-27 01:44:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:16,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-08-27 01:44:16,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:16,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702948099] [2024-08-27 01:44:16,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702948099] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:16,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597203377] [2024-08-27 01:44:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:16,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:16,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:16,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:16,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,645 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:16,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:16,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:16,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:16,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-08-27 01:44:16,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:16,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:16,824 INFO L85 PathProgramCache]: Analyzing trace with hash -225696759, now seen corresponding path program 1 times [2024-08-27 01:44:16,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:16,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435789907] [2024-08-27 01:44:16,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-27 01:44:16,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:16,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435789907] [2024-08-27 01:44:16,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435789907] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-27 01:44:16,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934385026] [2024-08-27 01:44:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:16,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-27 01:44:16,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 01:44:16,916 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-27 01:44:16,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-08-27 01:44:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:17,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2024-08-27 01:44:17,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-27 01:44:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-08-27 01:44:17,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-27 01:44:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934385026] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:17,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-27 01:44:17,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-08-27 01:44:17,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511949337] [2024-08-27 01:44:17,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:17,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 01:44:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 01:44:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:17,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:17,153 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:17,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:17,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:17,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:17,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:17,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-08-27 01:44:17,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-08-27 01:44:17,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:17,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 814568026, now seen corresponding path program 1 times [2024-08-27 01:44:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:17,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972488192] [2024-08-27 01:44:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:18,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:18,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972488192] [2024-08-27 01:44:18,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972488192] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:18,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:18,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 01:44:18,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456205279] [2024-08-27 01:44:18,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:18,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 01:44:18,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:18,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 01:44:18,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 01:44:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,053 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:18,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:18,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:18,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:18,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-08-27 01:44:18,311 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:18,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1171931002, now seen corresponding path program 1 times [2024-08-27 01:44:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:18,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914246725] [2024-08-27 01:44:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:18,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:18,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914246725] [2024-08-27 01:44:18,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914246725] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:18,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:18,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 01:44:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127478830] [2024-08-27 01:44:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:18,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-08-27 01:44:18,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-08-27 01:44:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-08-27 01:44:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,424 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:18,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 39.5) internal successors, (158), 5 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:18,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:18,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:18,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-08-27 01:44:18,819 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:18,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:18,819 INFO L85 PathProgramCache]: Analyzing trace with hash -159177831, now seen corresponding path program 1 times [2024-08-27 01:44:18,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310757377] [2024-08-27 01:44:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:19,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:19,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310757377] [2024-08-27 01:44:19,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310757377] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:19,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:19,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-27 01:44:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718184695] [2024-08-27 01:44:19,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:19,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 01:44:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:19,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 01:44:19,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:19,007 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:19,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:19,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:19,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:19,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:19,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:19,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:19,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:19,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-08-27 01:44:19,685 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:19,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1679061499, now seen corresponding path program 2 times [2024-08-27 01:44:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005552677] [2024-08-27 01:44:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:19,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:19,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:19,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005552677] [2024-08-27 01:44:19,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005552677] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:19,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:19,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-27 01:44:19,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867431694] [2024-08-27 01:44:19,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:19,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 01:44:19,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:19,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 01:44:19,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:19,948 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:19,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:19,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:20,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-08-27 01:44:20,421 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:20,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:20,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2084918331, now seen corresponding path program 3 times [2024-08-27 01:44:20,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:20,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406605554] [2024-08-27 01:44:20,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:20,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:20,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:20,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406605554] [2024-08-27 01:44:20,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406605554] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:20,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:20,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 01:44:20,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112833336] [2024-08-27 01:44:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:20,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 01:44:20,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:20,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 01:44:20,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-27 01:44:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:20,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:20,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.5) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:20,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:20,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:20,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:21,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-08-27 01:44:21,687 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:21,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1812595536, now seen corresponding path program 1 times [2024-08-27 01:44:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291561188] [2024-08-27 01:44:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:21,810 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:21,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:21,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291561188] [2024-08-27 01:44:21,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291561188] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:21,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:21,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-27 01:44:21,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279487346] [2024-08-27 01:44:21,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:21,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 01:44:21,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:21,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 01:44:21,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:21,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:21,812 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:21,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:21,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:21,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:21,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:21,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:21,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:21,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:21,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:21,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:21,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:22,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:22,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-08-27 01:44:22,697 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:22,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash 389816327, now seen corresponding path program 4 times [2024-08-27 01:44:22,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:22,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953304159] [2024-08-27 01:44:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:22,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:22,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:22,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953304159] [2024-08-27 01:44:22,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953304159] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:22,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:22,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 01:44:22,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405612001] [2024-08-27 01:44:22,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:22,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 01:44:22,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:22,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 01:44:22,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-08-27 01:44:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:22,897 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:22,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.5) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:22,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:22,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:22,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:22,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:22,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:22,898 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:23,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:23,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-08-27 01:44:23,524 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:23,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:23,525 INFO L85 PathProgramCache]: Analyzing trace with hash 795673159, now seen corresponding path program 5 times [2024-08-27 01:44:23,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:23,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262280616] [2024-08-27 01:44:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:23,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:23,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262280616] [2024-08-27 01:44:23,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262280616] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:23,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:23,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-08-27 01:44:23,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335142400] [2024-08-27 01:44:23,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:23,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-08-27 01:44:23,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:23,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-08-27 01:44:23,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-08-27 01:44:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:23,721 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:23,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:23,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:23,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:23,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:23,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:29,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-08-27 01:44:29,276 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:29,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1134215398, now seen corresponding path program 1 times [2024-08-27 01:44:29,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:29,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796610507] [2024-08-27 01:44:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:29,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:29,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:29,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796610507] [2024-08-27 01:44:29,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796610507] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:29,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:29,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 01:44:29,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423161030] [2024-08-27 01:44:29,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:29,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 01:44:29,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:29,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 01:44:29,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-08-27 01:44:29,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:29,418 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:29,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:29,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:29,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:29,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:29,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:33,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-08-27 01:44:33,431 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:33,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:33,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1821453372, now seen corresponding path program 1 times [2024-08-27 01:44:33,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:33,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698045999] [2024-08-27 01:44:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:33,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698045999] [2024-08-27 01:44:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698045999] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-08-27 01:44:33,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047071286] [2024-08-27 01:44:33,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:33,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-08-27 01:44:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:33,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-08-27 01:44:33,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-08-27 01:44:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:33,554 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:33,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:33,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:33,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:33,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:33,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:37,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-08-27 01:44:37,931 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-08-27 01:44:37,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 01:44:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash 667883708, now seen corresponding path program 2 times [2024-08-27 01:44:37,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 01:44:37,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076388090] [2024-08-27 01:44:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 01:44:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 01:44:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 01:44:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-08-27 01:44:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 01:44:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076388090] [2024-08-27 01:44:38,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076388090] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 01:44:38,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 01:44:38,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-08-27 01:44:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422112979] [2024-08-27 01:44:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 01:44:38,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-27 01:44:38,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 01:44:38,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-27 01:44:38,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-08-27 01:44:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:38,134 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 01:44:38,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-08-27 01:44:38,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 01:44:38,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:38,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:38,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:38,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-08-27 01:44:38,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-27 01:44:38,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.