./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/protection-local/28-race_reach_11-ptr_racing.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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_11-ptr_racing.i ./goblint.2024-09-02_08-21-23.files/protection-local/28-race_reach_11-ptr_racing.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-24 11:32:43,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-24 11:32:43,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-24 11:32:43,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-24 11:32:43,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-24 11:32:43,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-24 11:32:43,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-24 11:32:43,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-24 11:32:43,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-24 11:32:43,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-24 11:32:43,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-24 11:32:43,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-24 11:32:43,975 INFO L153 SettingsManager]: * Use SBE=true [2024-09-24 11:32:43,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-24 11:32:43,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-24 11:32:43,976 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-24 11:32:43,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-24 11:32:43,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-24 11:32:43,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-24 11:32:43,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-24 11:32:43,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-24 11:32:43,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-24 11:32:43,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-24 11:32:43,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-24 11:32:43,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-24 11:32:43,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-24 11:32:43,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-24 11:32:43,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-24 11:32:43,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-24 11:32:43,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-24 11:32:43,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 11:32:43,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-24 11:32:43,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-24 11:32:43,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-24 11:32:43,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-24 11:32:43,983 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-24 11:32:43,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-24 11:32:43,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-24 11:32:43,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-24 11:32:43,985 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-24 11:32:43,985 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-24 11:32:43,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-24 11:32:44,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-24 11:32:44,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-24 11:32:44,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-24 11:32:44,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-24 11:32:44,257 INFO L274 PluginConnector]: CDTParser initialized [2024-09-24 11:32:44,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i [2024-09-24 11:32:45,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-24 11:32:45,827 INFO L384 CDTParser]: Found 1 translation units. [2024-09-24 11:32:45,829 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i [2024-09-24 11:32:45,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4b4baef3d/b47062f31a764fe6b71f4dc9ed089b08/FLAG65c5c78ca [2024-09-24 11:32:46,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4b4baef3d/b47062f31a764fe6b71f4dc9ed089b08 [2024-09-24 11:32:46,169 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-24 11:32:46,173 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-24 11:32:46,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-local/28-race_reach_11-ptr_racing.yml/witness.yml [2024-09-24 11:32:46,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-24 11:32:46,223 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-24 11:32:46,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-24 11:32:46,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-24 11:32:46,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-24 11:32:46,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:32:46" (1/2) ... [2024-09-24 11:32:46,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589aacaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:46, skipping insertion in model container [2024-09-24 11:32:46,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:32:46" (1/2) ... [2024-09-24 11:32:46,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a1cb3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:32:46, skipping insertion in model container [2024-09-24 11:32:46,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 11:32:46" (2/2) ... [2024-09-24 11:32:46,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589aacaf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46, skipping insertion in model container [2024-09-24 11:32:46,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 11:32:46" (2/2) ... [2024-09-24 11:32:46,251 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-24 11:32:46,252 INFO L1541 ArrayList]: Location invariant before [L710-L710] 0 <= global [2024-09-24 11:32:46,252 INFO L1541 ArrayList]: Location invariant before [L703-L703] 1 <= global [2024-09-24 11:32:46,252 INFO L1541 ArrayList]: Location invariant before [L703-L703] 0 <= global [2024-09-24 11:32:46,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-24 11:32:46,633 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i[30176,30189] [2024-09-24 11:32:46,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 11:32:46,700 INFO L200 MainTranslator]: Completed pre-run [2024-09-24 11:32:46,735 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_11-ptr_racing.i[30176,30189] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-24 11:32:46,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-24 11:32:46,808 INFO L204 MainTranslator]: Completed translation [2024-09-24 11:32:46,809 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46 WrapperNode [2024-09-24 11:32:46,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-24 11:32:46,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-24 11:32:46,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-24 11:32:46,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-24 11:32:46,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,855 INFO L138 Inliner]: procedures = 171, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2024-09-24 11:32:46,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-24 11:32:46,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-24 11:32:46,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-24 11:32:46,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-24 11:32:46,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,869 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-24 11:32:46,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-24 11:32:46,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-24 11:32:46,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-24 11:32:46,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (1/1) ... [2024-09-24 11:32:46,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-24 11:32:46,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:46,917 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) [2024-09-24 11:32:46,920 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 [2024-09-24 11:32:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-24 11:32:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-24 11:32:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-24 11:32:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-24 11:32:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-24 11:32:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-09-24 11:32:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-09-24 11:32:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-24 11:32:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-24 11:32:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-24 11:32:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-24 11:32:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-24 11:32:46,957 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-24 11:32:47,059 INFO L242 CfgBuilder]: Building ICFG [2024-09-24 11:32:47,061 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-24 11:32:47,236 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-24 11:32:47,236 INFO L291 CfgBuilder]: Performing block encoding [2024-09-24 11:32:47,433 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-24 11:32:47,433 INFO L318 CfgBuilder]: Removed 10 assume(true) statements. [2024-09-24 11:32:47,434 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:32:47 BoogieIcfgContainer [2024-09-24 11:32:47,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-24 11:32:47,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-24 11:32:47,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-24 11:32:47,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-24 11:32:47,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:32:46" (1/4) ... [2024-09-24 11:32:47,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f1983b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:32:47, skipping insertion in model container [2024-09-24 11:32:47,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 24.09 11:32:46" (2/4) ... [2024-09-24 11:32:47,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f1983b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 11:32:47, skipping insertion in model container [2024-09-24 11:32:47,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 24.09 11:32:46" (3/4) ... [2024-09-24 11:32:47,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f1983b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 24.09 11:32:47, skipping insertion in model container [2024-09-24 11:32:47,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:32:47" (4/4) ... [2024-09-24 11:32:47,446 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i [2024-09-24 11:32:47,461 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-24 11:32:47,461 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-24 11:32:47,461 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-24 11:32:47,499 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-09-24 11:32:47,543 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:47,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:32:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:47,545 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) [2024-09-24 11:32:47,547 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 [2024-09-24 11:32:47,582 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:32:47,595 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-09-24 11:32:47,603 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:47,604 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:32:47,724 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:47,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:47,729 INFO L85 PathProgramCache]: Analyzing trace with hash 721996959, now seen corresponding path program 1 times [2024-09-24 11:32:47,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:47,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965021326] [2024-09-24 11:32:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:32:47,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:47,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965021326] [2024-09-24 11:32:47,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965021326] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:47,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:47,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:32:47,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776334404] [2024-09-24 11:32:47,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:47,935 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:32:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:32:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:32:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:47,962 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:47,963 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2024-09-24 11:32:47,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:47,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:47,993 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-24 11:32:47,993 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:47,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:47,994 INFO L85 PathProgramCache]: Analyzing trace with hash 993122530, now seen corresponding path program 1 times [2024-09-24 11:32:47,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:47,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247428432] [2024-09-24 11:32:47,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:47,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:48,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:48,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247428432] [2024-09-24 11:32:48,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247428432] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:48,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741852429] [2024-09-24 11:32:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:48,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:48,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:48,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:32:48,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-24 11:32:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:48,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-24 11:32:48,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:48,801 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:32:48,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:32:48,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:48,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:48,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:32:48,988 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_32 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_32) |c_~#global~0.base|) |c_~#global~0.offset|) 1))) is different from false [2024-09-24 11:32:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2024-09-24 11:32:49,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741852429] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:32:49,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:32:49,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2024-09-24 11:32:49,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748223253] [2024-09-24 11:32:49,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:32:49,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 11:32:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:49,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 11:32:49,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=26, Unknown=1, NotChecked=10, Total=56 [2024-09-24 11:32:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:49,033 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:49,033 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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) [2024-09-24 11:32:49,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:49,033 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:49,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:49,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-24 11:32:49,307 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-24 11:32:49,308 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:49,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:49,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2052894315, now seen corresponding path program 1 times [2024-09-24 11:32:49,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:49,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56390171] [2024-09-24 11:32:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:49,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56390171] [2024-09-24 11:32:49,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56390171] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:49,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:49,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:32:49,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529748753] [2024-09-24 11:32:49,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:49,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:32:49,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:49,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:32:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:32:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:49,557 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:49,557 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2024-09-24 11:32:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:49,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:50,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:32:50,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:32:50,098 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-24 11:32:50,099 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:50,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1932271531, now seen corresponding path program 2 times [2024-09-24 11:32:50,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:50,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160604208] [2024-09-24 11:32:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:50,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:50,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160604208] [2024-09-24 11:32:50,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160604208] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:50,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259615125] [2024-09-24 11:32:50,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 11:32:50,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:50,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:50,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:32:50,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-24 11:32:50,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 11:32:50,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 11:32:50,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-24 11:32:50,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:50,471 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:32:50,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:32:50,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:50,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:32:50,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:50,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:32:50,728 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_84 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_84) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:32:50,841 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_84 (Array Int Int)) (v_ArrVal_83 Int)) (let ((.cse0 (select |c_#memory_int| |c_~#global~0.base|))) (or (< v_ArrVal_83 (+ (select .cse0 |c_~#global~0.offset|) 1)) (< 0 (select (select (store (store |c_#memory_int| |c_~#global~0.base| (store .cse0 |c_~#global~0.offset| v_ArrVal_83)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_84) |c_~#global~0.base|) |c_~#global~0.offset|))))) is different from false [2024-09-24 11:32:50,865 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_84 (Array Int Int)) (v_ArrVal_81 (Array Int Int)) (v_ArrVal_83 Int)) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_81) |c_~#global~0.base|))) (or (< v_ArrVal_83 (+ (select .cse0 |c_~#global~0.offset|) 1)) (< 0 (select (select (store (store |c_#memory_int| |c_~#global~0.base| (store .cse0 |c_~#global~0.offset| v_ArrVal_83)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_84) |c_~#global~0.base|) |c_~#global~0.offset|))))) is different from false [2024-09-24 11:32:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-09-24 11:32:50,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259615125] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:32:50,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:32:50,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 12 [2024-09-24 11:32:50,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411290885] [2024-09-24 11:32:50,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:32:50,868 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-24 11:32:50,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:50,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-24 11:32:50,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=81, Unknown=4, NotChecked=60, Total=182 [2024-09-24 11:32:50,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:50,869 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:50,869 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 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) [2024-09-24 11:32:50,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:50,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:32:50,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:32:50,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:32:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:32:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:51,238 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:32:51,239 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:32:51,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-24 11:32:51,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:51,445 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-09-24 11:32:51,446 INFO L312 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE,SAFE (1/2) [2024-09-24 11:32:51,450 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:32:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:51,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:32:51,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-09-24 11:32:51,455 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:32:51,455 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 11:32:51,456 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:51,456 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-24 11:32:51,493 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:51,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:51,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1832713690, now seen corresponding path program 1 times [2024-09-24 11:32:51,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:51,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866670258] [2024-09-24 11:32:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:51,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:51,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:51,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866670258] [2024-09-24 11:32:51,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866670258] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:51,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:51,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:32:51,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227154441] [2024-09-24 11:32:51,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:51,509 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:32:51,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:51,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:32:51,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:32:51,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,510 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:51,510 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2024-09-24 11:32:51,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,530 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-24 11:32:51,531 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:51,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:51,531 INFO L85 PathProgramCache]: Analyzing trace with hash 775091032, now seen corresponding path program 1 times [2024-09-24 11:32:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:51,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624907993] [2024-09-24 11:32:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:32:51,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-24 11:32:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:32:51,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-24 11:32:51,561 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-24 11:32:51,562 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-09-24 11:32:51,562 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-24 11:32:51,562 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-24 11:32:51,562 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-24 11:32:51,564 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-24 11:32:51,564 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/2) [2024-09-24 11:32:51,565 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-24 11:32:51,565 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-09-24 11:32:51,580 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-24 11:32:51,582 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:51,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:32:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:51,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:32:51,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-09-24 11:32:51,589 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:32:51,589 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2024-09-24 11:32:51,590 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:51,591 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:32:51,810 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:51,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:51,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1118666366, now seen corresponding path program 1 times [2024-09-24 11:32:51,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:51,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189221286] [2024-09-24 11:32:51,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:51,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:51,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:51,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189221286] [2024-09-24 11:32:51,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189221286] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:51,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:51,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:32:51,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160221350] [2024-09-24 11:32:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:51,875 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:32:51,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:51,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:32:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:32:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,876 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:51,876 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:32:51,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:51,902 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-24 11:32:51,902 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:51,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash 667192482, now seen corresponding path program 1 times [2024-09-24 11:32:51,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:51,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892674929] [2024-09-24 11:32:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:51,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:52,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:52,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892674929] [2024-09-24 11:32:52,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892674929] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:52,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778736665] [2024-09-24 11:32:52,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:52,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:52,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:52,009 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) [2024-09-24 11:32:52,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-24 11:32:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:52,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-24 11:32:52,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:52,117 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:32:52,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:32:52,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:52,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:52,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:32:52,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:52,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778736665] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:32:52,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:32:52,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2024-09-24 11:32:52,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693808290] [2024-09-24 11:32:52,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:32:52,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 11:32:52,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:52,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 11:32:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=33, Unknown=2, NotChecked=0, Total=56 [2024-09-24 11:32:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:52,246 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:52,247 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-09-24 11:32:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:52,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:52,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-24 11:32:52,524 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:52,524 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:52,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash -216612185, now seen corresponding path program 1 times [2024-09-24 11:32:52,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:52,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17315566] [2024-09-24 11:32:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:52,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:52,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:52,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17315566] [2024-09-24 11:32:52,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17315566] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:52,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742694741] [2024-09-24 11:32:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:52,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:52,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:52,748 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) [2024-09-24 11:32:52,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-24 11:32:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:52,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:32:52,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:52,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:32:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:32:52,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:32:52,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:52,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:32:52,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742694741] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:52,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:32:52,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-09-24 11:32:52,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860450241] [2024-09-24 11:32:52,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:52,977 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:32:52,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:52,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:32:52,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-24 11:32:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:52,978 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:52,978 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:32:52,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:52,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:52,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:53,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-24 11:32:53,214 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-09-24 11:32:53,215 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:53,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash -69474040, now seen corresponding path program 1 times [2024-09-24 11:32:53,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:53,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093583209] [2024-09-24 11:32:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:53,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:53,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093583209] [2024-09-24 11:32:53,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093583209] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343043087] [2024-09-24 11:32:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:53,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:53,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:53,422 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:32:53,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-24 11:32:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:53,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-24 11:32:53,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:53,528 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:32:53,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:32:53,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:32:53,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:53,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:32:53,754 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_221 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_221) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:32:53,820 INFO L349 Elim1Store]: treesize reduction 17, result has 70.2 percent of original size [2024-09-24 11:32:53,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 53 [2024-09-24 11:32:53,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:32:53,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2024-09-24 11:32:53,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:32:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2024-09-24 11:32:53,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343043087] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:32:53,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:32:53,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 13 [2024-09-24 11:32:53,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041488998] [2024-09-24 11:32:53,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:32:53,938 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:32:53,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:53,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:32:53,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=132, Unknown=1, NotChecked=24, Total=210 [2024-09-24 11:32:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:53,940 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:53,940 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 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) [2024-09-24 11:32:53,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:53,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:53,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:53,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:54,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-24 11:32:54,975 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:54,976 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:54,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash 542450821, now seen corresponding path program 1 times [2024-09-24 11:32:54,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:54,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376272886] [2024-09-24 11:32:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:32:55,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:55,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376272886] [2024-09-24 11:32:55,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376272886] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:55,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:55,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:32:55,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181741651] [2024-09-24 11:32:55,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:55,073 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:32:55,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:55,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:32:55,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:32:55,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:55,074 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:55,075 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:32:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:55,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,184 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-24 11:32:55,184 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:55,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:55,185 INFO L85 PathProgramCache]: Analyzing trace with hash 863978765, now seen corresponding path program 2 times [2024-09-24 11:32:55,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:55,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617584751] [2024-09-24 11:32:55,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:55,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:55,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:55,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617584751] [2024-09-24 11:32:55,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617584751] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:55,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695745141] [2024-09-24 11:32:55,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 11:32:55,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:55,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:55,305 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:32:55,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-24 11:32:55,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-24 11:32:55,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 11:32:55,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-24 11:32:55,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:55,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:32:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:32:55,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:32:55,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:32:55,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:32:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695745141] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:55,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:32:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-09-24 11:32:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361246304] [2024-09-24 11:32:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:55,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-24 11:32:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-24 11:32:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-24 11:32:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:55,639 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:55,639 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:32:55,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:55,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:55,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:55,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:55,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-24 11:32:55,998 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:55,998 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:32:55,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:55,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1955331126, now seen corresponding path program 1 times [2024-09-24 11:32:55,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:55,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880185178] [2024-09-24 11:32:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:55,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:56,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880185178] [2024-09-24 11:32:56,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880185178] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:56,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805680381] [2024-09-24 11:32:56,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:56,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:56,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:56,068 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) [2024-09-24 11:32:56,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-24 11:32:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:56,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-24 11:32:56,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:56,216 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:32:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:56,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805680381] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:32:56,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:32:56,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-24 11:32:56,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137876105] [2024-09-24 11:32:56,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:32:56,257 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-24 11:32:56,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:56,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-24 11:32:56,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-24 11:32:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:56,257 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:56,258 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:56,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:32:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:32:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:32:56,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:32:56,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:32:56,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-24 11:32:56,815 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-24 11:32:56,817 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-09-24 11:32:56,817 INFO L312 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE,SAFE (1/3) [2024-09-24 11:32:56,819 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:32:56,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:56,821 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) [2024-09-24 11:32:56,823 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 [2024-09-24 11:32:56,824 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:32:56,824 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 11:32:56,825 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:56,825 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-24 11:32:56,885 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:56,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:56,886 INFO L85 PathProgramCache]: Analyzing trace with hash 228433215, now seen corresponding path program 1 times [2024-09-24 11:32:56,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:56,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460422940] [2024-09-24 11:32:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:56,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:32:56,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:56,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460422940] [2024-09-24 11:32:56,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460422940] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:56,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:56,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:32:56,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934124826] [2024-09-24 11:32:56,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:56,902 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:32:56,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:56,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:32:56,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:32:56,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:56,903 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:56,904 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 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) [2024-09-24 11:32:56,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:56,949 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-24 11:32:56,949 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:56,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:56,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1442656876, now seen corresponding path program 1 times [2024-09-24 11:32:56,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:56,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121803094] [2024-09-24 11:32:56,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:56,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:32:56,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:56,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121803094] [2024-09-24 11:32:56,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121803094] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:56,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:56,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:32:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752321902] [2024-09-24 11:32:56,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:56,991 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:32:56,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:32:56,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:32:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:56,992 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:57,016 INFO L475 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) [2024-09-24 11:32:57,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,043 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-24 11:32:57,044 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1221862376, now seen corresponding path program 1 times [2024-09-24 11:32:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339279909] [2024-09-24 11:32:57,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:32:57,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:57,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339279909] [2024-09-24 11:32:57,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339279909] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:57,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:57,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:32:57,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102387326] [2024-09-24 11:32:57,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:57,134 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:32:57,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:57,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:32:57,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:32:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,135 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:57,135 INFO L475 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) [2024-09-24 11:32:57,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,200 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-24 11:32:57,200 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1802131794, now seen corresponding path program 1 times [2024-09-24 11:32:57,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571438220] [2024-09-24 11:32:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:57,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571438220] [2024-09-24 11:32:57,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571438220] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:57,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:57,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:32:57,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933821772] [2024-09-24 11:32:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:57,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:32:57,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:32:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:32:57,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,311 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:57,311 INFO L475 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) [2024-09-24 11:32:57,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:57,339 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-24 11:32:57,339 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,339 INFO L85 PathProgramCache]: Analyzing trace with hash 561251309, now seen corresponding path program 1 times [2024-09-24 11:32:57,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82118324] [2024-09-24 11:32:57,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:32:57,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-24 11:32:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:32:57,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-24 11:32:57,366 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-24 11:32:57,366 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-09-24 11:32:57,366 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-24 11:32:57,366 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-24 11:32:57,366 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-24 11:32:57,367 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-24 11:32:57,368 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (2/3) [2024-09-24 11:32:57,368 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-24 11:32:57,368 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-09-24 11:32:57,386 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-24 11:32:57,388 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:32:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:57,390 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:32:57,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2024-09-24 11:32:57,393 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:32:57,394 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 11:32:57,394 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:32:57,394 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-24 11:32:57,487 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash 864573415, now seen corresponding path program 1 times [2024-09-24 11:32:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512513492] [2024-09-24 11:32:57,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-24 11:32:57,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:57,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512513492] [2024-09-24 11:32:57,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512513492] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:57,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:57,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:32:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621057181] [2024-09-24 11:32:57,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:57,507 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:32:57,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:57,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:32:57,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:32:57,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,507 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:57,508 INFO L475 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) [2024-09-24 11:32:57,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,577 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-24 11:32:57,577 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,578 INFO L85 PathProgramCache]: Analyzing trace with hash 297746389, now seen corresponding path program 1 times [2024-09-24 11:32:57,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233367769] [2024-09-24 11:32:57,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:32:57,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:57,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233367769] [2024-09-24 11:32:57,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233367769] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:57,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:57,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:32:57,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525076859] [2024-09-24 11:32:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:57,659 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:32:57,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:32:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:32:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,660 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:57,661 INFO L475 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) [2024-09-24 11:32:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,692 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-24 11:32:57,692 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1452624643, now seen corresponding path program 1 times [2024-09-24 11:32:57,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007447176] [2024-09-24 11:32:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:32:57,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:57,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007447176] [2024-09-24 11:32:57,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007447176] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:57,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:32:57,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:32:57,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73010971] [2024-09-24 11:32:57,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:57,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:32:57,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:57,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:32:57,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:32:57,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,769 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:57,769 INFO L475 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) [2024-09-24 11:32:57,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:57,864 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-24 11:32:57,864 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:57,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1890885702, now seen corresponding path program 1 times [2024-09-24 11:32:57,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659860290] [2024-09-24 11:32:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:58,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:58,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659860290] [2024-09-24 11:32:58,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659860290] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:58,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952230121] [2024-09-24 11:32:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:58,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:58,074 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:32:58,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-24 11:32:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:58,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:32:58,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:58,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:32:58,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:32:58,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:58,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:32:58,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:32:58,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:32:58,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952230121] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:32:58,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:32:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-24 11:32:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680267799] [2024-09-24 11:32:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:32:58,338 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:32:58,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:32:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:32:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-24 11:32:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:58,338 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:32:58,339 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 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) [2024-09-24 11:32:58,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:58,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:58,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:58,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:32:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:32:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:32:58,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-24 11:32:58,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-24 11:32:58,588 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:32:58,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:32:58,588 INFO L85 PathProgramCache]: Analyzing trace with hash 192116709, now seen corresponding path program 1 times [2024-09-24 11:32:58,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:32:58,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025614927] [2024-09-24 11:32:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:58,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:32:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:58,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:32:58,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025614927] [2024-09-24 11:32:58,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025614927] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:32:58,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520707693] [2024-09-24 11:32:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:32:58,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:32:58,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:32:58,775 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:32:58,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-24 11:32:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:32:58,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-24 11:32:58,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:32:58,908 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:32:58,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:32:59,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:32:59,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:32:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:32:59,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:33:00,009 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:33:00,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-09-24 11:33:00,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:33:00,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2024-09-24 11:33:00,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:33:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:33:00,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520707693] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:33:00,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:33:00,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-24 11:33:00,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787607089] [2024-09-24 11:33:00,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:33:00,117 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-24 11:33:00,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:00,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-24 11:33:00,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=124, Unknown=6, NotChecked=0, Total=182 [2024-09-24 11:33:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,118 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:00,118 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 states have internal predecessors, (58), 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) [2024-09-24 11:33:00,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:00,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:00,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:33:00,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:33:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:00,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-24 11:33:00,511 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:33:00,512 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:33:00,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1251908955, now seen corresponding path program 1 times [2024-09-24 11:33:00,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:00,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309948795] [2024-09-24 11:33:00,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:00,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:33:00,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-24 11:33:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:33:00,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-24 11:33:00,548 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-24 11:33:00,548 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-09-24 11:33:00,548 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-24 11:33:00,549 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-24 11:33:00,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-09-24 11:33:00,551 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-09-24 11:33:00,551 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (1/4) [2024-09-24 11:33:00,551 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-24 11:33:00,551 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-09-24 11:33:00,571 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-09-24 11:33:00,573 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:33:00,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:33:00,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:33:00,575 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:33:00,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2024-09-24 11:33:00,579 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:33:00,579 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2024-09-24 11:33:00,580 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:33:00,580 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:33:00,725 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:00,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:00,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1394896214, now seen corresponding path program 1 times [2024-09-24 11:33:00,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:00,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589092268] [2024-09-24 11:33:00,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:00,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-24 11:33:00,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:00,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589092268] [2024-09-24 11:33:00,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589092268] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:00,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:00,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:33:00,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261772264] [2024-09-24 11:33:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:00,743 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:33:00,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:33:00,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:33:00,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,744 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:00,744 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:33:00,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,849 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-24 11:33:00,849 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:00,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:00,850 INFO L85 PathProgramCache]: Analyzing trace with hash 654918493, now seen corresponding path program 1 times [2024-09-24 11:33:00,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:00,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407559783] [2024-09-24 11:33:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:00,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-24 11:33:00,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:00,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407559783] [2024-09-24 11:33:00,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407559783] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:00,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:00,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:33:00,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996948569] [2024-09-24 11:33:00,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:00,904 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:33:00,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:00,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:33:00,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:33:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,905 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:00,905 INFO L475 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) [2024-09-24 11:33:00,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:00,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,078 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-09-24 11:33:01,079 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:01,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:01,079 INFO L85 PathProgramCache]: Analyzing trace with hash -820673825, now seen corresponding path program 1 times [2024-09-24 11:33:01,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:01,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841797294] [2024-09-24 11:33:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:01,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-24 11:33:01,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:01,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841797294] [2024-09-24 11:33:01,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841797294] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:01,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:01,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:33:01,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791286039] [2024-09-24 11:33:01,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:01,134 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:33:01,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:01,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:33:01,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:33:01,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,135 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:01,135 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2024-09-24 11:33:01,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,300 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-09-24 11:33:01,300 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:01,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:01,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1090927236, now seen corresponding path program 1 times [2024-09-24 11:33:01,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:01,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796293137] [2024-09-24 11:33:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-24 11:33:01,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:01,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796293137] [2024-09-24 11:33:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796293137] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:01,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:01,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:33:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241855985] [2024-09-24 11:33:01,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:01,378 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:33:01,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:01,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:33:01,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:33:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,379 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:01,379 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-09-24 11:33:01,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,702 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-09-24 11:33:01,702 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:01,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:01,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1300175014, now seen corresponding path program 1 times [2024-09-24 11:33:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:01,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835341367] [2024-09-24 11:33:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-24 11:33:01,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:01,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835341367] [2024-09-24 11:33:01,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835341367] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:01,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:01,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:33:01,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538006493] [2024-09-24 11:33:01,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:01,955 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:33:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:33:01,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:33:01,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,956 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:01,956 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-09-24 11:33:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:01,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:02,129 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-09-24 11:33:02,129 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:02,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2085247047, now seen corresponding path program 1 times [2024-09-24 11:33:02,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:02,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758363561] [2024-09-24 11:33:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-24 11:33:02,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:02,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758363561] [2024-09-24 11:33:02,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758363561] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:02,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:02,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:33:02,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668985746] [2024-09-24 11:33:02,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:02,327 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:33:02,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:02,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:33:02,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:33:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:02,328 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:02,328 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-09-24 11:33:02,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:02,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:02,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:02,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:02,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-09-24 11:33:02,564 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:02,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash 846758465, now seen corresponding path program 2 times [2024-09-24 11:33:02,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:02,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95172841] [2024-09-24 11:33:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:02,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-24 11:33:03,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:03,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95172841] [2024-09-24 11:33:03,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95172841] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:33:03,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:33:03,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-24 11:33:03,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314660177] [2024-09-24 11:33:03,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:33:03,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 11:33:03,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:33:03,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 11:33:03,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-24 11:33:03,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:03,143 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:33:03,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:03,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:33:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:33:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:33:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:33:03,857 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-09-24 11:33:03,857 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:33:03,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:33:03,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1193718665, now seen corresponding path program 3 times [2024-09-24 11:33:03,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:33:03,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286389625] [2024-09-24 11:33:03,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:33:03,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:33:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:33:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:33:04,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:33:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286389625] [2024-09-24 11:33:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286389625] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:33:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699247984] [2024-09-24 11:33:04,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-24 11:33:04,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:33:04,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:33:04,828 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:33:04,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-24 11:33:04,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-24 11:33:04,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 11:33:04,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-24 11:33:04,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:33:04,998 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:33:04,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:33:05,267 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2024-09-24 11:33:05,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 40 [2024-09-24 11:33:05,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-09-24 11:33:05,711 INFO L349 Elim1Store]: treesize reduction 20, result has 58.3 percent of original size [2024-09-24 11:33:05,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 57 [2024-09-24 11:33:06,077 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2024-09-24 11:33:06,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 60 [2024-09-24 11:33:06,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2024-09-24 11:33:06,446 INFO L349 Elim1Store]: treesize reduction 18, result has 60.9 percent of original size [2024-09-24 11:33:06,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 54 [2024-09-24 11:33:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-24 11:33:06,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:33:16,170 WARN L854 $PredicateComparison]: unable to prove that (forall ((t_funThread3of4ForFork0_~p~0.offset Int) (v_ArrVal_1153 Int) (t_funThread3of4ForFork0_~p~0.base Int) (v_ArrVal_1152 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1152))) (let ((.cse5 (select .cse1 t_funThread3of4ForFork0_~p~0.base))) (let ((.cse8 (store .cse1 t_funThread3of4ForFork0_~p~0.base (store .cse5 t_funThread3of4ForFork0_~p~0.offset v_ArrVal_1153)))) (let ((.cse2 (let ((.cse9 (select .cse8 c_t_funThread2of4ForFork0_~p~0.base))) (store .cse9 c_t_funThread2of4ForFork0_~p~0.offset (+ (- 1) (select .cse9 c_t_funThread2of4ForFork0_~p~0.offset)))))) (let ((.cse6 (store .cse8 c_t_funThread2of4ForFork0_~p~0.base .cse2))) (let ((.cse3 (let ((.cse7 (select .cse6 c_t_funThread4of4ForFork0_~p~0.base))) (store .cse7 c_t_funThread4of4ForFork0_~p~0.offset (+ (select .cse7 c_t_funThread4of4ForFork0_~p~0.offset) 1))))) (let ((.cse0 (store .cse6 c_t_funThread4of4ForFork0_~p~0.base .cse3))) (or (< (select (select .cse0 |c_~#global~0.base|) |c_~#global~0.offset|) 1) (< 0 (select (select (store (store (store .cse1 c_t_funThread2of4ForFork0_~p~0.base .cse2) c_t_funThread4of4ForFork0_~p~0.base .cse3) t_funThread3of4ForFork0_~p~0.base (let ((.cse4 (select .cse0 t_funThread3of4ForFork0_~p~0.base))) (store .cse4 t_funThread3of4ForFork0_~p~0.offset (+ (- 1) (select .cse4 t_funThread3of4ForFork0_~p~0.offset))))) |c_~#global~0.base|) |c_~#global~0.offset|)) (< v_ArrVal_1153 (+ (select .cse5 t_funThread3of4ForFork0_~p~0.offset) 1)) (< v_ArrVal_1153 1)))))))))) is different from false [2024-09-24 11:33:17,191 WARN L854 $PredicateComparison]: unable to prove that (forall ((t_funThread3of4ForFork0_~p~0.offset Int) (v_ArrVal_1153 Int) (t_funThread2of4ForFork0_~p~0.offset Int) (t_funThread3of4ForFork0_~p~0.base Int) (t_funThread2of4ForFork0_~p~0.base Int) (v_ArrVal_1152 (Array Int Int))) (let ((.cse10 (store (store |c_#memory_int| t_funThread2of4ForFork0_~p~0.base (let ((.cse11 (select |c_#memory_int| t_funThread2of4ForFork0_~p~0.base))) (store .cse11 t_funThread2of4ForFork0_~p~0.offset (+ (select .cse11 t_funThread2of4ForFork0_~p~0.offset) 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1152))) (let ((.cse5 (select .cse10 t_funThread3of4ForFork0_~p~0.base))) (let ((.cse8 (store .cse5 t_funThread3of4ForFork0_~p~0.offset v_ArrVal_1153))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1152)) (.cse2 (let ((.cse9 (select (store .cse10 t_funThread3of4ForFork0_~p~0.base .cse8) t_funThread2of4ForFork0_~p~0.base))) (store .cse9 t_funThread2of4ForFork0_~p~0.offset (+ (- 1) (select .cse9 t_funThread2of4ForFork0_~p~0.offset)))))) (let ((.cse6 (store (store .cse1 t_funThread3of4ForFork0_~p~0.base .cse8) t_funThread2of4ForFork0_~p~0.base .cse2))) (let ((.cse3 (let ((.cse7 (select .cse6 c_t_funThread4of4ForFork0_~p~0.base))) (store .cse7 c_t_funThread4of4ForFork0_~p~0.offset (+ (select .cse7 c_t_funThread4of4ForFork0_~p~0.offset) 1))))) (let ((.cse0 (store .cse6 c_t_funThread4of4ForFork0_~p~0.base .cse3))) (or (< (select (select .cse0 |c_~#global~0.base|) |c_~#global~0.offset|) 1) (< v_ArrVal_1153 1) (< 0 (select (select (store (store (store .cse1 t_funThread2of4ForFork0_~p~0.base .cse2) c_t_funThread4of4ForFork0_~p~0.base .cse3) t_funThread3of4ForFork0_~p~0.base (let ((.cse4 (select .cse0 t_funThread3of4ForFork0_~p~0.base))) (store .cse4 t_funThread3of4ForFork0_~p~0.offset (+ (- 1) (select .cse4 t_funThread3of4ForFork0_~p~0.offset))))) |c_~#global~0.base|) |c_~#global~0.offset|)) (< v_ArrVal_1153 (+ (select .cse5 t_funThread3of4ForFork0_~p~0.offset) 1))))))))))) is different from false [2024-09-24 11:33:17,750 INFO L349 Elim1Store]: treesize reduction 42, result has 55.3 percent of original size [2024-09-24 11:33:17,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 214052 treesize of output 111203 [2024-09-24 11:33:18,766 INFO L349 Elim1Store]: treesize reduction 20, result has 59.2 percent of original size [2024-09-24 11:33:18,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94933 treesize of output 85489 [2024-09-24 11:33:21,276 INFO L349 Elim1Store]: treesize reduction 20, result has 59.2 percent of original size [2024-09-24 11:33:21,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 460074 treesize of output 435818 [2024-09-24 11:33:36,776 WARN L293 SmtUtils]: Spent 15.50s on a formula simplification. DAG size of input: 969 DAG size of output: 738 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-24 11:34:25,958 INFO L349 Elim1Store]: treesize reduction 12, result has 70.0 percent of original size [2024-09-24 11:34:25,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 384 treesize of output 396 [2024-09-24 11:34:26,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:34:26,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2024-09-24 11:34:26,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:34:26,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1695 treesize of output 1617 [2024-09-24 11:34:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 4 not checked. [2024-09-24 11:34:28,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699247984] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:34:28,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:34:28,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 32 [2024-09-24 11:34:28,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278696017] [2024-09-24 11:34:28,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:34:28,690 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-24 11:34:28,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:34:28,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-24 11:34:28,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=837, Unknown=4, NotChecked=122, Total=1122 [2024-09-24 11:34:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:34:28,693 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:34:28,693 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 7.7272727272727275) internal successors, (255), 33 states have internal predecessors, (255), 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) [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:34:28,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:34:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:34:37,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-24 11:34:37,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-24 11:34:37,387 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-24 11:34:37,387 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:34:37,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:34:37,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1001161079, now seen corresponding path program 4 times [2024-09-24 11:34:37,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:34:37,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531404201] [2024-09-24 11:34:37,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:34:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:34:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:34:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:34:39,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:34:39,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531404201] [2024-09-24 11:34:39,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531404201] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:34:39,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913986295] [2024-09-24 11:34:39,528 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-24 11:34:39,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:34:39,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:34:39,529 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:34:39,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-24 11:34:39,669 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-24 11:34:39,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 11:34:39,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-24 11:34:39,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:34:39,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:34:39,865 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-09-24 11:34:39,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 16 [2024-09-24 11:34:40,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:34:40,743 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-09-24 11:34:40,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-09-24 11:34:41,242 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2024-09-24 11:34:41,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21 [2024-09-24 11:34:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:34:41,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:34:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:34:42,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913986295] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:34:42,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:34:42,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 5] total 21 [2024-09-24 11:34:42,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738155767] [2024-09-24 11:34:42,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:34:42,305 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-24 11:34:42,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:34:42,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-24 11:34:42,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-09-24 11:34:42,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:34:42,307 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:34:42,307 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.80952380952381) internal successors, (206), 21 states have internal predecessors, (206), 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) [2024-09-24 11:34:42,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:34:42,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:42,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:42,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:34:42,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:34:42,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:34:42,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:34:42,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-09-24 11:34:42,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-24 11:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-24 11:35:05,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-24 11:35:05,199 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:05,199 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:05,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:05,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1888912067, now seen corresponding path program 1 times [2024-09-24 11:35:05,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:05,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100599553] [2024-09-24 11:35:05,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:05,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:35:05,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:05,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100599553] [2024-09-24 11:35:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100599553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:35:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471242575] [2024-09-24 11:35:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:05,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:05,597 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:35:05,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-24 11:35:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:05,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-24 11:35:05,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:35:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:35:06,301 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:35:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:35:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471242575] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:35:06,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:35:06,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-24 11:35:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903799410] [2024-09-24 11:35:06,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:35:06,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-24 11:35:06,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:06,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-24 11:35:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-24 11:35:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:06,839 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:06,839 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.076923076923077) internal successors, (157), 12 states have internal predecessors, (157), 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) [2024-09-24 11:35:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:35:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-09-24 11:35:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-24 11:35:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-24 11:35:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:09,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-24 11:35:09,746 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-24 11:35:09,746 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:09,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash -339820842, now seen corresponding path program 1 times [2024-09-24 11:35:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706173388] [2024-09-24 11:35:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:09,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 11:35:10,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:10,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706173388] [2024-09-24 11:35:10,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706173388] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:35:10,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313119243] [2024-09-24 11:35:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:10,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:10,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:10,431 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:35:10,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-24 11:35:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:10,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-24 11:35:10,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:35:10,611 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:35:10,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:35:11,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:35:11,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:11,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:35:12,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:12,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:35:12,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:35:15,009 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:35:15,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 109 treesize of output 118 [2024-09-24 11:35:15,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:35:15,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2024-09-24 11:35:15,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:35:15,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 66 [2024-09-24 11:35:15,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 71 [2024-09-24 11:35:15,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-09-24 11:35:15,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:35:15,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2024-09-24 11:35:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:35:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313119243] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:35:17,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:35:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-09-24 11:35:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747323998] [2024-09-24 11:35:17,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:35:17,568 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-24 11:35:17,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:17,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-24 11:35:17,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=167, Unknown=17, NotChecked=0, Total=272 [2024-09-24 11:35:17,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:17,569 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:17,569 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.625) internal successors, (122), 16 states have internal predecessors, (122), 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) [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-09-24 11:35:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:38,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:38,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-24 11:35:38,309 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:38,309 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:38,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1267927822, now seen corresponding path program 1 times [2024-09-24 11:35:38,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:38,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528800068] [2024-09-24 11:35:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:35:38,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:38,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528800068] [2024-09-24 11:35:38,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528800068] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:35:38,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995327569] [2024-09-24 11:35:38,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:38,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:38,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:38,873 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:35:38,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-24 11:35:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:39,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-24 11:35:39,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:35:39,054 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:35:39,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:35:39,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:35:39,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:35:40,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:40,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:35:40,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:35:40,481 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1595 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_1595) |c_~#global~0.base|) |c_~#global~0.offset|) 1))) is different from false [2024-09-24 11:35:49,076 INFO L349 Elim1Store]: treesize reduction 17, result has 70.2 percent of original size [2024-09-24 11:35:49,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 60 [2024-09-24 11:35:49,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:35:49,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 50 [2024-09-24 11:35:49,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:35:49,320 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 13 not checked. [2024-09-24 11:35:49,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995327569] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:35:49,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:35:49,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 14 [2024-09-24 11:35:49,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975007401] [2024-09-24 11:35:49,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:35:49,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-24 11:35:49,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:49,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-24 11:35:49,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=132, Unknown=10, NotChecked=26, Total=240 [2024-09-24 11:35:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:49,322 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:49,322 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.2) internal successors, (108), 15 states have internal predecessors, (108), 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) [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:51,813 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:35:51,813 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:35:51,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-24 11:35:52,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-24 11:35:52,014 INFO L408 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:35:52,015 INFO L312 ceAbstractionStarter]: Result for error location t_funThread4of4ForFork0 was SAFE,SAFE (1/5) [2024-09-24 11:35:52,016 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:35:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:35:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:52,018 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:35:52,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2024-09-24 11:35:52,022 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:35:52,022 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread2of4ForFork0 ======== [2024-09-24 11:35:52,023 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:35:52,023 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:35:52,997 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:52,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:52,997 INFO L85 PathProgramCache]: Analyzing trace with hash -525652498, now seen corresponding path program 1 times [2024-09-24 11:35:52,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:52,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178761198] [2024-09-24 11:35:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:52,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-24 11:35:53,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:53,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178761198] [2024-09-24 11:35:53,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178761198] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:35:53,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:35:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:35:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559772824] [2024-09-24 11:35:53,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:35:53,014 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:35:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:53,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:35:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:35:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,015 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:53,015 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2024-09-24 11:35:53,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,184 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-09-24 11:35:53,185 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:53,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:53,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1787277126, now seen corresponding path program 1 times [2024-09-24 11:35:53,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:53,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994486437] [2024-09-24 11:35:53,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:53,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:35:53,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:53,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994486437] [2024-09-24 11:35:53,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994486437] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:35:53,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:35:53,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:35:53,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657769452] [2024-09-24 11:35:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:35:53,251 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:35:53,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:53,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:35:53,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:35:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,252 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:53,252 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:35:53,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:53,736 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-09-24 11:35:53,736 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:53,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash -354596350, now seen corresponding path program 1 times [2024-09-24 11:35:53,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:53,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214094316] [2024-09-24 11:35:53,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:53,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-24 11:35:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:53,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214094316] [2024-09-24 11:35:53,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214094316] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:35:53,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:35:53,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:35:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783282090] [2024-09-24 11:35:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:35:53,806 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:35:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:35:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:35:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,809 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:53,810 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-09-24 11:35:53,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:53,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:53,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:54,243 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-09-24 11:35:54,243 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:54,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:54,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1389379807, now seen corresponding path program 1 times [2024-09-24 11:35:54,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:54,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737991785] [2024-09-24 11:35:54,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:54,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:35:54,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:54,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737991785] [2024-09-24 11:35:54,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737991785] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:35:54,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824784685] [2024-09-24 11:35:54,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:54,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:54,505 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:35:54,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-24 11:35:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:54,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-24 11:35:54,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:35:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:35:54,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:35:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:35:55,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824784685] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:35:55,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:35:55,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-24 11:35:55,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302229709] [2024-09-24 11:35:55,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:35:55,351 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-24 11:35:55,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:55,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-24 11:35:55,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-24 11:35:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:55,352 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:55,352 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 12 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:35:55,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:55,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:55,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:55,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:55,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-24 11:35:56,120 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-24 11:35:56,120 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:56,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash -923659987, now seen corresponding path program 1 times [2024-09-24 11:35:56,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:56,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283016674] [2024-09-24 11:35:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-24 11:35:56,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:56,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283016674] [2024-09-24 11:35:56,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283016674] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:35:56,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:35:56,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:35:56,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588174281] [2024-09-24 11:35:56,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:35:56,194 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:35:56,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:56,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:35:56,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:35:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:56,195 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:56,195 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2024-09-24 11:35:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:56,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:56,553 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-09-24 11:35:56,553 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:56,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:56,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1586690841, now seen corresponding path program 1 times [2024-09-24 11:35:56,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:56,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118986396] [2024-09-24 11:35:56,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:56,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:57,158 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:35:57,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118986396] [2024-09-24 11:35:57,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118986396] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:35:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351935126] [2024-09-24 11:35:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:57,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:57,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:57,160 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:35:57,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-24 11:35:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:57,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:35:57,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:35:57,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:35:57,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:35:57,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:57,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:35:57,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:35:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:35:57,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:35:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351935126] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:35:57,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:35:57,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-09-24 11:35:57,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860446540] [2024-09-24 11:35:57,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:35:57,880 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:35:57,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:35:57,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:35:57,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-24 11:35:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:57,880 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:35:57,880 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-09-24 11:35:57,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:57,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:57,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:57,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:57,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:57,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:35:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:35:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:35:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:35:58,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-24 11:35:58,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-09-24 11:35:58,322 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:35:58,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:35:58,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1165666328, now seen corresponding path program 1 times [2024-09-24 11:35:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:35:58,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779259066] [2024-09-24 11:35:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:58,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:35:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 11:35:58,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:35:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779259066] [2024-09-24 11:35:58,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779259066] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:35:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149827395] [2024-09-24 11:35:58,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:35:58,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:35:58,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:35:58,993 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:35:58,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-24 11:35:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:35:59,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-24 11:35:59,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:35:59,213 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:35:59,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:35:59,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:35:59,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:00,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:36:00,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:00,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:00,728 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:36:00,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:36:02,357 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:36:02,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 212 treesize of output 201 [2024-09-24 11:36:02,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:02,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 79 [2024-09-24 11:36:02,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:02,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 56 [2024-09-24 11:36:02,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-09-24 11:36:02,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:02,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2024-09-24 11:36:02,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2024-09-24 11:36:04,790 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:36:04,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149827395] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:36:04,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:36:04,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-09-24 11:36:04,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191130367] [2024-09-24 11:36:04,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:36:04,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-24 11:36:04,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:04,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-24 11:36:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=168, Unknown=20, NotChecked=0, Total=272 [2024-09-24 11:36:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:04,792 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:04,792 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.625) internal successors, (122), 16 states have internal predecessors, (122), 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) [2024-09-24 11:36:04,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:04,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:04,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:04,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:04,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:04,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:04,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:05,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-24 11:36:05,559 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,25 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:05,559 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:05,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:05,559 INFO L85 PathProgramCache]: Analyzing trace with hash -420954812, now seen corresponding path program 1 times [2024-09-24 11:36:05,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:05,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019157123] [2024-09-24 11:36:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:05,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:05,928 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-24 11:36:05,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019157123] [2024-09-24 11:36:05,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019157123] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:05,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:05,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:36:05,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903248918] [2024-09-24 11:36:05,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:05,929 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:36:05,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:05,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:36:05,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:36:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:05,929 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:05,929 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-09-24 11:36:05,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:05,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:05,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:05,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:05,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:05,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:05,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:05,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:08,249 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-09-24 11:36:08,249 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:08,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:08,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1225777028, now seen corresponding path program 2 times [2024-09-24 11:36:08,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:08,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015383314] [2024-09-24 11:36:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:08,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:36:08,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:08,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015383314] [2024-09-24 11:36:08,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015383314] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:36:08,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975283484] [2024-09-24 11:36:08,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 11:36:08,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:08,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:36:08,924 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:36:08,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-24 11:36:09,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 11:36:09,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 11:36:09,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-24 11:36:09,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:36:09,128 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:36:09,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:36:10,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:36:10,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-24 11:36:11,115 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:36:11,297 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2030 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_2030) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:36:11,329 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2030 (Array Int Int))) (< 0 (select (select (store (store |c_#memory_int| c_t_funThread2of4ForFork0_~p~0.base (let ((.cse0 (select |c_#memory_int| c_t_funThread2of4ForFork0_~p~0.base))) (store .cse0 c_t_funThread2of4ForFork0_~p~0.offset (+ (select .cse0 c_t_funThread2of4ForFork0_~p~0.offset) 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_2030) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:36:11,549 INFO L349 Elim1Store]: treesize reduction 17, result has 70.2 percent of original size [2024-09-24 11:36:11,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 53 [2024-09-24 11:36:11,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:11,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2024-09-24 11:36:11,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:36:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 4 not checked. [2024-09-24 11:36:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975283484] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:36:12,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:36:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-09-24 11:36:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300229190] [2024-09-24 11:36:12,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:36:12,456 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-24 11:36:12,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-24 11:36:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=133, Unknown=2, NotChecked=50, Total=240 [2024-09-24 11:36:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:12,457 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:12,457 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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) [2024-09-24 11:36:12,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:12,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:12,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:12,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:12,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:12,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:12,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:12,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:12,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:20,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-24 11:36:20,419 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:36:20,420 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:36:20,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-24 11:36:20,620 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-24 11:36:20,621 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:36:20,621 INFO L312 ceAbstractionStarter]: Result for error location t_funThread2of4ForFork0 was SAFE,SAFE (2/5) [2024-09-24 11:36:20,624 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:36:20,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:36:20,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:36:20,625 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:36:20,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2024-09-24 11:36:20,627 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:36:20,627 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread3of4ForFork0 ======== [2024-09-24 11:36:20,628 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:36:20,628 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:36:20,802 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:20,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1858194247, now seen corresponding path program 1 times [2024-09-24 11:36:20,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:20,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082341232] [2024-09-24 11:36:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:20,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-24 11:36:20,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:20,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082341232] [2024-09-24 11:36:20,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082341232] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:20,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:20,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:36:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988502744] [2024-09-24 11:36:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:20,821 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:36:20,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:36:20,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:36:20,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:20,822 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:20,822 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2024-09-24 11:36:20,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:20,969 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-09-24 11:36:20,970 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:20,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:20,970 INFO L85 PathProgramCache]: Analyzing trace with hash 729719830, now seen corresponding path program 1 times [2024-09-24 11:36:20,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:20,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290046739] [2024-09-24 11:36:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:20,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:36:21,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:21,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290046739] [2024-09-24 11:36:21,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290046739] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:21,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:21,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:36:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150141193] [2024-09-24 11:36:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:21,030 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:36:21,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:36:21,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:36:21,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,030 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:21,030 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 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) [2024-09-24 11:36:21,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,030 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:21,349 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-09-24 11:36:21,349 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:21,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:21,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1840471898, now seen corresponding path program 1 times [2024-09-24 11:36:21,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:21,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020091046] [2024-09-24 11:36:21,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:21,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:21,417 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-24 11:36:21,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:21,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020091046] [2024-09-24 11:36:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020091046] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:21,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:21,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:36:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690232442] [2024-09-24 11:36:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:21,418 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:36:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:36:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:36:21,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,419 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:21,419 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-09-24 11:36:21,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:21,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:21,845 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-09-24 11:36:21,845 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:21,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:21,845 INFO L85 PathProgramCache]: Analyzing trace with hash 414788351, now seen corresponding path program 1 times [2024-09-24 11:36:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:21,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083524768] [2024-09-24 11:36:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:21,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-24 11:36:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:21,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083524768] [2024-09-24 11:36:21,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083524768] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:21,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:21,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:36:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13822339] [2024-09-24 11:36:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:21,930 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:36:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:21,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:36:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:36:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,931 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:21,931 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) 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) [2024-09-24 11:36:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:21,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:22,623 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-09-24 11:36:22,623 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:22,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:22,623 INFO L85 PathProgramCache]: Analyzing trace with hash -484517546, now seen corresponding path program 1 times [2024-09-24 11:36:22,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:22,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510526388] [2024-09-24 11:36:22,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:22,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-24 11:36:22,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510526388] [2024-09-24 11:36:22,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510526388] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:22,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:22,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:36:22,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400807827] [2024-09-24 11:36:22,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:22,973 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:36:22,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:36:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:36:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:22,974 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:22,974 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:36:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:22,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:23,643 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-09-24 11:36:23,643 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:23,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1488881442, now seen corresponding path program 1 times [2024-09-24 11:36:23,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:23,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056549998] [2024-09-24 11:36:23,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-24 11:36:23,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:23,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056549998] [2024-09-24 11:36:23,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056549998] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:23,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:23,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:36:23,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847289678] [2024-09-24 11:36:23,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:23,894 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:36:23,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:23,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:36:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:36:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:23,895 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:23,895 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-09-24 11:36:23,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:23,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:23,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:23,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:23,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:23,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:24,915 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-09-24 11:36:24,916 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:24,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -626777666, now seen corresponding path program 1 times [2024-09-24 11:36:24,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:24,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947371038] [2024-09-24 11:36:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:24,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-24 11:36:25,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:25,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947371038] [2024-09-24 11:36:25,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947371038] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:25,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:36:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-24 11:36:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428868474] [2024-09-24 11:36:25,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:25,574 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 11:36:25,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:25,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 11:36:25,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-24 11:36:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:25,575 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:25,575 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:25,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:27,383 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-09-24 11:36:27,383 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:27,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:27,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1701807534, now seen corresponding path program 1 times [2024-09-24 11:36:27,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:27,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115544841] [2024-09-24 11:36:27,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:27,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:36:28,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:28,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115544841] [2024-09-24 11:36:28,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115544841] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:36:28,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475012141] [2024-09-24 11:36:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:28,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:28,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:36:28,090 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:36:28,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-24 11:36:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:28,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:36:28,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:36:28,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:36:29,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:36:29,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:29,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:36:29,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-24 11:36:29,351 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:36:29,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475012141] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:36:29,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:36:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-09-24 11:36:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135629735] [2024-09-24 11:36:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:36:29,352 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:36:29,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:36:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-24 11:36:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:29,352 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:29,353 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:29,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:31,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-24 11:36:32,022 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,28 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:32,022 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:32,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1252214830, now seen corresponding path program 1 times [2024-09-24 11:36:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:32,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298002389] [2024-09-24 11:36:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:32,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:36:32,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:32,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298002389] [2024-09-24 11:36:32,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298002389] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:36:32,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275167948] [2024-09-24 11:36:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:32,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:32,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:36:32,353 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:36:32,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-24 11:36:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:32,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-24 11:36:32,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:36:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:36:33,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:36:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:36:33,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275167948] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:36:33,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:36:33,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-24 11:36:33,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182823140] [2024-09-24 11:36:33,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:36:33,561 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-24 11:36:33,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:33,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-24 11:36:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-24 11:36:33,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:33,562 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:33,562 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 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) [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:33,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:34,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-24 11:36:34,907 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:34,907 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:34,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash -580185953, now seen corresponding path program 1 times [2024-09-24 11:36:34,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:34,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943885684] [2024-09-24 11:36:34,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:34,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:36:35,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:35,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943885684] [2024-09-24 11:36:35,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943885684] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:36:35,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803284932] [2024-09-24 11:36:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:35,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:36:35,513 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:36:35,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-24 11:36:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:35,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-24 11:36:35,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:36:35,741 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:36:35,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:36:36,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-24 11:36:37,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:37,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:36:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-24 11:36:37,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:36:37,767 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2639 (Array Int Int))) (< 0 (+ (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_2639))) (store .cse0 c_t_funThread2of4ForFork0_~p~0.base (let ((.cse1 (select .cse0 c_t_funThread2of4ForFork0_~p~0.base))) (store .cse1 c_t_funThread2of4ForFork0_~p~0.offset (+ (- 1) (select .cse1 c_t_funThread2of4ForFork0_~p~0.offset)))))) |c_~#global~0.base|) |c_~#global~0.offset|) 1))) is different from false [2024-09-24 11:36:37,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 275 treesize of output 263 [2024-09-24 11:36:38,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:38,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 120 [2024-09-24 11:36:38,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:38,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 114 [2024-09-24 11:36:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 4 not checked. [2024-09-24 11:36:38,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803284932] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:36:38,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:36:38,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2024-09-24 11:36:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982797315] [2024-09-24 11:36:38,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:36:38,612 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-24 11:36:38,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:38,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-24 11:36:38,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=170, Unknown=1, NotChecked=28, Total=272 [2024-09-24 11:36:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:38,613 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:38,614 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.4375) internal successors, (167), 16 states have internal predecessors, (167), 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) [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:38,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:39,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-24 11:36:40,119 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,30 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:40,120 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:36:40,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:36:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash 150125658, now seen corresponding path program 1 times [2024-09-24 11:36:40,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:36:40,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186955620] [2024-09-24 11:36:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:40,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:36:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:36:40,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:36:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186955620] [2024-09-24 11:36:40,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186955620] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:36:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607056384] [2024-09-24 11:36:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:36:40,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:36:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:36:40,643 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:36:40,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-24 11:36:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:36:40,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-24 11:36:40,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:36:40,872 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:36:40,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:36:42,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-09-24 11:36:42,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:36:43,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:36:43,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:36:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:36:43,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:36:45,211 INFO L349 Elim1Store]: treesize reduction 74, result has 47.5 percent of original size [2024-09-24 11:36:45,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 109 treesize of output 127 [2024-09-24 11:36:45,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:36:45,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 102 [2024-09-24 11:36:46,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:36:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:36:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607056384] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:36:51,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:36:51,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2024-09-24 11:36:51,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922825103] [2024-09-24 11:36:51,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:36:51,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-24 11:36:51,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:36:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-24 11:36:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=277, Unknown=9, NotChecked=0, Total=380 [2024-09-24 11:36:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:51,642 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:36:51,642 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.368421052631579) internal successors, (197), 19 states have internal predecessors, (197), 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) [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:36:51,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:37:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-24 11:37:02,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-24 11:37:02,139 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:37:02,139 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:37:02,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-24 11:37:02,339 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-24 11:37:02,340 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:37:02,340 INFO L312 ceAbstractionStarter]: Result for error location t_funThread3of4ForFork0 was SAFE,SAFE (3/5) [2024-09-24 11:37:02,342 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:37:02,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:37:02,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:37:02,343 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:37:02,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (32)] Waiting until timeout for monitored process [2024-09-24 11:37:02,347 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:37:02,347 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of4ForFork0 ======== [2024-09-24 11:37:02,348 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:37:02,348 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:37:47,241 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:37:47,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:37:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1976566684, now seen corresponding path program 1 times [2024-09-24 11:37:47,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:37:47,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532646312] [2024-09-24 11:37:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:47,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:37:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:47,291 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-24 11:37:47,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:37:47,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532646312] [2024-09-24 11:37:47,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532646312] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:37:47,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:37:47,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:37:47,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816792356] [2024-09-24 11:37:47,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:37:47,292 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:37:47,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:37:47,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:37:47,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:37:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:47,292 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:37:47,293 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) 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) [2024-09-24 11:37:47,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:47,374 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-09-24 11:37:47,374 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:37:47,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:37:47,374 INFO L85 PathProgramCache]: Analyzing trace with hash -99737734, now seen corresponding path program 1 times [2024-09-24 11:37:47,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:37:47,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050533211] [2024-09-24 11:37:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:47,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:37:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:47,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:47,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:37:47,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050533211] [2024-09-24 11:37:47,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050533211] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:37:47,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013709197] [2024-09-24 11:37:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:47,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:37:47,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:37:47,477 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:37:47,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-24 11:37:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:47,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-24 11:37:47,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:37:47,685 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:37:47,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:37:47,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:37:47,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:37:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:48,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:37:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:48,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013709197] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:37:48,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:37:48,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2024-09-24 11:37:48,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838894783] [2024-09-24 11:37:48,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:37:48,230 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-24 11:37:48,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:37:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-24 11:37:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=33, Unknown=2, NotChecked=0, Total=56 [2024-09-24 11:37:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:48,230 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:37:48,230 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-09-24 11:37:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:48,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:48,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:48,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:48,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-24 11:37:48,677 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-24 11:37:48,678 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:37:48,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:37:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash -585344098, now seen corresponding path program 1 times [2024-09-24 11:37:48,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:37:48,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5912264] [2024-09-24 11:37:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:48,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:37:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:49,019 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:49,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:37:49,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5912264] [2024-09-24 11:37:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5912264] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:37:49,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123857496] [2024-09-24 11:37:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:49,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:37:49,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:37:49,021 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:37:49,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-24 11:37:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:49,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:37:49,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:37:49,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:37:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:37:49,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:37:49,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:37:49,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:37:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:49,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:37:49,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123857496] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:37:49,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:37:49,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-09-24 11:37:49,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466724680] [2024-09-24 11:37:49,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:37:49,728 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:37:49,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:37:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:37:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-24 11:37:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:49,729 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:37:49,729 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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) [2024-09-24 11:37:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:49,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-24 11:37:50,061 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,34 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:37:50,061 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:37:50,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:37:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash 338032031, now seen corresponding path program 1 times [2024-09-24 11:37:50,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:37:50,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362021448] [2024-09-24 11:37:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:50,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:37:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:50,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:37:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362021448] [2024-09-24 11:37:50,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362021448] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:37:50,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186742195] [2024-09-24 11:37:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:37:50,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:37:50,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:37:50,366 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:37:50,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-24 11:37:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:37:50,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-24 11:37:50,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:37:50,580 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:37:50,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:37:51,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:37:51,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:37:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:37:51,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:37:51,527 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2885 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_2885) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:37:51,836 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:37:51,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-09-24 11:37:51,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:37:51,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2024-09-24 11:37:52,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:37:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2024-09-24 11:37:54,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186742195] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:37:54,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:37:54,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 13 [2024-09-24 11:37:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065631161] [2024-09-24 11:37:54,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:37:54,386 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:37:54,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:37:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:37:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=131, Unknown=3, NotChecked=24, Total=210 [2024-09-24 11:37:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:37:54,387 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:37:54,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 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) [2024-09-24 11:37:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:37:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:37:54,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:02,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:38:02,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-24 11:38:02,976 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-24 11:38:02,976 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:02,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 712746065, now seen corresponding path program 1 times [2024-09-24 11:38:02,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:02,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431272763] [2024-09-24 11:38:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:02,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:38:03,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:03,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431272763] [2024-09-24 11:38:03,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431272763] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:03,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911616380] [2024-09-24 11:38:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:03,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:03,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:03,172 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:03,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-24 11:38:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:03,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-24 11:38:03,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:03,582 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:38:03,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:38:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:38:04,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911616380] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:38:04,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:38:04,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-09-24 11:38:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063701619] [2024-09-24 11:38:04,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:38:04,014 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-24 11:38:04,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:04,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-24 11:38:04,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-09-24 11:38:04,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:04,014 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:04,015 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 12 states have internal predecessors, (96), 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) [2024-09-24 11:38:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:38:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-24 11:38:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:38:07,404 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:38:07,405 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:38:07,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-24 11:38:07,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,36 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:07,606 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-24 11:38:07,606 INFO L312 ceAbstractionStarter]: Result for error location t_funThread1of4ForFork0 was SAFE,SAFE (4/5) [2024-09-24 11:38:07,608 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:38:07,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:38:07,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:07,610 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:38:07,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (37)] Waiting until timeout for monitored process [2024-09-24 11:38:07,614 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:38:07,614 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 11:38:07,614 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:38:07,615 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-24 11:38:07,696 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:07,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash 208082789, now seen corresponding path program 1 times [2024-09-24 11:38:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:07,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817262207] [2024-09-24 11:38:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:07,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:07,713 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-24 11:38:07,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:07,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817262207] [2024-09-24 11:38:07,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817262207] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:07,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:07,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:38:07,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125381717] [2024-09-24 11:38:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:07,714 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:38:07,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:38:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:38:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:07,714 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:07,714 INFO L475 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) [2024-09-24 11:38:07,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:07,883 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-09-24 11:38:07,883 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:07,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:07,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2040271323, now seen corresponding path program 1 times [2024-09-24 11:38:07,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:07,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802033575] [2024-09-24 11:38:07,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:07,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-24 11:38:07,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:07,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802033575] [2024-09-24 11:38:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802033575] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:07,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:07,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:38:07,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635574746] [2024-09-24 11:38:07,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:07,956 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:38:07,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:07,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:38:07,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:38:07,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:07,957 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:07,957 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:38:07,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:07,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,082 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-09-24 11:38:08,083 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:08,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:08,083 INFO L85 PathProgramCache]: Analyzing trace with hash -901864561, now seen corresponding path program 1 times [2024-09-24 11:38:08,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:08,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273582801] [2024-09-24 11:38:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:08,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:08,210 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-24 11:38:08,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:08,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273582801] [2024-09-24 11:38:08,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273582801] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:08,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:08,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:38:08,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314820126] [2024-09-24 11:38:08,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:08,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:38:08,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:08,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:38:08,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:38:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,212 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:08,212 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 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) [2024-09-24 11:38:08,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,491 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-09-24 11:38:08,491 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:08,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1421005773, now seen corresponding path program 1 times [2024-09-24 11:38:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844099417] [2024-09-24 11:38:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:08,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-24 11:38:08,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:08,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844099417] [2024-09-24 11:38:08,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844099417] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:08,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:08,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:38:08,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418915251] [2024-09-24 11:38:08,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:08,563 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:38:08,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:08,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:38:08,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:38:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,563 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:08,563 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 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) [2024-09-24 11:38:08,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:08,727 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-09-24 11:38:08,727 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:08,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:08,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1830912238, now seen corresponding path program 1 times [2024-09-24 11:38:08,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:08,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799188156] [2024-09-24 11:38:08,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:08,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:09,040 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:38:09,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:09,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799188156] [2024-09-24 11:38:09,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799188156] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:09,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648028959] [2024-09-24 11:38:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:09,042 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:09,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-24 11:38:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:09,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:38:09,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:09,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:38:09,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:38:09,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:09,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:38:09,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:38:09,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:38:09,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648028959] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:09,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:38:09,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-24 11:38:09,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946755894] [2024-09-24 11:38:09,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:09,731 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:38:09,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:38:09,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-24 11:38:09,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:09,731 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:09,731 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-09-24 11:38:09,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:09,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:09,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:09,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:09,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:09,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-24 11:38:10,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,38 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:10,086 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:10,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash -903437865, now seen corresponding path program 1 times [2024-09-24 11:38:10,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391361876] [2024-09-24 11:38:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:38:10,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:10,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391361876] [2024-09-24 11:38:10,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391361876] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:10,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564764072] [2024-09-24 11:38:10,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:10,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:10,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:10,379 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:10,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-24 11:38:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:10,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-24 11:38:10,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:10,597 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:38:10,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:38:11,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:38:11,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:38:11,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:38:11,867 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:38:11,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-09-24 11:38:11,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:38:11,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2024-09-24 11:38:12,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:38:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-24 11:38:14,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564764072] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:38:14,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:38:14,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-09-24 11:38:14,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482840352] [2024-09-24 11:38:14,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:38:14,517 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:38:14,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:14,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:38:14,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=148, Unknown=7, NotChecked=0, Total=210 [2024-09-24 11:38:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:14,517 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:14,518 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 14 states have internal predecessors, (80), 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) [2024-09-24 11:38:14,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:14,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:14,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:14,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:14,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:14,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:15,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:15,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-24 11:38:15,502 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-24 11:38:15,502 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:38:15,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2069598887, now seen corresponding path program 1 times [2024-09-24 11:38:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271483330] [2024-09-24 11:38:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:15,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:38:15,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-24 11:38:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:38:15,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-24 11:38:15,548 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-24 11:38:15,548 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-09-24 11:38:15,548 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-24 11:38:15,548 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-24 11:38:15,548 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-09-24 11:38:15,549 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:38:15,549 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (5/5) [2024-09-24 11:38:15,550 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-24 11:38:15,550 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-09-24 11:38:15,573 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-09-24 11:38:15,575 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:38:15,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:38:15,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:15,576 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:38:15,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (40)] Waiting until timeout for monitored process [2024-09-24 11:38:15,580 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:38:15,580 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread3of5ForFork0 ======== [2024-09-24 11:38:15,580 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:38:15,580 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:38:16,874 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:16,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1603989343, now seen corresponding path program 1 times [2024-09-24 11:38:16,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:16,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132308855] [2024-09-24 11:38:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-09-24 11:38:17,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:17,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132308855] [2024-09-24 11:38:17,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132308855] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:17,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:17,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:38:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446601071] [2024-09-24 11:38:17,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:17,024 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:38:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:38:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:38:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,025 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:17,025 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2024-09-24 11:38:17,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,188 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-09-24 11:38:17,188 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:17,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1338229836, now seen corresponding path program 1 times [2024-09-24 11:38:17,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:17,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340990706] [2024-09-24 11:38:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:38:17,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:17,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340990706] [2024-09-24 11:38:17,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340990706] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:17,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:17,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:38:17,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465020316] [2024-09-24 11:38:17,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:17,233 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:38:17,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:17,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:38:17,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:38:17,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,234 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:17,234 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 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) [2024-09-24 11:38:17,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:17,568 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-09-24 11:38:17,568 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:17,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:17,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1373052446, now seen corresponding path program 1 times [2024-09-24 11:38:17,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:17,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043198279] [2024-09-24 11:38:17,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:17,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-24 11:38:17,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:17,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043198279] [2024-09-24 11:38:17,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043198279] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:17,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:17,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:38:17,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107332301] [2024-09-24 11:38:17,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:17,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:38:17,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:38:17,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:38:17,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,638 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:17,638 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-09-24 11:38:17,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:17,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:17,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,104 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-09-24 11:38:18,104 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:18,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:18,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1790847791, now seen corresponding path program 1 times [2024-09-24 11:38:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:18,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448368914] [2024-09-24 11:38:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:18,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-24 11:38:18,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:18,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448368914] [2024-09-24 11:38:18,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448368914] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:18,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:18,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:38:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352594465] [2024-09-24 11:38:18,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:18,170 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:38:18,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:18,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:38:18,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:38:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:18,170 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:18,170 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-09-24 11:38:18,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:18,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:18,884 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-09-24 11:38:18,884 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:18,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:18,885 INFO L85 PathProgramCache]: Analyzing trace with hash -837367912, now seen corresponding path program 1 times [2024-09-24 11:38:18,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:18,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323074756] [2024-09-24 11:38:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:18,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-24 11:38:19,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323074756] [2024-09-24 11:38:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323074756] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:19,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:19,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:38:19,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460803507] [2024-09-24 11:38:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:19,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:38:19,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:38:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:38:19,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:19,124 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:19,124 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) 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) [2024-09-24 11:38:19,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:19,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:19,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:19,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:19,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:19,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:19,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:19,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:19,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:19,847 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-09-24 11:38:19,847 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:19,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:19,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1318583055, now seen corresponding path program 1 times [2024-09-24 11:38:19,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:19,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333924433] [2024-09-24 11:38:19,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:19,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:38:20,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:20,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333924433] [2024-09-24 11:38:20,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333924433] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:20,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534135031] [2024-09-24 11:38:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:20,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:20,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:20,313 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:20,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-24 11:38:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:20,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:38:20,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:21,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:38:21,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:38:21,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:21,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:38:21,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:21,464 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-24 11:38:21,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:38:21,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534135031] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:21,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:38:21,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-09-24 11:38:21,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761131329] [2024-09-24 11:38:21,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:21,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:38:21,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:21,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:38:21,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-24 11:38:21,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:21,466 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:21,466 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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) [2024-09-24 11:38:21,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:21,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:21,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:21,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:21,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:21,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:21,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-24 11:38:22,101 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,41 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:22,101 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:22,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:22,101 INFO L85 PathProgramCache]: Analyzing trace with hash -296341301, now seen corresponding path program 1 times [2024-09-24 11:38:22,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:22,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574630443] [2024-09-24 11:38:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:22,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-24 11:38:22,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574630443] [2024-09-24 11:38:22,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574630443] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:38:22,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:38:22,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-24 11:38:22,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760010003] [2024-09-24 11:38:22,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:38:22,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:38:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:38:22,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-24 11:38:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:22,410 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:22,410 INFO L475 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) [2024-09-24 11:38:22,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:22,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:22,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:22,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:22,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:22,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:22,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:38:25,035 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-09-24 11:38:25,036 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:25,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash -875299028, now seen corresponding path program 1 times [2024-09-24 11:38:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:25,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751110427] [2024-09-24 11:38:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:38:25,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:25,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751110427] [2024-09-24 11:38:25,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751110427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:25,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888203799] [2024-09-24 11:38:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:25,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:25,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:25,449 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:25,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-24 11:38:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:25,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-24 11:38:25,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:38:26,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:38:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-24 11:38:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888203799] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:38:26,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:38:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-09-24 11:38:26,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053612690] [2024-09-24 11:38:26,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:38:26,753 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:38:26,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:38:26,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2024-09-24 11:38:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:26,754 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:26,754 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.066666666666666) internal successors, (166), 14 states have internal predecessors, (166), 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) [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:38:26,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:38:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:27,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-24 11:38:27,718 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,42 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:27,718 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:27,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash -861766352, now seen corresponding path program 1 times [2024-09-24 11:38:27,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:27,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277862336] [2024-09-24 11:38:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-24 11:38:28,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:28,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277862336] [2024-09-24 11:38:28,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277862336] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:28,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665242475] [2024-09-24 11:38:28,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:28,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:28,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:28,388 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:28,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-24 11:38:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:28,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-24 11:38:28,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:28,662 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:38:28,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:38:29,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:38:30,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:30,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:38:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-24 11:38:30,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:38:31,057 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3810 Int) (v_ArrVal_3811 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| c_t_funThread2of5ForFork0_~p~0.base))) (or (< v_ArrVal_3810 (+ (select .cse0 c_t_funThread2of5ForFork0_~p~0.offset) 1)) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_3811) c_t_funThread2of5ForFork0_~p~0.base (let ((.cse1 (select (store (store |c_#memory_int| c_t_funThread2of5ForFork0_~p~0.base (store .cse0 c_t_funThread2of5ForFork0_~p~0.offset v_ArrVal_3810)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_3811) c_t_funThread2of5ForFork0_~p~0.base))) (store .cse1 c_t_funThread2of5ForFork0_~p~0.offset (+ (- 1) (select .cse1 c_t_funThread2of5ForFork0_~p~0.offset))))) |c_~#global~0.base|) |c_~#global~0.offset|) 1))))) is different from false [2024-09-24 11:38:31,245 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:38:31,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 142 treesize of output 135 [2024-09-24 11:38:31,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:38:31,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 132 [2024-09-24 11:38:31,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:38:31,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 111 [2024-09-24 11:38:31,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-09-24 11:38:31,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:38:31,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:38:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 5 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-24 11:38:31,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665242475] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:38:31,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:38:31,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 5] total 16 [2024-09-24 11:38:31,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714954594] [2024-09-24 11:38:31,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:38:31,889 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-24 11:38:31,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:31,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-24 11:38:31,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=194, Unknown=5, NotChecked=30, Total=306 [2024-09-24 11:38:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:31,890 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:31,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.176470588235293) internal successors, (173), 17 states have internal predecessors, (173), 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) [2024-09-24 11:38:31,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:31,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:31,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:31,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:31,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:31,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:31,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:38:31,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:31,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:33,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-24 11:38:34,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,43 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:34,056 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:38:34,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:38:34,056 INFO L85 PathProgramCache]: Analyzing trace with hash 984340965, now seen corresponding path program 2 times [2024-09-24 11:38:34,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:38:34,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105608939] [2024-09-24 11:38:34,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:38:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:38:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:38:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:38:34,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:38:34,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105608939] [2024-09-24 11:38:34,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105608939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:38:34,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612053476] [2024-09-24 11:38:34,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-24 11:38:34,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:34,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:34,648 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:38:34,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-24 11:38:34,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-24 11:38:34,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-24 11:38:34,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-24 11:38:34,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:38:34,933 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:38:34,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:38:36,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-24 11:38:37,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-24 11:38:37,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:38:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-24 11:38:37,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:38:37,387 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3927 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_3927) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:38:37,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:38:37,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2251 treesize of output 2161 [2024-09-24 11:38:37,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:38:37,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 285 treesize of output 279 [2024-09-24 11:38:37,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 246 [2024-09-24 11:38:38,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:38:38,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 72 [2024-09-24 11:38:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 5 not checked. [2024-09-24 11:38:39,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612053476] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:38:39,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:38:39,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 6] total 16 [2024-09-24 11:38:39,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496880072] [2024-09-24 11:38:39,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:38:39,517 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-24 11:38:39,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:38:39,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-24 11:38:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=199, Unknown=3, NotChecked=30, Total=306 [2024-09-24 11:38:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:39,517 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:38:39,517 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 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) [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:39,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:38:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-24 11:38:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-24 11:38:56,063 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:38:56,063 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:38:56,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-24 11:38:56,264 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,44 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:38:56,265 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:38:56,265 INFO L312 ceAbstractionStarter]: Result for error location t_funThread3of5ForFork0 was SAFE,SAFE (1/6) [2024-09-24 11:38:56,267 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:38:56,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:38:56,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:38:56,268 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:38:56,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (45)] Waiting until timeout for monitored process [2024-09-24 11:38:56,273 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:38:56,273 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread2of5ForFork0 ======== [2024-09-24 11:38:56,273 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:38:56,273 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-24 11:39:45,241 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:45,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:45,242 INFO L85 PathProgramCache]: Analyzing trace with hash 543990313, now seen corresponding path program 1 times [2024-09-24 11:39:45,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:45,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148805227] [2024-09-24 11:39:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:45,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-09-24 11:39:45,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:45,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148805227] [2024-09-24 11:39:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148805227] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:39:45,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:39:45,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:39:45,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679434648] [2024-09-24 11:39:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:39:45,256 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:39:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:45,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:39:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:39:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,256 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:45,256 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2024-09-24 11:39:45,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,362 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-09-24 11:39:45,362 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:45,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:45,363 INFO L85 PathProgramCache]: Analyzing trace with hash -455604350, now seen corresponding path program 1 times [2024-09-24 11:39:45,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:45,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040393303] [2024-09-24 11:39:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:45,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-24 11:39:45,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:45,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040393303] [2024-09-24 11:39:45,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040393303] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:39:45,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:39:45,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:39:45,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874572400] [2024-09-24 11:39:45,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:39:45,404 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:39:45,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:39:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:39:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,405 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:45,405 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:39:45,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:45,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-09-24 11:39:45,743 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:45,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1020625210, now seen corresponding path program 1 times [2024-09-24 11:39:45,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:45,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082643457] [2024-09-24 11:39:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-24 11:39:45,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:45,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082643457] [2024-09-24 11:39:45,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082643457] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:39:45,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:39:45,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:39:45,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096612225] [2024-09-24 11:39:45,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:39:45,789 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:39:45,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:45,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:39:45,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:39:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,790 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:45,790 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-09-24 11:39:45,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:45,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:45,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:46,205 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-09-24 11:39:46,205 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:46,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:46,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1880060373, now seen corresponding path program 1 times [2024-09-24 11:39:46,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:46,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966191032] [2024-09-24 11:39:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:46,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:39:46,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:46,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966191032] [2024-09-24 11:39:46,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966191032] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:39:46,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262343778] [2024-09-24 11:39:46,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:46,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:39:46,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:39:46,448 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:39:46,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-24 11:39:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:46,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-24 11:39:46,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:39:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:39:46,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:39:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-24 11:39:47,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262343778] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:39:47,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:39:47,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-09-24 11:39:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565247039] [2024-09-24 11:39:47,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:39:47,393 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:39:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:47,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:39:47,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2024-09-24 11:39:47,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:47,394 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:47,394 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 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) [2024-09-24 11:39:47,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:47,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:47,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:47,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:47,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:47,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:47,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:47,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-24 11:39:48,083 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2024-09-24 11:39:48,083 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:48,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash -269269386, now seen corresponding path program 1 times [2024-09-24 11:39:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:48,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657346871] [2024-09-24 11:39:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-24 11:39:48,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:48,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657346871] [2024-09-24 11:39:48,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657346871] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:39:48,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:39:48,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:39:48,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439088623] [2024-09-24 11:39:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:39:48,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:39:48,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:39:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:39:48,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:48,135 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:48,135 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2024-09-24 11:39:48,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:48,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:48,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:48,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:48,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:48,514 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-09-24 11:39:48,514 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:48,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:48,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1222140373, now seen corresponding path program 1 times [2024-09-24 11:39:48,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:48,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53820228] [2024-09-24 11:39:48,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:48,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:39:49,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53820228] [2024-09-24 11:39:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53820228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:39:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287883901] [2024-09-24 11:39:49,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:49,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:39:49,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:39:49,285 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:39:49,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-24 11:39:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:49,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:39:49,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:39:49,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:39:49,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:39:49,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:50,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:39:50,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-24 11:39:50,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:39:50,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287883901] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:39:50,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:39:50,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-09-24 11:39:50,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117309509] [2024-09-24 11:39:50,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:39:50,136 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:39:50,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:50,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:39:50,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-24 11:39:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:50,137 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:50,137 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-09-24 11:39:50,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:50,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:50,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:50,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:50,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:50,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:39:50,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-24 11:39:50,606 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,47 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:39:50,606 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:50,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:50,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1295910586, now seen corresponding path program 1 times [2024-09-24 11:39:50,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:50,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753401679] [2024-09-24 11:39:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-24 11:39:51,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:51,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753401679] [2024-09-24 11:39:51,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753401679] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:39:51,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604036292] [2024-09-24 11:39:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:51,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:39:51,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:39:51,006 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:39:51,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-24 11:39:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:51,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-24 11:39:51,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:39:51,287 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:39:51,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:39:51,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:51,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:51,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2024-09-24 11:39:52,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:52,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:39:52,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:52,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:52,739 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-24 11:39:52,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:39:53,187 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4265 (Array Int Int)) (v_ArrVal_4261 (Array Int Int)) (v_ArrVal_4263 Int)) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4261) c_t_funThread1of5ForFork0_~p~0.base))) (or (< 0 (+ (select (select (store (store |c_#memory_int| c_t_funThread1of5ForFork0_~p~0.base (store .cse0 c_t_funThread1of5ForFork0_~p~0.offset v_ArrVal_4263)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4265) |c_~#global~0.base|) |c_~#global~0.offset|) 1)) (< (+ v_ArrVal_4263 1) (select .cse0 c_t_funThread1of5ForFork0_~p~0.offset))))) is different from false [2024-09-24 11:39:53,293 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4260 Int) (v_ArrVal_4265 (Array Int Int)) (v_ArrVal_4261 (Array Int Int)) (v_ArrVal_4263 Int)) (let ((.cse0 (select |c_#memory_int| c_t_funThread1of5ForFork0_~p~0.base))) (let ((.cse1 (select (store (store |c_#memory_int| c_t_funThread1of5ForFork0_~p~0.base (store .cse0 c_t_funThread1of5ForFork0_~p~0.offset v_ArrVal_4260)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4261) c_t_funThread1of5ForFork0_~p~0.base))) (or (< v_ArrVal_4260 (+ (select .cse0 c_t_funThread1of5ForFork0_~p~0.offset) 1)) (< (+ v_ArrVal_4263 1) (select .cse1 c_t_funThread1of5ForFork0_~p~0.offset)) (< 0 (+ (select (select (store (store |c_#memory_int| c_t_funThread1of5ForFork0_~p~0.base (store .cse1 c_t_funThread1of5ForFork0_~p~0.offset v_ArrVal_4263)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4265) |c_~#global~0.base|) |c_~#global~0.offset|) 1)))))) is different from false [2024-09-24 11:39:53,531 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4260 Int) (v_ArrVal_4265 (Array Int Int)) (v_ArrVal_4258 (Array Int Int)) (v_ArrVal_4261 (Array Int Int)) (v_ArrVal_4263 Int)) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4258) c_t_funThread1of5ForFork0_~p~0.base))) (let ((.cse1 (select (store (store |c_#memory_int| c_t_funThread1of5ForFork0_~p~0.base (store .cse0 c_t_funThread1of5ForFork0_~p~0.offset v_ArrVal_4260)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4261) c_t_funThread1of5ForFork0_~p~0.base))) (or (< v_ArrVal_4260 (+ (select .cse0 c_t_funThread1of5ForFork0_~p~0.offset) 1)) (< 0 (+ (select (select (store (store |c_#memory_int| c_t_funThread1of5ForFork0_~p~0.base (store .cse1 c_t_funThread1of5ForFork0_~p~0.offset v_ArrVal_4263)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4265) |c_~#global~0.base|) |c_~#global~0.offset|) 1)) (< (+ v_ArrVal_4263 1) (select .cse1 c_t_funThread1of5ForFork0_~p~0.offset)))))) is different from false [2024-09-24 11:39:53,731 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4260 Int) (v_ArrVal_4265 (Array Int Int)) (v_ArrVal_4258 (Array Int Int)) (v_ArrVal_4261 (Array Int Int)) (v_ArrVal_4263 Int)) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4258) |c_~#global~0.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#global~0.base| (store .cse1 |c_~#global~0.offset| v_ArrVal_4260)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4261) |c_~#global~0.base|))) (or (< (+ v_ArrVal_4263 1) (select .cse0 |c_~#global~0.offset|)) (< 0 (+ (select (select (store (store |c_#memory_int| |c_~#global~0.base| (store .cse0 |c_~#global~0.offset| v_ArrVal_4263)) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4265) |c_~#global~0.base|) |c_~#global~0.offset|) 1)) (< v_ArrVal_4260 (+ (select .cse1 |c_~#global~0.offset|) 1)))))) is different from false [2024-09-24 11:39:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 23 not checked. [2024-09-24 11:39:53,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604036292] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:39:53,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:39:53,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 7] total 15 [2024-09-24 11:39:53,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868142302] [2024-09-24 11:39:53,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:39:53,799 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-24 11:39:53,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:39:53,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-24 11:39:53,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=101, Unknown=10, NotChecked=100, Total=272 [2024-09-24 11:39:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:53,799 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:39:53,799 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.125) internal successors, (130), 16 states have internal predecessors, (130), 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) [2024-09-24 11:39:53,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:53,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:53,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:53,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:53,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:53,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:39:53,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:39:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:39:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:39:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:39:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:39:54,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-24 11:39:54,586 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,48 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:39:54,587 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-24 11:39:54,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:39:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1594115665, now seen corresponding path program 1 times [2024-09-24 11:39:54,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:39:54,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534052327] [2024-09-24 11:39:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:54,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:39:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-24 11:39:55,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:39:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534052327] [2024-09-24 11:39:55,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534052327] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:39:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785217499] [2024-09-24 11:39:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:39:55,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:39:55,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:39:55,010 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:39:55,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-24 11:39:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:39:55,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-24 11:39:55,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:39:55,297 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:39:55,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:39:56,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:39:56,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:39:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-24 11:39:56,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:39:56,833 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4348 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_4348) |c_~#global~0.base|) |c_~#global~0.offset|))) is different from false [2024-09-24 11:39:57,125 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:39:57,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-09-24 11:39:57,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:39:57,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2024-09-24 11:39:57,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:40:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 5 not checked. [2024-09-24 11:40:00,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785217499] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:40:00,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:40:00,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-09-24 11:40:00,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181677315] [2024-09-24 11:40:00,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:40:00,062 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:40:00,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:40:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=132, Unknown=2, NotChecked=24, Total=210 [2024-09-24 11:40:00,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:00,063 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:00,063 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 14 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-24 11:40:00,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:40:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-24 11:40:16,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-24 11:40:16,077 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-24 11:40:16,077 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-09-24 11:40:16,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-09-24 11:40:16,277 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-09-24 11:40:16,278 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:40:16,278 INFO L312 ceAbstractionStarter]: Result for error location t_funThread2of5ForFork0 was SAFE,SAFE (2/6) [2024-09-24 11:40:16,279 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:40:16,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:40:16,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:40:16,281 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:40:16,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (50)] Waiting until timeout for monitored process [2024-09-24 11:40:16,285 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:40:16,285 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-24 11:40:16,285 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:40:16,285 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-24 11:40:16,389 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:16,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:16,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1721175476, now seen corresponding path program 1 times [2024-09-24 11:40:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634922508] [2024-09-24 11:40:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-09-24 11:40:16,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:40:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634922508] [2024-09-24 11:40:16,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634922508] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:40:16,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:40:16,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:40:16,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350463350] [2024-09-24 11:40:16,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:40:16,403 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-24 11:40:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-24 11:40:16,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-24 11:40:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,403 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:16,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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) [2024-09-24 11:40:16,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,616 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-09-24 11:40:16,617 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:16,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:16,617 INFO L85 PathProgramCache]: Analyzing trace with hash -870960176, now seen corresponding path program 1 times [2024-09-24 11:40:16,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:16,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012903416] [2024-09-24 11:40:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:16,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-24 11:40:16,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:40:16,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012903416] [2024-09-24 11:40:16,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012903416] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:40:16,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:40:16,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:40:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486145600] [2024-09-24 11:40:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:40:16,690 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:40:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:16,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:40:16,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:40:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,691 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:16,691 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-09-24 11:40:16,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:16,815 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-09-24 11:40:16,815 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:16,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1636275742, now seen corresponding path program 1 times [2024-09-24 11:40:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:16,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767284251] [2024-09-24 11:40:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-24 11:40:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:40:16,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767284251] [2024-09-24 11:40:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767284251] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:40:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:40:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-24 11:40:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907730205] [2024-09-24 11:40:16,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:40:16,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:40:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:16,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:40:16,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:40:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,913 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:16,913 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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) [2024-09-24 11:40:16,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:16,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:16,913 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,216 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-09-24 11:40:17,216 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:17,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2061198837, now seen corresponding path program 1 times [2024-09-24 11:40:17,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:17,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51530819] [2024-09-24 11:40:17,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:17,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-24 11:40:17,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:40:17,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51530819] [2024-09-24 11:40:17,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51530819] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:40:17,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-24 11:40:17,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-24 11:40:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499540653] [2024-09-24 11:40:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:40:17,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-24 11:40:17,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-24 11:40:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-24 11:40:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:17,269 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:17,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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) [2024-09-24 11:40:17,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:17,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:17,435 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-09-24 11:40:17,435 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:17,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash -74976258, now seen corresponding path program 1 times [2024-09-24 11:40:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:17,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063527393] [2024-09-24 11:40:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:40:17,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:40:17,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063527393] [2024-09-24 11:40:17,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063527393] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:40:17,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664106693] [2024-09-24 11:40:17,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:17,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:40:17,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:40:17,758 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:40:17,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-24 11:40:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:18,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-24 11:40:18,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:40:18,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-24 11:40:18,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:40:18,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:40:18,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-24 11:40:18,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:40:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-24 11:40:18,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-24 11:40:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664106693] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-24 11:40:18,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-24 11:40:18,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-24 11:40:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151832860] [2024-09-24 11:40:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-24 11:40:18,497 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-24 11:40:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-24 11:40:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-24 11:40:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:18,497 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:18,497 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-24 11:40:18,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:18,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:18,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:18,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:18,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:18,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:40:18,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-24 11:40:18,901 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,51 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:40:18,901 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:18,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:18,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1990766219, now seen corresponding path program 1 times [2024-09-24 11:40:18,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:18,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030990593] [2024-09-24 11:40:18,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:18,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:40:19,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-24 11:40:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030990593] [2024-09-24 11:40:19,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030990593] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-24 11:40:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754063641] [2024-09-24 11:40:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:19,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:40:19,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:40:19,352 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-24 11:40:19,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-24 11:40:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-24 11:40:19,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-24 11:40:19,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-24 11:40:19,653 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-24 11:40:19,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-09-24 11:40:20,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-24 11:40:20,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-09-24 11:40:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:40:20,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-24 11:40:20,948 INFO L349 Elim1Store]: treesize reduction 15, result has 71.7 percent of original size [2024-09-24 11:40:20,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2024-09-24 11:40:20,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-24 11:40:20,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2024-09-24 11:40:21,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-09-24 11:40:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-24 11:40:23,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754063641] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-24 11:40:23,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-24 11:40:23,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-09-24 11:40:23,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180908802] [2024-09-24 11:40:23,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-24 11:40:23,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-24 11:40:23,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-24 11:40:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-24 11:40:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=150, Unknown=5, NotChecked=0, Total=210 [2024-09-24 11:40:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:23,451 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-24 11:40:23,451 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 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) [2024-09-24 11:40:23,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:23,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:23,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:23,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:40:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-24 11:40:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-24 11:40:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-24 11:40:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-24 11:40:24,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-09-24 11:40:24,889 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,52 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-24 11:40:24,889 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-24 11:40:24,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-24 11:40:24,889 INFO L85 PathProgramCache]: Analyzing trace with hash 286844680, now seen corresponding path program 1 times [2024-09-24 11:40:24,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-24 11:40:24,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859987898] [2024-09-24 11:40:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-24 11:40:24,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-24 11:40:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:40:24,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-24 11:40:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-24 11:40:24,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-24 11:40:24,948 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-24 11:40:24,948 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-09-24 11:40:24,948 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-24 11:40:24,949 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-24 11:40:24,949 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-09-24 11:40:24,949 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-09-24 11:40:24,950 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN (3/6) [2024-09-24 11:40:24,950 WARN L239 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-24 11:40:24,950 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-09-24 11:40:24,982 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-09-24 11:40:24,984 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:40:24,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-24 11:40:24,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-24 11:40:24,985 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-24 11:40:24,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (53)] Waiting until timeout for monitored process [2024-09-24 11:40:24,989 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-24 11:40:24,989 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of6ForFork0 ======== [2024-09-24 11:40:24,990 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@1c464c7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-24 11:40:24,990 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. Killed by 15