./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_77-tricky_address4_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_77-tricky_address4_racing.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 21:39:27,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 21:39:27,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 21:39:27,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 21:39:27,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 21:39:27,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 21:39:27,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 21:39:27,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 21:39:27,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 21:39:27,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 21:39:27,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 21:39:27,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 21:39:27,352 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 21:39:27,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 21:39:27,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 21:39:27,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 21:39:27,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 21:39:27,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 21:39:27,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 21:39:27,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 21:39:27,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 21:39:27,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 21:39:27,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 21:39:27,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 21:39:27,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 21:39:27,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 21:39:27,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 21:39:27,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 21:39:27,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 21:39:27,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 21:39:27,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 21:39:27,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 21:39:27,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 21:39:27,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 21:39:27,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 21:39:27,363 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 21:39:27,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 21:39:27,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 21:39:27,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 21:39:27,364 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 21:39:27,365 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 21:39:27,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-09-08 21:39:27,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 21:39:27,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 21:39:27,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 21:39:27,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 21:39:27,635 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 21:39:27,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-09-08 21:39:29,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 21:39:29,251 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 21:39:29,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-09-08 21:39:29,278 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/948dda34d/3023bb3b50b24d2ca4380e54776ee89e/FLAGf358f3161 [2024-09-08 21:39:29,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/948dda34d/3023bb3b50b24d2ca4380e54776ee89e [2024-09-08 21:39:29,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 21:39:29,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 21:39:29,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 21:39:29,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 21:39:29,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 21:39:29,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:39:29" (1/1) ... [2024-09-08 21:39:29,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1162881b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:29, skipping insertion in model container [2024-09-08 21:39:29,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:39:29" (1/1) ... [2024-09-08 21:39:29,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 21:39:29,797 WARN L247 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_77-tricky_address4_racing.i[41323,41336] [2024-09-08 21:39:29,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 21:39:29,948 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 21:39:30,006 WARN L247 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_77-tricky_address4_racing.i[41323,41336] [2024-09-08 21:39:30,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 21:39:30,084 INFO L204 MainTranslator]: Completed translation [2024-09-08 21:39:30,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30 WrapperNode [2024-09-08 21:39:30,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 21:39:30,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 21:39:30,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 21:39:30,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 21:39:30,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,147 INFO L138 Inliner]: procedures = 271, calls = 49, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 216 [2024-09-08 21:39:30,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 21:39:30,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 21:39:30,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 21:39:30,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 21:39:30,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 21:39:30,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 21:39:30,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 21:39:30,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 21:39:30,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (1/1) ... [2024-09-08 21:39:30,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 21:39:30,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:30,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 21:39:30,227 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 [2024-09-08 21:39:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-08 21:39:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-08 21:39:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-08 21:39:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 21:39:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 21:39:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-08 21:39:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 21:39:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-09-08 21:39:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-09-08 21:39:30,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 21:39:30,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 21:39:30,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 21:39:30,281 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 21:39:30,451 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 21:39:30,453 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 21:39:30,752 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 21:39:30,753 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 21:39:30,906 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 21:39:30,906 INFO L318 CfgBuilder]: Removed 23 assume(true) statements. [2024-09-08 21:39:30,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:39:30 BoogieIcfgContainer [2024-09-08 21:39:30,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 21:39:30,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 21:39:30,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 21:39:30,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 21:39:30,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:39:29" (1/3) ... [2024-09-08 21:39:30,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230e407c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:39:30, skipping insertion in model container [2024-09-08 21:39:30,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:39:30" (2/3) ... [2024-09-08 21:39:30,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230e407c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:39:30, skipping insertion in model container [2024-09-08 21:39:30,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:39:30" (3/3) ... [2024-09-08 21:39:30,916 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-09-08 21:39:30,933 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 21:39:30,934 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-08 21:39:30,935 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 21:39:30,990 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-09-08 21:39:31,043 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:39:31,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 21:39:31,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:31,045 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) [2024-09-08 21:39:31,046 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 [2024-09-08 21:39:31,086 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 21:39:31,101 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-09-08 21:39:31,111 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6908532e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:39:31,111 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 21:39:31,264 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:31,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1569655092, now seen corresponding path program 1 times [2024-09-08 21:39:31,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:31,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305400672] [2024-09-08 21:39:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:31,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 21:39:31,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:31,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305400672] [2024-09-08 21:39:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305400672] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:39:31,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:39:31,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 21:39:31,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176900657] [2024-09-08 21:39:31,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:39:31,627 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:39:31,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:31,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:39:31,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:39:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:31,657 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:31,658 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) [2024-09-08 21:39:31,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:32,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:32,240 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 21:39:32,240 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:32,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash 518745025, now seen corresponding path program 1 times [2024-09-08 21:39:32,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:32,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198914352] [2024-09-08 21:39:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:32,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:32,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:32,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198914352] [2024-09-08 21:39:32,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198914352] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491614266] [2024-09-08 21:39:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:32,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:32,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:32,397 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) [2024-09-08 21:39:32,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 21:39:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:32,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 21:39:32,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:32,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:32,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491614266] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:32,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:32,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-08 21:39:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181305446] [2024-09-08 21:39:32,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:32,613 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 21:39:32,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 21:39:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-08 21:39:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:32,615 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:32,616 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:39:32,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:32,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:32,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:32,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 21:39:32,947 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 [2024-09-08 21:39:32,948 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:32,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash -626157979, now seen corresponding path program 2 times [2024-09-08 21:39:32,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:32,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657354212] [2024-09-08 21:39:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:32,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:33,102 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:33,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:33,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657354212] [2024-09-08 21:39:33,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657354212] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:33,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125841516] [2024-09-08 21:39:33,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 21:39:33,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:33,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:33,107 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) [2024-09-08 21:39:33,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 21:39:33,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 21:39:33,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:39:33,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 21:39:33,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:33,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:33,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125841516] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:33,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:33,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-08 21:39:33,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214943323] [2024-09-08 21:39:33,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:33,303 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 21:39:33,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:33,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 21:39:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-08 21:39:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:33,305 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:33,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 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) [2024-09-08 21:39:33,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:33,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:33,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:33,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:33,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:33,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 21:39:33,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:33,659 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:33,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1903798043, now seen corresponding path program 3 times [2024-09-08 21:39:33,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:33,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915948523] [2024-09-08 21:39:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:39:34,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915948523] [2024-09-08 21:39:34,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915948523] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358916379] [2024-09-08 21:39:34,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 21:39:34,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:34,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:34,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:39:34,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 21:39:34,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 21:39:34,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:39:34,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 21:39:34,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:34,167 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 7 treesize of output 6 [2024-09-08 21:39:34,272 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 21:39:34,272 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 [2024-09-08 21:39:34,299 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 15 treesize of output 10 [2024-09-08 21:39:34,368 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 15 treesize of output 10 [2024-09-08 21:39:34,410 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 39 treesize of output 33 [2024-09-08 21:39:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-08 21:39:34,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:42,509 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array Int Int)) (|~#a~0.offset| Int) (|t_funThread1of1ForFork0_~i~0#1| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_140) |c_~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) is different from false [2024-09-08 21:39:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 1 not checked. [2024-09-08 21:39:42,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358916379] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:42,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:42,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-09-08 21:39:42,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058992855] [2024-09-08 21:39:42,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:42,680 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-08 21:39:42,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:42,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-08 21:39:42,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=93, Unknown=3, NotChecked=20, Total=156 [2024-09-08 21:39:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:42,682 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:42,682 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 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) [2024-09-08 21:39:42,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:42,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:42,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:42,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 21:39:43,205 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:43,206 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:43,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:43,207 INFO L85 PathProgramCache]: Analyzing trace with hash 123398076, now seen corresponding path program 1 times [2024-09-08 21:39:43,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:43,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155983910] [2024-09-08 21:39:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:43,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:39:43,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:43,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155983910] [2024-09-08 21:39:43,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155983910] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:43,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51803350] [2024-09-08 21:39:43,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:43,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:43,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:43,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:39:43,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 21:39:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:43,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 21:39:43,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:43,400 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 [2024-09-08 21:39:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-08 21:39:43,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 21:39:43,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51803350] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:39:43,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 21:39:43,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-09-08 21:39:43,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550229406] [2024-09-08 21:39:43,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:39:43,412 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:39:43,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:43,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:39:43,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 21:39:43,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:43,413 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:43,413 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:39:43,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:43,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:43,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:43,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-08 21:39:43,762 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:43,762 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:43,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1745557267, now seen corresponding path program 1 times [2024-09-08 21:39:43,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:43,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005654110] [2024-09-08 21:39:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:43,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:39:43,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:43,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005654110] [2024-09-08 21:39:43,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005654110] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:43,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771337505] [2024-09-08 21:39:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:43,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:43,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:43,831 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) [2024-09-08 21:39:43,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 21:39:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:43,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 21:39:43,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:39:43,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:39:43,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771337505] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:43,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:43,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-08 21:39:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941072635] [2024-09-08 21:39:43,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:43,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 21:39:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:43,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 21:39:43,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-08 21:39:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:43,979 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:43,979 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 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) [2024-09-08 21:39:43,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:43,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:43,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:43,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:43,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:39:44,068 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-08 21:39:44,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 21:39:44,268 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:44,274 INFO L408 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-09-08 21:39:44,275 INFO L312 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2024-09-08 21:39:44,279 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:39:44,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 21:39:44,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:44,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 21:39:44,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-09-08 21:39:44,286 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 21:39:44,286 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 21:39:44,287 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6908532e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:39:44,288 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-08 21:39:44,332 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 21:39:44,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:44,332 INFO L85 PathProgramCache]: Analyzing trace with hash 987758996, now seen corresponding path program 1 times [2024-09-08 21:39:44,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:44,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080355971] [2024-09-08 21:39:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:44,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:44,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080355971] [2024-09-08 21:39:44,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080355971] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:39:44,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:39:44,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 21:39:44,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934193325] [2024-09-08 21:39:44,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:39:44,359 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:39:44,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:44,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:39:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:39:44,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:44,360 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:44,360 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) 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) [2024-09-08 21:39:44,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:44,388 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-08 21:39:44,389 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 21:39:44,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:44,389 INFO L85 PathProgramCache]: Analyzing trace with hash 846523733, now seen corresponding path program 1 times [2024-09-08 21:39:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:44,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969429988] [2024-09-08 21:39:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:44,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969429988] [2024-09-08 21:39:44,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969429988] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:44,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372121293] [2024-09-08 21:39:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:44,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:44,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:44,428 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) [2024-09-08 21:39:44,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-08 21:39:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:44,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 21:39:44,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372121293] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:44,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:44,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-08 21:39:44,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845785861] [2024-09-08 21:39:44,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:44,540 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 21:39:44,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 21:39:44,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-08 21:39:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:44,541 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:44,541 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 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) [2024-09-08 21:39:44,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:44,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:44,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:44,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-08 21:39:44,770 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:44,771 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 21:39:44,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash -685897223, now seen corresponding path program 2 times [2024-09-08 21:39:44,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:44,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352148731] [2024-09-08 21:39:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:44,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352148731] [2024-09-08 21:39:44,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352148731] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:44,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658013148] [2024-09-08 21:39:44,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 21:39:44,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:44,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:44,845 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) [2024-09-08 21:39:44,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-08 21:39:44,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 21:39:44,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:39:44,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 21:39:44,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:39:44,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658013148] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:44,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:44,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-08 21:39:44,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069160400] [2024-09-08 21:39:44,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:44,989 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 21:39:44,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:44,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 21:39:44,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-08 21:39:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:44,990 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:44,990 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 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) [2024-09-08 21:39:44,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:44,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:44,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:45,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-08 21:39:45,225 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:45,226 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 21:39:45,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1723599993, now seen corresponding path program 3 times [2024-09-08 21:39:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:45,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950858870] [2024-09-08 21:39:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-08 21:39:45,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-08 21:39:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-08 21:39:45,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-08 21:39:45,311 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-08 21:39:45,311 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-09-08 21:39:45,312 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-09-08 21:39:45,312 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-08 21:39:45,313 INFO L408 BasicCegarLoop]: Path program histogram: [3, 1] [2024-09-08 21:39:45,313 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2024-09-08 21:39:45,314 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-09-08 21:39:45,314 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-09-08 21:39:45,342 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 21:39:45,345 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:39:45,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 21:39:45,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:45,348 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 21:39:45,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2024-09-08 21:39:45,351 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 21:39:45,352 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2024-09-08 21:39:45,352 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6908532e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:39:45,352 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 21:39:45,648 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:45,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1162885258, now seen corresponding path program 1 times [2024-09-08 21:39:45,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:45,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676581870] [2024-09-08 21:39:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 21:39:45,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:45,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676581870] [2024-09-08 21:39:45,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676581870] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:39:45,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:39:45,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 21:39:45,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823477116] [2024-09-08 21:39:45,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:39:45,684 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:39:45,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:39:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:39:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:45,685 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:45,686 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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) [2024-09-08 21:39:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:49,240 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-08 21:39:49,241 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:49,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:49,241 INFO L85 PathProgramCache]: Analyzing trace with hash 146429519, now seen corresponding path program 1 times [2024-09-08 21:39:49,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:49,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387920771] [2024-09-08 21:39:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:49,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:49,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:39:49,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:49,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387920771] [2024-09-08 21:39:49,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387920771] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:49,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744642868] [2024-09-08 21:39:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:49,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:49,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:49,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:39:49,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-08 21:39:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:49,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 21:39:49,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:39:49,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:39:49,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744642868] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:49,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:49,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-08 21:39:49,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803059023] [2024-09-08 21:39:49,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:49,406 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 21:39:49,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:49,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 21:39:49,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-08 21:39:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:49,407 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:49,407 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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) [2024-09-08 21:39:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:49,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:50,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:50,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-08 21:39:50,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:50,588 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:50,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:50,588 INFO L85 PathProgramCache]: Analyzing trace with hash 781649003, now seen corresponding path program 2 times [2024-09-08 21:39:50,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:50,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184409169] [2024-09-08 21:39:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:50,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:39:50,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:50,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184409169] [2024-09-08 21:39:50,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184409169] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:50,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233275664] [2024-09-08 21:39:50,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 21:39:50,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:50,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:50,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:39:50,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-08 21:39:50,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 21:39:50,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:39:50,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 21:39:50,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:39:50,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:39:50,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233275664] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:50,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:50,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-08 21:39:50,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738915218] [2024-09-08 21:39:50,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:50,847 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 21:39:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 21:39:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-09-08 21:39:50,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:50,848 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:50,849 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 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) [2024-09-08 21:39:50,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:50,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:50,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:51,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:51,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-08 21:39:51,994 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-08 21:39:51,994 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:51,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:51,994 INFO L85 PathProgramCache]: Analyzing trace with hash -793708053, now seen corresponding path program 3 times [2024-09-08 21:39:51,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:51,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961253137] [2024-09-08 21:39:51,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:51,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:39:52,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:52,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961253137] [2024-09-08 21:39:52,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961253137] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:39:52,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720030416] [2024-09-08 21:39:52,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 21:39:52,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:39:52,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:39:52,278 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) [2024-09-08 21:39:52,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-08 21:39:52,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 21:39:52,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:39:52,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-08 21:39:52,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:39:52,394 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 7 treesize of output 6 [2024-09-08 21:39:52,451 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 21:39:52,451 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 [2024-09-08 21:39:52,471 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 15 treesize of output 10 [2024-09-08 21:39:52,514 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 15 treesize of output 10 [2024-09-08 21:39:52,553 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 39 treesize of output 33 [2024-09-08 21:39:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-08 21:39:52,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:39:56,617 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_539 (Array Int Int)) (|~#a~0.offset| Int) (|t_funThread1of2ForFork0_~i~0#1| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_539) |c_~#a~0.base|) (+ (* |t_funThread1of2ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) is different from false [2024-09-08 21:39:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 2 not checked. [2024-09-08 21:39:56,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720030416] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:39:56,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:39:56,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-09-08 21:39:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379687946] [2024-09-08 21:39:56,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:39:56,728 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-08 21:39:56,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-08 21:39:56,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=94, Unknown=2, NotChecked=20, Total=156 [2024-09-08 21:39:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:56,729 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:56,729 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 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) [2024-09-08 21:39:56,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:56,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:56,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:56,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:39:58,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-08 21:39:58,518 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,SelfDestructingSolverStorable13 [2024-09-08 21:39:58,519 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:58,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:58,519 INFO L85 PathProgramCache]: Analyzing trace with hash -151204257, now seen corresponding path program 1 times [2024-09-08 21:39:58,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:58,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125488675] [2024-09-08 21:39:58,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:58,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:39:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-08 21:39:58,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:39:58,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125488675] [2024-09-08 21:39:58,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125488675] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:39:58,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:39:58,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 21:39:58,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074133137] [2024-09-08 21:39:58,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:39:58,694 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:39:58,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:39:58,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:39:58,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:39:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:58,695 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:39:58,695 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) [2024-09-08 21:39:58,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:58,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:58,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:58,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:39:58,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:39:59,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:39:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:39:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:39:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:39:59,584 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-08 21:39:59,584 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:39:59,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:39:59,585 INFO L85 PathProgramCache]: Analyzing trace with hash -461974521, now seen corresponding path program 1 times [2024-09-08 21:39:59,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:39:59,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624976812] [2024-09-08 21:39:59,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:39:59,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:39:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:40:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 21:40:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:40:11,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624976812] [2024-09-08 21:40:11,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624976812] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:40:11,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450314530] [2024-09-08 21:40:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:40:11,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:40:11,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:40:11,400 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) [2024-09-08 21:40:11,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-08 21:40:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:40:11,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-08 21:40:11,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:40:11,540 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 7 treesize of output 6 [2024-09-08 21:40:11,638 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 21:40:11,639 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 [2024-09-08 21:40:11,681 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 15 treesize of output 10 [2024-09-08 21:40:11,755 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 16 treesize of output 12 [2024-09-08 21:40:11,885 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 15 treesize of output 10 [2024-09-08 21:40:11,994 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-09-08 21:40:11,994 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 25 treesize of output 13 [2024-09-08 21:40:12,105 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 15 treesize of output 10 [2024-09-08 21:40:12,162 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 32 treesize of output 25 [2024-09-08 21:40:12,253 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 55 treesize of output 49 [2024-09-08 21:40:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:40:12,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:40:12,916 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 25 treesize of output 16 [2024-09-08 21:40:12,935 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (+ (* |c_t_funThread1of2ForFork0_~i~0#1| 28) |c_~#a~0.offset| 28))) (and (forall ((v_ArrVal_665 (Array Int Int)) (|v_t_funThread2of2ForFork0_~i~0#1_26| Int)) (let ((.cse2 (* |v_t_funThread2of2ForFork0_~i~0#1_26| 28))) (or (= (select (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665) |c_~#a~0.base|)) (.cse1 (+ |c_~#a~0.offset| .cse2 28))) (store .cse0 .cse1 (+ (select .cse0 .cse1) 1))) .cse3) 0) (= |c_t_funThread1of2ForFork0_~p~0#1.offset| (+ |c_~#a~0.offset| .cse2))))) (or (forall ((v_ArrVal_665 (Array Int Int)) (|v_t_funThread2of2ForFork0_~i~0#1_26| Int)) (= (select (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665) |c_~#a~0.base|)) (.cse5 (+ |c_~#a~0.offset| (* |v_t_funThread2of2ForFork0_~i~0#1_26| 28) 28))) (store .cse4 .cse5 (+ (select .cse4 .cse5) 1))) .cse3) 0)) (= |c_~#a~0.base| |c_t_funThread1of2ForFork0_~p~0#1.base|)))) is different from false [2024-09-08 21:40:14,965 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of2ForFork0_~i~0#1_26| Int) (|~#a~0.offset| Int) (v_ArrVal_665 (Array Int Int)) (|v_t_funThread2of2ForFork0_~i~0#1_26| Int)) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665) |c_~#a~0.base|) (+ (* |v_t_funThread1of2ForFork0_~i~0#1_26| 28) 28 |~#a~0.offset|)) 0) (= |v_t_funThread2of2ForFork0_~i~0#1_26| |v_t_funThread1of2ForFork0_~i~0#1_26|))) is different from false [2024-09-08 21:40:16,972 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of2ForFork0_~i~0#1_26| Int) (|~#a~0.offset| Int) (v_ArrVal_665 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_665) |c_~#a~0.base|) (+ (* |v_t_funThread1of2ForFork0_~i~0#1_26| 28) 28 |~#a~0.offset|)) 0)) is different from false [2024-09-08 21:40:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 4 not checked. [2024-09-08 21:40:17,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450314530] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:40:17,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:40:17,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 13] total 43 [2024-09-08 21:40:17,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110564977] [2024-09-08 21:40:17,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:40:17,119 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-08 21:40:17,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:40:17,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-08 21:40:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1451, Unknown=10, NotChecked=240, Total=1892 [2024-09-08 21:40:17,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:40:17,121 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:40:17,122 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.1136363636363638) internal successors, (93), 43 states have internal predecessors, (93), 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) [2024-09-08 21:40:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:40:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:40:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:40:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:40:21,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:21,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:40:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:40:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:40:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-08 21:40:21,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-08 21:40:21,535 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-08 21:40:21,536 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:40:21,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:40:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1100523891, now seen corresponding path program 1 times [2024-09-08 21:40:21,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:40:21,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129350837] [2024-09-08 21:40:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:40:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:40:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:40:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:40:21,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:40:21,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129350837] [2024-09-08 21:40:21,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129350837] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:40:21,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218698000] [2024-09-08 21:40:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:40:21,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:40:21,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:40:21,647 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:40:21,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-08 21:40:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:40:21,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-08 21:40:21,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:40:21,814 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:40:21,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:40:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-08 21:40:21,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218698000] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:40:21,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:40:21,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-08 21:40:21,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137053501] [2024-09-08 21:40:21,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:40:21,855 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-08 21:40:21,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:40:21,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-08 21:40:21,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-08 21:40:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:40:21,856 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:40:21,856 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 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) [2024-09-08 21:40:21,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:21,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:40:21,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:40:21,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:40:21,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:21,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-09-08 21:40:21,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:40:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:40:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:40:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:40:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 21:40:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 21:40:22,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-08 21:40:23,165 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-08 21:40:23,166 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:40:23,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:40:23,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2022260469, now seen corresponding path program 1 times [2024-09-08 21:40:23,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:40:23,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614554768] [2024-09-08 21:40:23,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:40:23,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:40:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:40:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-08 21:40:23,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:40:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614554768] [2024-09-08 21:40:23,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614554768] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:40:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728863623] [2024-09-08 21:40:23,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:40:23,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:40:23,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:40:23,557 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) [2024-09-08 21:40:23,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-08 21:40:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:40:23,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-08 21:40:23,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:40:23,707 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 7 treesize of output 6 [2024-09-08 21:40:23,749 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-09-08 21:40:23,750 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 [2024-09-08 21:40:23,764 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 15 treesize of output 10 [2024-09-08 21:40:23,783 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 15 treesize of output 10 [2024-09-08 21:40:23,814 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 15 treesize of output 10 [2024-09-08 21:40:23,835 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 32 treesize of output 25 [2024-09-08 21:40:23,887 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 48 treesize of output 41 [2024-09-08 21:40:23,920 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 39 treesize of output 33 [2024-09-08 21:40:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-08 21:40:23,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:40:35,980 WARN L854 $PredicateComparison]: unable to prove that (forall ((|t_funThread1of2ForFork0_~i~0#1| Int)) (= (select (let ((.cse0 (select |c_#memory_int| |c_~#a~0.base|)) (.cse1 (+ |c_~#a~0.offset| (* |c_t_funThread2of2ForFork0_~i~0#1| 28)))) (store .cse0 .cse1 (+ (- 1) (select .cse0 .cse1)))) (+ |c_~#a~0.offset| (* |t_funThread1of2ForFork0_~i~0#1| 28))) 0)) is different from false [2024-09-08 21:40:46,054 WARN L854 $PredicateComparison]: unable to prove that (forall ((|~#a~0.offset| Int) (|t_funThread2of2ForFork0_~i~0#1| Int) (|t_funThread1of2ForFork0_~i~0#1| Int) (v_ArrVal_874 (Array Int Int))) (= (select (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_874) |c_~#a~0.base|)) (.cse1 (+ (* 28 |t_funThread2of2ForFork0_~i~0#1|) |~#a~0.offset|))) (store .cse0 .cse1 (select .cse0 .cse1))) (+ (* |t_funThread1of2ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) is different from false [2024-09-08 21:40:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 2 not checked. [2024-09-08 21:40:46,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728863623] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:40:46,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:40:46,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 17 [2024-09-08 21:40:46,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806051330] [2024-09-08 21:40:46,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:40:46,180 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-08 21:40:46,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:40:46,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-08 21:40:46,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=178, Unknown=7, NotChecked=58, Total=306 [2024-09-08 21:40:46,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:40:46,181 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:40:46,181 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 17 states have internal predecessors, (109), 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) [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 21:40:46,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:40:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 21:40:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 21:40:46,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-08 21:40:46,857 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,SelfDestructingSolverStorable17 [2024-09-08 21:40:46,857 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:40:46,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:40:46,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1442424972, now seen corresponding path program 1 times [2024-09-08 21:40:46,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:40:46,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559521513] [2024-09-08 21:40:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:40:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:40:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15