./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_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_92-evilcollapse_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 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 21:42:32,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 21:42:32,477 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 21:42:32,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 21:42:32,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 21:42:32,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 21:42:32,512 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 21:42:32,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 21:42:32,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 21:42:32,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 21:42:32,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 21:42:32,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 21:42:32,514 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 21:42:32,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 21:42:32,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 21:42:32,517 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 21:42:32,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 21:42:32,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 21:42:32,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 21:42:32,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 21:42:32,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 21:42:32,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 21:42:32,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 21:42:32,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 21:42:32,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 21:42:32,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 21:42:32,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 21:42:32,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 21:42:32,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 21:42:32,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 21:42:32,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 21:42:32,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 21:42:32,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 21:42:32,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 21:42:32,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 21:42:32,528 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 21:42:32,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 21:42:32,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 21:42:32,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 21:42:32,528 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 21:42:32,529 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 21:42:32,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2024-09-08 21:42:32,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 21:42:32,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 21:42:32,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 21:42:32,824 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 21:42:32,824 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 21:42:32,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-09-08 21:42:34,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 21:42:34,482 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 21:42:34,483 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2024-09-08 21:42:34,508 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1732e161f/6f9444ed806f4ebd9408ee42e9451f62/FLAGed62fbf48 [2024-09-08 21:42:34,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1732e161f/6f9444ed806f4ebd9408ee42e9451f62 [2024-09-08 21:42:34,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 21:42:34,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 21:42:34,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 21:42:34,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 21:42:34,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 21:42:34,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:42:34" (1/1) ... [2024-09-08 21:42:34,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550d1b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:34, skipping insertion in model container [2024-09-08 21:42:34,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:42:34" (1/1) ... [2024-09-08 21:42:34,584 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 21:42:34,972 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_92-evilcollapse_racing.i[47038,47051] [2024-09-08 21:42:34,990 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:34,991 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:34,991 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:34,992 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:35,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 21:42:35,065 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 21:42:35,114 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_92-evilcollapse_racing.i[47038,47051] [2024-09-08 21:42:35,120 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:35,121 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:35,122 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:35,123 WARN L1663 CHandler]: Possible shadowing of function new [2024-09-08 21:42:35,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 21:42:35,197 INFO L204 MainTranslator]: Completed translation [2024-09-08 21:42:35,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35 WrapperNode [2024-09-08 21:42:35,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 21:42:35,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 21:42:35,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 21:42:35,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 21:42:35,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,252 INFO L138 Inliner]: procedures = 279, calls = 55, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 236 [2024-09-08 21:42:35,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 21:42:35,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 21:42:35,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 21:42:35,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 21:42:35,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 21:42:35,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 21:42:35,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 21:42:35,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 21:42:35,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (1/1) ... [2024-09-08 21:42:35,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 21:42:35,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:42:35,343 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 21:42:35,345 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 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-08 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-09-08 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-08 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-08 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 21:42:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-08 21:42:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 21:42:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 21:42:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-09-08 21:42:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-09-08 21:42:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-09-08 21:42:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 21:42:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 21:42:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 21:42:35,390 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 21:42:35,560 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 21:42:35,563 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 21:42:35,977 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 21:42:35,978 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 21:42:36,353 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 21:42:36,355 INFO L318 CfgBuilder]: Removed 16 assume(true) statements. [2024-09-08 21:42:36,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:42:36 BoogieIcfgContainer [2024-09-08 21:42:36,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 21:42:36,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 21:42:36,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 21:42:36,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 21:42:36,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:42:34" (1/3) ... [2024-09-08 21:42:36,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f54c904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:42:36, skipping insertion in model container [2024-09-08 21:42:36,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:42:35" (2/3) ... [2024-09-08 21:42:36,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f54c904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:42:36, skipping insertion in model container [2024-09-08 21:42:36,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:42:36" (3/3) ... [2024-09-08 21:42:36,365 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2024-09-08 21:42:36,381 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 21:42:36,385 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-08 21:42:36,385 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 21:42:36,439 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-09-08 21:42:36,486 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:42:36,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 21:42:36,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:42:36,488 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 21:42:36,490 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 21:42:36,536 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 21:42:36,551 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-09-08 21:42:36,559 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;@14ddd245, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:42:36,560 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 21:42:36,713 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:42:36,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:42:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -815290340, now seen corresponding path program 1 times [2024-09-08 21:42:36,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:42:36,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015051435] [2024-09-08 21:42:36,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:42:36,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:42:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:42:37,124 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 21:42:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:42:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015051435] [2024-09-08 21:42:37,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015051435] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:42:37,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:42:37,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 21:42:37,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594803693] [2024-09-08 21:42:37,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:42:37,133 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:42:37,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:42:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:42:37,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:42:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:37,165 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:42:37,166 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:42:37,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:37,347 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 21:42:37,347 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:42:37,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:42:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash -312172721, now seen corresponding path program 1 times [2024-09-08 21:42:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:42:37,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982112308] [2024-09-08 21:42:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:42:37,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:42:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:42:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:42:37,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:42:37,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982112308] [2024-09-08 21:42:37,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982112308] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:42:37,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:42:37,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 21:42:37,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168886898] [2024-09-08 21:42:37,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:42:37,489 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:42:37,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:42:37,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:42:37,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:42:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:37,490 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:42:37,491 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:42:37,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:37,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:37,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:37,640 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 21:42:37,640 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:42:37,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:42:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash 573698871, now seen corresponding path program 1 times [2024-09-08 21:42:37,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:42:37,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827863677] [2024-09-08 21:42:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:42:37,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:42:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:42:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:42:37,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:42:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827863677] [2024-09-08 21:42:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827863677] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:42:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70007908] [2024-09-08 21:42:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:42:37,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:42:37,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:42:37,804 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 21:42:37,806 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 21:42:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:42:37,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-08 21:42:37,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:42:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:42:38,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:42:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:42:38,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70007908] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:42:38,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:42:38,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-08 21:42:38,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627460224] [2024-09-08 21:42:38,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:42:38,040 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-08 21:42:38,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:42:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-08 21:42:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-08 21:42:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:38,043 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:42:38,043 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 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 21:42:38,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:38,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:38,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:38,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:38,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:42:38,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-08 21:42:38,445 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,SelfDestructingSolverStorable2 [2024-09-08 21:42:38,445 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:42:38,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:42:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1611553103, now seen corresponding path program 2 times [2024-09-08 21:42:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:42:38,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785492084] [2024-09-08 21:42:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:42:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:42:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:42:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-08 21:42:38,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:42:38,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785492084] [2024-09-08 21:42:38,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785492084] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:42:38,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95610753] [2024-09-08 21:42:38,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 21:42:38,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:42:38,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:42:38,713 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 21:42:38,715 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 21:42:38,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 21:42:38,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:42:38,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 21:42:38,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:42:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:42:39,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:42:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 21:42:39,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95610753] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:42:39,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:42:39,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2024-09-08 21:42:39,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619782909] [2024-09-08 21:42:39,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:42:39,129 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-08 21:42:39,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:42:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-08 21:42:39,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-09-08 21:42:39,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:39,131 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:42:39,131 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:42:39,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:39,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:39,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:42:39,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:42:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:42:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 21:42:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-08 21:42:39,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 21:42:40,119 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:42:40,120 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:42:40,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:42:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1827128322, now seen corresponding path program 3 times [2024-09-08 21:42:40,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:42:40,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180866593] [2024-09-08 21:42:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:42:40,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:42:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:42:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-08 21:42:41,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:42:41,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180866593] [2024-09-08 21:42:41,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180866593] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:42:41,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104567532] [2024-09-08 21:42:41,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 21:42:41,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:42:41,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:42:41,441 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 21:42:41,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15