./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_70-funloop_racefree.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 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_70-funloop_racefree.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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 16:14:49,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 16:14:49,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 16:14:49,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 16:14:49,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 16:14:49,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 16:14:49,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 16:14:49,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 16:14:49,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 16:14:49,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 16:14:49,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 16:14:49,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 16:14:49,276 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 16:14:49,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 16:14:49,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 16:14:49,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 16:14:49,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 16:14:49,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 16:14:49,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 16:14:49,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 16:14:49,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 16:14:49,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 16:14:49,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 16:14:49,283 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 16:14:49,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 16:14:49,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 16:14:49,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 16:14:49,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 16:14:49,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 16:14:49,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 16:14:49,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 16:14:49,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 16:14:49,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 16:14:49,286 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 16:14:49,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 16:14:49,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 16:14:49,287 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 16:14:49,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 16:14:49,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 16:14:49,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 16:14:49,289 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 16:14:49,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-18 16:14:49,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 16:14:49,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 16:14:49,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 16:14:49,560 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 16:14:49,560 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 16:14:49,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-10-18 16:14:50,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 16:14:51,220 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 16:14:51,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-10-18 16:14:51,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c5dbecb4f/71e316d606324b95af3609394b8e9eb7/FLAGd6f928d5a [2024-10-18 16:14:51,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c5dbecb4f/71e316d606324b95af3609394b8e9eb7 [2024-10-18 16:14:51,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 16:14:51,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 16:14:51,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 16:14:51,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 16:14:51,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 16:14:51,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 04:14:51" (1/1) ... [2024-10-18 16:14:51,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c13051e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:51, skipping insertion in model container [2024-10-18 16:14:51,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 04:14:51" (1/1) ... [2024-10-18 16:14:51,591 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 16:14:52,039 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_70-funloop_racefree.i[41323,41336] [2024-10-18 16:14:52,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 16:14:52,094 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 16:14:52,129 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_70-funloop_racefree.i[41323,41336] [2024-10-18 16:14:52,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 16:14:52,194 INFO L204 MainTranslator]: Completed translation [2024-10-18 16:14:52,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52 WrapperNode [2024-10-18 16:14:52,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 16:14:52,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 16:14:52,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 16:14:52,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 16:14:52,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,261 INFO L138 Inliner]: procedures = 272, calls = 35, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2024-10-18 16:14:52,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 16:14:52,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 16:14:52,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 16:14:52,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 16:14:52,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,289 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 16:14:52,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 16:14:52,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 16:14:52,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 16:14:52,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (1/1) ... [2024-10-18 16:14:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 16:14:52,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:14:52,342 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) [2024-10-18 16:14:52,350 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 [2024-10-18 16:14:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-18 16:14:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-18 16:14:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-18 16:14:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 16:14:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 16:14:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-18 16:14:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 16:14:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-18 16:14:52,397 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-18 16:14:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 16:14:52,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 16:14:52,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 16:14:52,400 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 16:14:52,554 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 16:14:52,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 16:14:52,816 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 16:14:52,816 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 16:14:53,004 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 16:14:53,005 INFO L314 CfgBuilder]: Removed 25 assume(true) statements. [2024-10-18 16:14:53,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 04:14:53 BoogieIcfgContainer [2024-10-18 16:14:53,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 16:14:53,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 16:14:53,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 16:14:53,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 16:14:53,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 04:14:51" (1/3) ... [2024-10-18 16:14:53,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c33b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 04:14:53, skipping insertion in model container [2024-10-18 16:14:53,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 04:14:52" (2/3) ... [2024-10-18 16:14:53,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c33b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 04:14:53, skipping insertion in model container [2024-10-18 16:14:53,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 04:14:53" (3/3) ... [2024-10-18 16:14:53,014 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-10-18 16:14:53,027 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 16:14:53,027 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-18 16:14:53,027 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 16:14:53,064 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-18 16:14:53,115 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 16:14:53,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 16:14:53,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:14:53,120 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) [2024-10-18 16:14:53,121 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 [2024-10-18 16:14:53,219 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 16:14:53,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:14:53,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2024-10-18 16:14:53,258 INFO L333 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;@3e1f1d6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 16:14:53,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-18 16:14:53,799 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:14:53,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:14:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1853550032, now seen corresponding path program 1 times [2024-10-18 16:14:53,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:14:53,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756899777] [2024-10-18 16:14:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:14:53,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:14:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:14:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:54,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:14:54,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756899777] [2024-10-18 16:14:54,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756899777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 16:14:54,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 16:14:54,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 16:14:54,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166316976] [2024-10-18 16:14:54,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 16:14:54,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 16:14:54,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:14:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 16:14:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 16:14:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:14:54,180 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:14:54,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 16:14:54,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:14:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:14:54,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-18 16:14:54,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:14:54,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:14:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1805902569, now seen corresponding path program 1 times [2024-10-18 16:14:54,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:14:54,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813623061] [2024-10-18 16:14:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:14:54,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:14:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:14:54,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:54,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:14:54,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813623061] [2024-10-18 16:14:54,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813623061] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:14:54,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217226273] [2024-10-18 16:14:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:14:54,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:14:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:14:54,423 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) [2024-10-18 16:14:54,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-18 16:14:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:14:54,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-18 16:14:54,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:14:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:54,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:14:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:54,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217226273] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:14:54,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:14:54,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-18 16:14:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132204980] [2024-10-18 16:14:54,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:14:54,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-18 16:14:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:14:54,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-18 16:14:54,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-18 16:14:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:14:54,613 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:14:54,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 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) [2024-10-18 16:14:54,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:14:54,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:14:54,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:14:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:14:54,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-18 16:14:54,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-18 16:14:54,891 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:14:54,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:14:54,892 INFO L85 PathProgramCache]: Analyzing trace with hash -342103024, now seen corresponding path program 2 times [2024-10-18 16:14:54,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:14:54,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901412888] [2024-10-18 16:14:54,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:14:54,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:14:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:14:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:55,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:14:55,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901412888] [2024-10-18 16:14:55,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901412888] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:14:55,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120279612] [2024-10-18 16:14:55,070 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 16:14:55,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:14:55,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:14:55,073 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) [2024-10-18 16:14:55,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-18 16:14:55,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 16:14:55,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 16:14:55,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 16:14:55,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:14:55,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:55,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:14:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 16:14:55,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120279612] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:14:55,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:14:55,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-18 16:14:55,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082633777] [2024-10-18 16:14:55,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:14:55,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-18 16:14:55,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:14:55,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-18 16:14:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-18 16:14:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:14:55,283 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:14:55,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 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) [2024-10-18 16:14:55,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:14:55,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:14:55,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:14:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:14:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:14:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:14:55,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-18 16:14:55,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:14:55,591 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:14:55,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:14:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1712501392, now seen corresponding path program 3 times [2024-10-18 16:14:55,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:14:55,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714389419] [2024-10-18 16:14:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:14:55,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:14:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:14:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:14:55,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:14:55,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714389419] [2024-10-18 16:14:55,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714389419] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:14:55,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114672225] [2024-10-18 16:14:55,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 16:14:55,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:14:55,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:14:55,976 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) [2024-10-18 16:14:55,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-18 16:14:56,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-18 16:14:56,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 16:14:56,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-18 16:14:56,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:14:56,115 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 [2024-10-18 16:14:56,206 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 16:14:56,207 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 [2024-10-18 16:14:56,233 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 [2024-10-18 16:14:56,308 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 [2024-10-18 16:14:56,356 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 31 treesize of output 25 [2024-10-18 16:14:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:14:56,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:15:02,450 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array Int Int)) (|t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_140) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) is different from false [2024-10-18 16:15:02,473 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_140 (Array Int Int)) (|t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_140) |c_~#cache~0.base|) |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) is different from false [2024-10-18 16:15:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 2 not checked. [2024-10-18 16:15:02,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114672225] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:15:02,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:15:02,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-10-18 16:15:02,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39371693] [2024-10-18 16:15:02,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:15:02,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 16:15:02,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:15:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 16:15:02,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=122, Unknown=4, NotChecked=46, Total=210 [2024-10-18 16:15:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:02,613 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:15:02,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 16:15:02,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:02,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:02,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:02,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:02,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:02,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:02,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-18 16:15:03,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:03,001 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:15:03,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:15:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2049452556, now seen corresponding path program 1 times [2024-10-18 16:15:03,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:15:03,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158809181] [2024-10-18 16:15:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:15:03,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:15:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:15:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:15:03,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:15:03,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158809181] [2024-10-18 16:15:03,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158809181] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:15:03,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109297956] [2024-10-18 16:15:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:15:03,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:03,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:15:03,746 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) [2024-10-18 16:15:03,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-18 16:15:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:15:03,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-18 16:15:03,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:15:03,868 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 [2024-10-18 16:15:03,933 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 16:15:03,933 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 [2024-10-18 16:15:03,957 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 [2024-10-18 16:15:04,019 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 [2024-10-18 16:15:04,076 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 24 treesize of output 17 [2024-10-18 16:15:04,125 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 [2024-10-18 16:15:04,230 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 37 treesize of output 31 [2024-10-18 16:15:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:15:04,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:15:16,369 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_26| Int)) (= (select (select (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (let ((.cse0 (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|))) (store .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ (- 1) (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_26|) 0)) is different from false [2024-10-18 16:15:18,424 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_237 (Array Int Int)) (|t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_237) |c_~#cache~0.base|) |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|) 0)) is different from false [2024-10-18 16:15:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 4 not checked. [2024-10-18 16:15:18,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109297956] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:15:18,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:15:18,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 7] total 22 [2024-10-18 16:15:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815898488] [2024-10-18 16:15:18,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:15:18,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-18 16:15:18,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:15:18,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-18 16:15:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=325, Unknown=5, NotChecked=78, Total=506 [2024-10-18 16:15:18,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:18,565 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:15:18,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.739130434782608) internal successors, (109), 22 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) [2024-10-18 16:15:18,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:18,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:18,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:18,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:18,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:15:24,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:15:24,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-18 16:15:25,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:25,167 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:15:25,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:15:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1456962141, now seen corresponding path program 1 times [2024-10-18 16:15:25,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:15:25,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901850817] [2024-10-18 16:15:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:15:25,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:15:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:15:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-18 16:15:25,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:15:25,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901850817] [2024-10-18 16:15:25,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901850817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:15:25,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318318524] [2024-10-18 16:15:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:15:25,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:25,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:15:25,271 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) [2024-10-18 16:15:25,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-18 16:15:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:15:25,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-18 16:15:25,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:15:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-18 16:15:25,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:15:25,468 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-18 16:15:25,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318318524] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:15:25,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:15:25,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-18 16:15:25,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24661090] [2024-10-18 16:15:25,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:15:25,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-18 16:15:25,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:15:25,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-18 16:15:25,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-18 16:15:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:25,582 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:15:25,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 16:15:25,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:25,582 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:25,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:25,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:15:25,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:15:25,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:15:25,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:15:25,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 16:15:25,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-18 16:15:26,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:26,022 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:15:26,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:15:26,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1652070412, now seen corresponding path program 2 times [2024-10-18 16:15:26,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:15:26,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530470824] [2024-10-18 16:15:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:15:26,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:15:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:15:26,597 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:15:26,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:15:26,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530470824] [2024-10-18 16:15:26,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530470824] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:15:26,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294831527] [2024-10-18 16:15:26,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 16:15:26,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:26,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:15:26,600 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 16:15:26,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-18 16:15:26,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 16:15:26,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 16:15:26,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-18 16:15:26,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:15:26,732 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 [2024-10-18 16:15:26,793 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 16:15:26,793 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 [2024-10-18 16:15:26,813 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 [2024-10-18 16:15:26,926 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 22 treesize of output 17 [2024-10-18 16:15:27,005 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 31 treesize of output 22 [2024-10-18 16:15:27,054 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 22 treesize of output 15 [2024-10-18 16:15:29,526 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 38 treesize of output 30 [2024-10-18 16:15:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:15:29,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:15:40,625 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| Int)) (or (= 0 (select (select |c_#memory_int| |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36|)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:15:42,142 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| Int) (v_ArrVal_511 (Array Int Int))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_511) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:15:43,633 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| Int) (v_ArrVal_511 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (let ((.cse0 (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|))) (store .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ (- 1) (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_511) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:15:45,419 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_508 Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| Int) (v_ArrVal_511 (Array Int Int))) (or (= (select (select (store (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ v_ArrVal_508 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_511) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:15:47,473 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_508 Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| Int) (v_ArrVal_511 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_38| Int)) (or (= (select (select (store (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_38| (+ v_ArrVal_508 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_511) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| (+ |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_38| 28)))) is different from false [2024-10-18 16:15:49,507 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_507 (Array Int Int)) (v_ArrVal_508 Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| Int) (v_ArrVal_511 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_38| Int)) (or (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36| (+ |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_38| 28)) (= (select (select (store (store |c_#memory_int| |c_~#cache~0.base| (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_507) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_38| (+ v_ArrVal_508 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_511) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_36|) 0))) is different from false [2024-10-18 16:15:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 7 not checked. [2024-10-18 16:15:49,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294831527] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:15:49,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:15:49,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 26 [2024-10-18 16:15:49,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086431115] [2024-10-18 16:15:49,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:15:49,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-18 16:15:49,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:15:49,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-18 16:15:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=326, Unknown=14, NotChecked=258, Total=702 [2024-10-18 16:15:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:49,737 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:15:49,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.8518518518518516) internal successors, (104), 26 states have internal predecessors, (104), 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) [2024-10-18 16:15:49,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:49,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:49,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:49,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:15:49,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:15:49,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-18 16:15:49,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:15:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:15:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:15:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:15:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:15:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:15:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 16:15:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-18 16:15:56,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-18 16:15:56,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-18 16:15:56,577 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:15:56,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:15:56,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1136682792, now seen corresponding path program 3 times [2024-10-18 16:15:56,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:15:56,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439873674] [2024-10-18 16:15:56,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:15:56,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:15:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 16:15:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:15:58,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 16:15:58,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439873674] [2024-10-18 16:15:58,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439873674] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 16:15:58,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832777257] [2024-10-18 16:15:58,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 16:15:58,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:15:58,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 16:15:58,062 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) [2024-10-18 16:15:58,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-18 16:15:58,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-18 16:15:58,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 16:15:58,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-18 16:15:58,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 16:15:58,214 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 [2024-10-18 16:15:58,276 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-18 16:15:58,277 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 [2024-10-18 16:15:58,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2024-10-18 16:15:58,420 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 22 treesize of output 17 [2024-10-18 16:15:58,483 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 31 treesize of output 22 [2024-10-18 16:16:01,212 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 29 treesize of output 22 [2024-10-18 16:16:04,659 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 72 treesize of output 57 [2024-10-18 16:16:11,251 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 70 treesize of output 57 [2024-10-18 16:16:32,280 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 76 treesize of output 62 [2024-10-18 16:16:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-18 16:16:32,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 16:16:56,538 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int)) (or (= (select (select |c_#memory_int| |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:16:58,602 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int)) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:17:00,618 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int)) (or (= (select (select (store (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (let ((.cse0 (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|))) (store .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ (- 1) (select .cse0 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:17:02,664 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_643 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int)) (or (= (select (select (store (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ v_ArrVal_643 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 28) 28 |c_~#cache~0.offset|)))) is different from false [2024-10-18 16:17:04,760 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_643 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int)) (let ((.cse0 (* |c_t_funThread1of1ForFork0_~i~0#1| 28))) (or (= (select (select (store (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| (+ v_ArrVal_643 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ .cse0 28 |c_~#cache~0.offset|)) (< (+ .cse0 |c_~#cache~0.offset|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44|)))) is different from false [2024-10-18 16:17:04,817 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_t_funThread1of1ForFork0_~i~0#1_33| Int)) (or (< |v_t_funThread1of1ForFork0_~i~0#1_33| (+ |c_t_funThread1of1ForFork0_~i~0#1| 1)) (forall ((v_ArrVal_643 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int)) (let ((.cse0 (* |v_t_funThread1of1ForFork0_~i~0#1_33| 28))) (or (= (select (select (store (store |c_#memory_int| |c_~#cache~0.base| (store (select |c_#memory_int| |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| (+ v_ArrVal_643 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< (+ |c_~#cache~0.offset| .cse0) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44|) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ 28 |c_~#cache~0.offset| .cse0))))))) is different from false [2024-10-18 16:17:07,019 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_643 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int) (|v_t_funThread1of1ForFork0_~i~0#1_33| Int)) (let ((.cse0 (* |v_t_funThread1of1ForFork0_~i~0#1_33| 28))) (or (< (+ |c_~#cache~0.offset| .cse0) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44|) (< |v_t_funThread1of1ForFork0_~i~0#1_33| (+ |c_t_funThread1of1ForFork0_~i~0#1| 1)) (= (select (select (store (let ((.cse1 (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (let ((.cse2 (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|))) (store .cse2 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ (- 1) (select .cse2 |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset|))))))) (store .cse1 |c_~#cache~0.base| (store (select .cse1 |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| (+ v_ArrVal_643 (- 1))))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ 28 |c_~#cache~0.offset| .cse0))))) is different from false [2024-10-18 16:17:09,119 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_643 Int) (v_ArrVal_641 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int) (|v_t_funThread1of1ForFork0_~i~0#1_33| Int)) (let ((.cse1 (* |v_t_funThread1of1ForFork0_~i~0#1_33| 28))) (or (= (select (select (store (let ((.cse0 (store |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| (store (select |c_#memory_int| |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base|) |c_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| (+ v_ArrVal_641 (- 1)))))) (store .cse0 |c_~#cache~0.base| (store (select .cse0 |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| (+ v_ArrVal_643 (- 1))))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0) (< (+ |c_~#cache~0.offset| .cse1) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44|) (< |v_t_funThread1of1ForFork0_~i~0#1_33| (+ |c_t_funThread1of1ForFork0_~i~0#1| 1)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ 28 |c_~#cache~0.offset| .cse1))))) is different from false [2024-10-18 16:17:11,287 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_643 Int) (v_ArrVal_641 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_46| Int)) (or (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| 28)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ 56 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_46|)) (= (select (select (store (store |c_#memory_int| |c_~#cache~0.base| (store (store (select |c_#memory_int| |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_46| (+ v_ArrVal_641 (- 1))) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| (+ v_ArrVal_643 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0))) is different from false [2024-10-18 16:17:13,342 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_643 Int) (v_ArrVal_641 Int) (v_ArrVal_646 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| Int) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| Int) (v_ArrVal_639 (Array Int Int)) (|v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_46| Int)) (or (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| 28)) (< |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42| (+ 56 |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_46|)) (= (select (select (store (store |c_#memory_int| |c_~#cache~0.base| (store (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_639) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_46| (+ v_ArrVal_641 (- 1))) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_44| (+ v_ArrVal_643 (- 1)))) |c_ULTIMATE.start_main_~#t_ids~0#1.base| v_ArrVal_646) |c_~#cache~0.base|) |v_t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset_42|) 0))) is different from false [2024-10-18 16:17:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 32 not checked. [2024-10-18 16:17:13,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832777257] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 16:17:13,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 16:17:13,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 15] total 38 [2024-10-18 16:17:13,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754923826] [2024-10-18 16:17:13,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 16:17:13,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-18 16:17:13,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 16:17:13,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-18 16:17:13,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=629, Unknown=39, NotChecked=630, Total=1482 [2024-10-18 16:17:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:17:13,786 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 16:17:13,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.17948717948718) internal successors, (163), 38 states have internal predecessors, (163), 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) [2024-10-18 16:17:13,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:17:13,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:17:13,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:17:13,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:17:13,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:17:13,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-18 16:17:13,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-18 16:17:13,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 16:17:15,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:17,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:23,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:25,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:27,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:33,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:35,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:37,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:39,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:56,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:17:58,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:18:00,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:18:02,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 16:18:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-18 16:18:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-18 16:18:18,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-18 16:18:18,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 16:18:18,786 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 16:18:18,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 16:18:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash -514855942, now seen corresponding path program 4 times [2024-10-18 16:18:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 16:18:18,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325146985] [2024-10-18 16:18:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 16:18:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 16:18:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat