./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -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/pthread-complex/workstealqueue_mutex-2.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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -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 [2024-10-17 21:49:29,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 21:49:29,977 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 21:49:29,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 21:49:29,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 21:49:30,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 21:49:30,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 21:49:30,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 21:49:30,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 21:49:30,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 21:49:30,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 21:49:30,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 21:49:30,019 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 21:49:30,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 21:49:30,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 21:49:30,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 21:49:30,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 21:49:30,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 21:49:30,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 21:49:30,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 21:49:30,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 21:49:30,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 21:49:30,026 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 21:49:30,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 21:49:30,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 21:49:30,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 21:49:30,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 21:49:30,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 21:49:30,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 21:49:30,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 21:49:30,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 21:49:30,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 21:49:30,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 21:49:30,029 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 21:49:30,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 21:49:30,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 21:49:30,029 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 21:49:30,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 21:49:30,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 21:49:30,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 21:49:30,030 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 21:49:30,031 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 -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f 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 -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 21:49:30,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 21:49:30,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 21:49:30,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 21:49:30,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 21:49:30,330 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 21:49:30,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2024-10-17 21:49:31,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 21:49:32,111 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 21:49:32,111 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2024-10-17 21:49:32,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/da077bebd/9ca3e6e505ed4380abaed71a0c4f04d1/FLAG3acee0475 [2024-10-17 21:49:32,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/da077bebd/9ca3e6e505ed4380abaed71a0c4f04d1 [2024-10-17 21:49:32,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 21:49:32,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 21:49:32,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 21:49:32,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 21:49:32,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 21:49:32,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 09:49:32" (1/1) ... [2024-10-17 21:49:32,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea33f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:32, skipping insertion in model container [2024-10-17 21:49:32,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 09:49:32" (1/1) ... [2024-10-17 21:49:32,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 21:49:32,757 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2024-10-17 21:49:32,789 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2024-10-17 21:49:32,795 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2024-10-17 21:49:32,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 21:49:32,826 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 21:49:32,875 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2024-10-17 21:49:32,911 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2024-10-17 21:49:32,915 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2024-10-17 21:49:32,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 21:49:33,042 INFO L204 MainTranslator]: Completed translation [2024-10-17 21:49:33,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33 WrapperNode [2024-10-17 21:49:33,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 21:49:33,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 21:49:33,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 21:49:33,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 21:49:33,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,194 INFO L138 Inliner]: procedures = 490, calls = 130, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1856 [2024-10-17 21:49:33,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 21:49:33,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 21:49:33,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 21:49:33,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 21:49:33,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 21:49:33,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 21:49:33,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 21:49:33,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 21:49:33,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (1/1) ... [2024-10-17 21:49:33,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 21:49:33,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:49:33,382 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) [2024-10-17 21:49:33,384 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 [2024-10-17 21:49:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2024-10-17 21:49:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2024-10-17 21:49:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-17 21:49:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-17 21:49:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-17 21:49:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 21:49:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 21:49:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 21:49:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-17 21:49:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 21:49:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 21:49:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-17 21:49:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-17 21:49:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 21:49:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 21:49:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 21:49:33,457 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 21:49:33,713 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 21:49:33,714 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 21:49:35,625 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 21:49:35,625 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 21:49:36,871 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 21:49:36,871 INFO L314 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-17 21:49:36,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 09:49:36 BoogieIcfgContainer [2024-10-17 21:49:36,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 21:49:36,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 21:49:36,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 21:49:36,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 21:49:36,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 09:49:32" (1/3) ... [2024-10-17 21:49:36,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669d2171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 09:49:36, skipping insertion in model container [2024-10-17 21:49:36,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 09:49:33" (2/3) ... [2024-10-17 21:49:36,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669d2171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 09:49:36, skipping insertion in model container [2024-10-17 21:49:36,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 09:49:36" (3/3) ... [2024-10-17 21:49:36,884 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2024-10-17 21:49:36,903 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 21:49:36,904 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-17 21:49:36,904 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 21:49:37,037 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-17 21:49:37,093 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 21:49:37,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 21:49:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:49:37,096 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) [2024-10-17 21:49:37,098 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 [2024-10-17 21:49:37,258 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 21:49:37,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:49:37,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 21:49:37,287 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;@351d90f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 21:49:37,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-17 21:49:48,231 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:49:48,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:49:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1848872037, now seen corresponding path program 1 times [2024-10-17 21:49:48,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:49:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566928248] [2024-10-17 21:49:48,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:49:48,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:49:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:49:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 21:49:48,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:49:48,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566928248] [2024-10-17 21:49:48,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566928248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:49:48,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:49:48,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 21:49:48,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050333863] [2024-10-17 21:49:48,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:49:48,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 21:49:48,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:49:48,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 21:49:48,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 21:49:48,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:49:48,821 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:49:48,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:49:48,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:49:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:49:48,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 21:49:48,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:49:48,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:49:48,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1040868374, now seen corresponding path program 1 times [2024-10-17 21:49:48,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:49:48,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066288546] [2024-10-17 21:49:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:49:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:49:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:49:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 21:49:49,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:49:49,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066288546] [2024-10-17 21:49:49,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066288546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 21:49:49,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000119534] [2024-10-17 21:49:49,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:49:49,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:49:49,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:49:49,182 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) [2024-10-17 21:49:49,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 21:49:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:49:49,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 21:49:49,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 21:49:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 21:49:49,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 21:49:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 21:49:49,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000119534] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 21:49:49,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 21:49:49,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-17 21:49:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702006655] [2024-10-17 21:49:49,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 21:49:49,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 21:49:49,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:49:49,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 21:49:49,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 21:49:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:49:49,503 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:49:49,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:49:49,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:49:49,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:49:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:49:54,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:49:54,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 21:49:54,744 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 [2024-10-17 21:49:54,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:49:54,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:49:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1442694565, now seen corresponding path program 2 times [2024-10-17 21:49:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:49:54,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839754292] [2024-10-17 21:49:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:49:54,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:49:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 21:49:55,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 21:49:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 21:49:55,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-17 21:49:55,273 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 21:49:55,274 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-17 21:49:55,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-10-17 21:49:55,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-10-17 21:49:55,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-10-17 21:49:55,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-10-17 21:49:55,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-10-17 21:49:55,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-17 21:49:55,289 INFO L414 BasicCegarLoop]: Path program histogram: [2, 1] [2024-10-17 21:49:55,291 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-17 21:49:55,292 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-17 21:49:55,375 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-17 21:49:55,384 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 21:49:55,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 21:49:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:49:55,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 21:49:55,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-10-17 21:49:55,539 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 21:49:55,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:49:55,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 21:49:55,540 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;@351d90f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 21:49:55,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-17 21:50:18,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:50:18,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash 745668390, now seen corresponding path program 1 times [2024-10-17 21:50:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:18,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234444446] [2024-10-17 21:50:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:18,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 21:50:19,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:19,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234444446] [2024-10-17 21:50:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234444446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:19,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 21:50:19,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 21:50:19,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442086820] [2024-10-17 21:50:19,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:19,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 21:50:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:19,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 21:50:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 21:50:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:19,062 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:19,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:19,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:19,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:50:19,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-17 21:50:19,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:50:19,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1075921518, now seen corresponding path program 1 times [2024-10-17 21:50:19,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:19,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674286466] [2024-10-17 21:50:19,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:19,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 21:50:19,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674286466] [2024-10-17 21:50:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674286466] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 21:50:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687411904] [2024-10-17 21:50:19,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:19,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:50:19,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:50:19,475 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) [2024-10-17 21:50:19,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 21:50:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:19,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 21:50:19,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 21:50:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 21:50:19,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 21:50:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 21:50:19,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687411904] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 21:50:19,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 21:50:19,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-17 21:50:19,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296480661] [2024-10-17 21:50:19,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 21:50:19,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 21:50:19,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:19,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 21:50:19,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-17 21:50:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:19,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:19,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:19,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:50:19,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:50:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:50:29,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-17 21:50:29,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:50:29,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:50:29,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:29,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1070371110, now seen corresponding path program 2 times [2024-10-17 21:50:29,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136502836] [2024-10-17 21:50:29,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:29,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-17 21:50:30,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:30,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136502836] [2024-10-17 21:50:30,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136502836] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 21:50:30,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399498025] [2024-10-17 21:50:30,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 21:50:30,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:50:30,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:50:30,300 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) [2024-10-17 21:50:30,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 21:50:30,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 21:50:30,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 21:50:30,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 21:50:30,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 21:50:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-17 21:50:30,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 21:50:30,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399498025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:30,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 21:50:30,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-10-17 21:50:30,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000215682] [2024-10-17 21:50:30,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:30,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 21:50:30,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:30,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 21:50:30,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-17 21:50:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:30,833 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:30,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-10-17 21:50:30,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:50:30,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:50:30,834 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:50:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:50:32,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:32,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-17 21:50:32,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-17 21:50:32,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:50:32,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:50:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash -10889819, now seen corresponding path program 1 times [2024-10-17 21:50:32,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:50:32,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894460364] [2024-10-17 21:50:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:32,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:50:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-17 21:50:32,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:50:32,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894460364] [2024-10-17 21:50:32,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894460364] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 21:50:32,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636401478] [2024-10-17 21:50:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:50:32,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:50:32,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:50:32,926 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) [2024-10-17 21:50:32,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 21:50:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:50:33,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-17 21:50:33,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 21:50:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-17 21:50:33,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 21:50:33,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636401478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:50:33,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 21:50:33,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-10-17 21:50:33,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096441964] [2024-10-17 21:50:33,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:50:33,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 21:50:33,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:50:33,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 21:50:33,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-17 21:50:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:50:33,376 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:50:33,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 21:50:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:50:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:50:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:50:33,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:52:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:52:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:52:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:01,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:52:01,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 21:52:01,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:52:01,430 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:52:01,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:52:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash -459887860, now seen corresponding path program 1 times [2024-10-17 21:52:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:52:01,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532504549] [2024-10-17 21:52:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:52:01,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:52:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:52:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 124 proven. 1 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-10-17 21:52:02,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:52:02,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532504549] [2024-10-17 21:52:02,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532504549] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 21:52:02,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580287773] [2024-10-17 21:52:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:52:02,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:52:02,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:52:02,228 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) [2024-10-17 21:52:02,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 21:52:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:52:03,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 4996 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 21:52:03,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 21:52:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-10-17 21:52:03,526 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 21:52:03,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580287773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 21:52:03,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 21:52:03,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-10-17 21:52:03,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266426318] [2024-10-17 21:52:03,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 21:52:03,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 21:52:03,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 21:52:03,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 21:52:03,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-17 21:52:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:52:03,529 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 21:52:03,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-10-17 21:52:03,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:52:03,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:52:03,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:03,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:52:03,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 21:52:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 21:52:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 21:52:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 21:52:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 21:52:03,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-17 21:52:04,170 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,SelfDestructingSolverStorable7 [2024-10-17 21:52:04,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-17 21:52:04,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 21:52:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1138842340, now seen corresponding path program 2 times [2024-10-17 21:52:04,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 21:52:04,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367347898] [2024-10-17 21:52:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 21:52:04,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 21:52:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 21:52:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 38 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-17 21:52:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 21:52:46,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367347898] [2024-10-17 21:52:46,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367347898] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 21:52:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945726555] [2024-10-17 21:52:46,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 21:52:46,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 21:52:46,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 21:52:46,264 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) [2024-10-17 21:52:46,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-17 21:52:48,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 21:52:48,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 21:52:48,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 2820 conjuncts, 910 conjuncts are in the unsatisfiable core [2024-10-17 21:52:48,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 21:52:48,399 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-10-17 21:52:48,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-10-17 21:52:48,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-17 21:52:48,669 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 19 treesize of output 18 [2024-10-17 21:52:48,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-10-17 21:52:48,896 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 30 treesize of output 21 [2024-10-17 21:52:48,920 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 30 treesize of output 21 [2024-10-17 21:52:48,954 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 30 treesize of output 21 [2024-10-17 21:52:48,983 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 30 treesize of output 21 [2024-10-17 21:52:49,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-10-17 21:52:49,188 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2024-10-17 21:52:49,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2024-10-17 21:52:49,468 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-10-17 21:52:49,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-10-17 21:52:49,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2024-10-17 21:52:49,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2024-10-17 21:52:50,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-10-17 21:52:50,313 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2024-10-17 21:52:50,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2024-10-17 21:52:50,660 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-10-17 21:52:50,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 51 [2024-10-17 21:52:50,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-10-17 21:52:51,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 41 [2024-10-17 21:52:51,829 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-17 21:52:51,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 35 [2024-10-17 21:52:51,999 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2024-10-17 21:52:52,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2024-10-17 21:52:52,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2024-10-17 21:52:52,377 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-10-17 21:52:52,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-10-17 21:52:52,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2024-10-17 21:52:52,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2024-10-17 21:52:52,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-10-17 21:52:53,089 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-10-17 21:52:53,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-10-17 21:52:53,350 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-10-17 21:52:53,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 41 [2024-10-17 21:52:53,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2024-10-17 21:52:54,015 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-10-17 21:52:54,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2024-10-17 21:52:54,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2024-10-17 21:52:54,797 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-10-17 21:52:54,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2024-10-17 21:52:55,107 INFO L349 Elim1Store]: treesize reduction 135, result has 10.0 percent of original size [2024-10-17 21:52:55,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 116 treesize of output 172 [2024-10-17 21:52:55,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 75 [2024-10-17 21:52:55,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 69 [2024-10-17 21:52:55,216 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-10-17 21:52:55,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 48 [2024-10-17 21:52:55,236 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-17 21:52:55,236 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 7 [2024-10-17 21:52:55,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-10-17 21:52:55,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-10-17 21:52:56,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2024-10-17 21:52:56,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-17 21:52:56,179 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2024-10-17 21:52:56,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 40 [2024-10-17 21:52:57,680 INFO L349 Elim1Store]: treesize reduction 847, result has 13.6 percent of original size [2024-10-17 21:52:57,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 88 case distinctions, treesize of input 882 treesize of output 961 [2024-10-17 21:52:57,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:57,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 442 treesize of output 461 [2024-10-17 21:52:57,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 436 treesize of output 432 [2024-10-17 21:52:57,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 21:52:57,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 432 treesize of output 451 [2024-10-17 21:52:57,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 426 treesize of output 422 [2024-10-17 21:52:57,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-17 21:52:57,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 75 [2024-10-17 21:52:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-17 21:52:57,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 69 [2024-10-17 21:56:02,693 WARN L286 SmtUtils]: Spent 39.64s on a formula simplification. DAG size of input: 763 DAG size of output: 1007 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 21:56:22,161 WARN L286 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 755 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 21:56:32,385 WARN L286 SmtUtils]: Spent 10.21s on a formula simplification that was a NOOP. DAG size: 1150 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 21:57:37,500 WARN L286 SmtUtils]: Spent 9.80s on a formula simplification that was a NOOP. DAG size: 755 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 21:58:00,669 WARN L286 SmtUtils]: Spent 23.17s on a formula simplification. DAG size of input: 758 DAG size of output: 823 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 21:58:50,896 WARN L286 SmtUtils]: Spent 10.35s on a formula simplification that was a NOOP. DAG size: 1149 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 22:01:42,764 WARN L286 SmtUtils]: Spent 51.27s on a formula simplification that was a NOOP. DAG size: 2119 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15