./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 01:10:06,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 01:10:06,125 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 01:10:06,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 01:10:06,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 01:10:06,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 01:10:06,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 01:10:06,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 01:10:06,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 01:10:06,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 01:10:06,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 01:10:06,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 01:10:06,150 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 01:10:06,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 01:10:06,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 01:10:06,150 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 01:10:06,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 01:10:06,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 01:10:06,151 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 01:10:06,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 01:10:06,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 01:10:06,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 01:10:06,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 01:10:06,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 01:10:06,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 01:10:06,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-jdk21/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 -> 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-23 01:10:06,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 01:10:06,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 01:10:06,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 01:10:06,393 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 01:10:06,393 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 01:10:06,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2025-01-23 01:10:07,558 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/350f130f0/9c88bc56157546eaa6732d35e45ea0e3/FLAGac30370bf [2025-01-23 01:10:07,767 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 01:10:07,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2025-01-23 01:10:07,781 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/350f130f0/9c88bc56157546eaa6732d35e45ea0e3/FLAGac30370bf [2025-01-23 01:10:07,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/350f130f0/9c88bc56157546eaa6732d35e45ea0e3 [2025-01-23 01:10:07,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 01:10:07,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 01:10:07,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 01:10:07,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 01:10:07,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 01:10:07,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 01:10:07" (1/1) ... [2025-01-23 01:10:07,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1deae70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:07, skipping insertion in model container [2025-01-23 01:10:07,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 01:10:07" (1/1) ... [2025-01-23 01:10:07,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 01:10:08,048 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30535,30548] [2025-01-23 01:10:08,057 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30687,30700] [2025-01-23 01:10:08,064 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31414,31427] [2025-01-23 01:10:08,066 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31599,31612] [2025-01-23 01:10:08,069 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31752,31765] [2025-01-23 01:10:08,075 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32141,32154] [2025-01-23 01:10:08,078 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32327,32340] [2025-01-23 01:10:08,080 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32488,32501] [2025-01-23 01:10:08,081 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32646,32659] [2025-01-23 01:10:08,083 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32802,32815] [2025-01-23 01:10:08,086 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[33149,33162] [2025-01-23 01:10:08,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 01:10:08,108 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 01:10:08,180 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30535,30548] [2025-01-23 01:10:08,181 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[30687,30700] [2025-01-23 01:10:08,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31414,31427] [2025-01-23 01:10:08,186 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31599,31612] [2025-01-23 01:10:08,186 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[31752,31765] [2025-01-23 01:10:08,191 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32141,32154] [2025-01-23 01:10:08,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32327,32340] [2025-01-23 01:10:08,195 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32488,32501] [2025-01-23 01:10:08,196 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32646,32659] [2025-01-23 01:10:08,198 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[32802,32815] [2025-01-23 01:10:08,199 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i[33149,33162] [2025-01-23 01:10:08,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 01:10:08,240 INFO L204 MainTranslator]: Completed translation [2025-01-23 01:10:08,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08 WrapperNode [2025-01-23 01:10:08,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 01:10:08,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 01:10:08,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 01:10:08,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 01:10:08,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,291 INFO L138 Inliner]: procedures = 173, calls = 51, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 446 [2025-01-23 01:10:08,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 01:10:08,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 01:10:08,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 01:10:08,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 01:10:08,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,316 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 01:10:08,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 01:10:08,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 01:10:08,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 01:10:08,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (1/1) ... [2025-01-23 01:10:08,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 01:10:08,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 01:10:08,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 01:10:08,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 01:10:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-23 01:10:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-23 01:10:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-23 01:10:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 01:10:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 01:10:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-23 01:10:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 01:10:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 01:10:08,379 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 01:10:08,482 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 01:10:08,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 01:10:08,863 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 01:10:08,865 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 01:10:09,256 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 01:10:09,258 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-23 01:10:09,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 01:10:09 BoogieIcfgContainer [2025-01-23 01:10:09,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 01:10:09,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 01:10:09,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 01:10:09,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 01:10:09,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 01:10:07" (1/3) ... [2025-01-23 01:10:09,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559400cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 01:10:09, skipping insertion in model container [2025-01-23 01:10:09,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 01:10:08" (2/3) ... [2025-01-23 01:10:09,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559400cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 01:10:09, skipping insertion in model container [2025-01-23 01:10:09,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 01:10:09" (3/3) ... [2025-01-23 01:10:09,266 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2025-01-23 01:10:09,277 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 01:10:09,278 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_NetBSD_sysmon_power_sliced-pthread.i that has 2 procedures, 128 locations, 1 initial locations, 4 loop locations, and 11 error locations. [2025-01-23 01:10:09,279 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 01:10:09,357 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-23 01:10:09,394 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:09,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 01:10:09,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 01:10:09,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 01:10:09,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 01:10:09,475 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 01:10:09,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2025-01-23 01:10:09,491 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;@653fb2df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:09,491 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-01-23 01:10:09,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2025-01-23 01:10:09,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2127430683, now seen corresponding path program 1 times [2025-01-23 01:10:09,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:09,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153509858] [2025-01-23 01:10:09,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:09,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:09,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-23 01:10:09,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-23 01:10:09,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:09,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 01:10:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 01:10:09,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 01:10:09,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153509858] [2025-01-23 01:10:09,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153509858] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 01:10:09,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 01:10:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 01:10:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58947614] [2025-01-23 01:10:09,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 01:10:09,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 01:10:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 01:10:10,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 01:10:10,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 01:10:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:10,007 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 01:10:10,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 01:10:10,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:10,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 01:10:10,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err5ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2025-01-23 01:10:10,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1281140470, now seen corresponding path program 1 times [2025-01-23 01:10:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:10,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497674190] [2025-01-23 01:10:10,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:10,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-23 01:10:10,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 01:10:10,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:10,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 01:10:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 01:10:10,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 01:10:10,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497674190] [2025-01-23 01:10:10,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497674190] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 01:10:10,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 01:10:10,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 01:10:10,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415868402] [2025-01-23 01:10:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 01:10:10,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 01:10:10,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 01:10:10,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 01:10:10,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 01:10:10,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:10,272 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 01:10:10,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 01:10:10,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:10,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2025-01-23 01:10:12,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2025-01-23 01:10:12,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 01:10:12,179 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-23 01:10:12,181 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2025-01-23 01:10:12,184 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:12,188 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 01:10:12,188 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 01:10:12,188 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;@653fb2df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:12,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 01:10:12,191 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 01:10:12,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1229589510, now seen corresponding path program 1 times [2025-01-23 01:10:12,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:12,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594995106] [2025-01-23 01:10:12,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:12,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-23 01:10:12,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-23 01:10:12,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:12,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 01:10:12,276 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-23 01:10:12,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-23 01:10:12,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-23 01:10:12,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:12,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 01:10:12,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-23 01:10:12,313 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-23 01:10:12,313 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-01-23 01:10:12,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 01:10:12,318 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-23 01:10:12,318 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2025-01-23 01:10:12,318 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-23 01:10:12,319 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-23 01:10:12,367 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-23 01:10:12,370 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:12,387 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 01:10:12,387 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 01:10:12,388 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;@653fb2df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:12,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 01:10:12,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 01:10:12,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:12,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1660309745, now seen corresponding path program 1 times [2025-01-23 01:10:12,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:12,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602290811] [2025-01-23 01:10:12,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:12,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:12,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-23 01:10:12,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-23 01:10:12,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:12,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 01:10:12,635 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-23 01:10:12,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-23 01:10:12,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-23 01:10:12,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:12,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 01:10:12,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-23 01:10:12,652 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-23 01:10:12,652 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-01-23 01:10:12,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 01:10:12,653 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-23 01:10:12,653 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2025-01-23 01:10:12,653 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-23 01:10:12,654 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-23 01:10:12,702 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-23 01:10:12,707 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:12,727 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 01:10:12,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2025-01-23 01:10:12,729 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;@653fb2df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 01:10:12,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2025-01-23 01:10:12,931 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2025-01-23 01:10:12,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 367236233, now seen corresponding path program 1 times [2025-01-23 01:10:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001287959] [2025-01-23 01:10:12,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:13,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-23 01:10:13,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 01:10:13,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:13,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 01:10:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 01:10:13,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 01:10:13,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001287959] [2025-01-23 01:10:13,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001287959] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 01:10:13,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 01:10:13,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 01:10:13,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391317870] [2025-01-23 01:10:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 01:10:13,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-23 01:10:13,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 01:10:13,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-23 01:10:13,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-23 01:10:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:13,039 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 01:10:13,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 01:10:13,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:13,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:13,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-23 01:10:13,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err5ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2025-01-23 01:10:13,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 35151800, now seen corresponding path program 1 times [2025-01-23 01:10:13,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:13,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866467984] [2025-01-23 01:10:13,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:13,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:13,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-23 01:10:13,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-23 01:10:13,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:13,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 01:10:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 01:10:13,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 01:10:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866467984] [2025-01-23 01:10:13,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866467984] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 01:10:13,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 01:10:13,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 01:10:13,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46031426] [2025-01-23 01:10:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 01:10:13,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 01:10:13,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 01:10:13,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 01:10:13,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 01:10:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:13,900 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 01:10:13,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 01:10:13,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:13,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 01:10:17,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-23 01:10:17,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err5ASSERT_VIOLATIONERROR_FUNCTION, thr1Err2ASSERT_VIOLATIONERROR_FUNCTION, thr1Err6ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2025-01-23 01:10:17,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 01:10:17,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1292339464, now seen corresponding path program 1 times [2025-01-23 01:10:17,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 01:10:17,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867965786] [2025-01-23 01:10:17,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 01:10:17,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 01:10:17,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-23 01:10:17,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-23 01:10:17,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 01:10:17,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 01:10:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 01:10:17,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 01:10:17,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867965786] [2025-01-23 01:10:17,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867965786] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 01:10:17,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 01:10:17,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 01:10:17,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934129077] [2025-01-23 01:10:17,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 01:10:17,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 01:10:17,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 01:10:17,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 01:10:17,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 01:10:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:17,875 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 01:10:17,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 01:10:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 01:10:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 01:10:17,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.