./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 18:22:29,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 18:22:29,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 18:22:29,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 18:22:29,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 18:22:29,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 18:22:29,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 18:22:29,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 18:22:29,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 18:22:29,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 18:22:29,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 18:22:29,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 18:22:29,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 18:22:29,208 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 18:22:29,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 18:22:29,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 18:22:29,209 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 18:22:29,209 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/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 -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-03-19 18:22:29,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 18:22:29,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 18:22:29,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 18:22:29,475 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 18:22:29,475 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 18:22:29,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-03-19 18:22:30,727 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1998295a1/9c04572a5e3a4ecf99a6b7b5c72d82e5/FLAG9018f0e2c [2025-03-19 18:22:30,972 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 18:22:30,973 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-03-19 18:22:30,987 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1998295a1/9c04572a5e3a4ecf99a6b7b5c72d82e5/FLAG9018f0e2c [2025-03-19 18:22:31,778 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1998295a1/9c04572a5e3a4ecf99a6b7b5c72d82e5 [2025-03-19 18:22:31,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 18:22:31,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 18:22:31,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 18:22:31,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 18:22:31,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 18:22:31,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 06:22:31" (1/1) ... [2025-03-19 18:22:31,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a53d1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:31, skipping insertion in model container [2025-03-19 18:22:31,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 06:22:31" (1/1) ... [2025-03-19 18:22:31,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 18:22:31,944 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2025-03-19 18:22:32,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 18:22:32,129 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 18:22:32,143 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2025-03-19 18:22:32,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 18:22:32,248 INFO L204 MainTranslator]: Completed translation [2025-03-19 18:22:32,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32 WrapperNode [2025-03-19 18:22:32,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 18:22:32,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 18:22:32,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 18:22:32,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 18:22:32,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,284 INFO L138 Inliner]: procedures = 364, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2025-03-19 18:22:32,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 18:22:32,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 18:22:32,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 18:22:32,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 18:22:32,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,301 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 18:22:32,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 18:22:32,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 18:22:32,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 18:22:32,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (1/1) ... [2025-03-19 18:22:32,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 18:22:32,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 18:22:32,352 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) [2025-03-19 18:22:32,353 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 [2025-03-19 18:22:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-19 18:22:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-19 18:22:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2025-03-19 18:22:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2025-03-19 18:22:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 18:22:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 18:22:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 18:22:32,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 18:22:32,369 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 18:22:32,462 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 18:22:32,463 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 18:22:32,566 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 18:22:32,566 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 18:22:32,830 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 18:22:32,830 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 18:22:32,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 06:22:32 BoogieIcfgContainer [2025-03-19 18:22:32,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 18:22:32,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 18:22:32,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 18:22:32,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 18:22:32,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 06:22:31" (1/3) ... [2025-03-19 18:22:32,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7285ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 06:22:32, skipping insertion in model container [2025-03-19 18:22:32,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 06:22:32" (2/3) ... [2025-03-19 18:22:32,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7285ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 06:22:32, skipping insertion in model container [2025-03-19 18:22:32,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 06:22:32" (3/3) ... [2025-03-19 18:22:32,839 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2025-03-19 18:22:32,848 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 18:22:32,850 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 20 locations, 21 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-19 18:22:32,850 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 18:22:32,879 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-19 18:22:32,910 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 18:22:32,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 18:22:32,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 18:22:32,913 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) [2025-03-19 18:22:32,915 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 [2025-03-19 18:22:32,969 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 18:22:32,974 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 18:22:32,980 INFO L340 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;@7b3b4293, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 18:22:32,981 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-19 18:22:32,997 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:33,001 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1658562641, now seen corresponding path program 1 times [2025-03-19 18:22:33,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:33,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373534883] [2025-03-19 18:22:33,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 18:22:33,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:33,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-19 18:22:33,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-19 18:22:33,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 18:22:33,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:33,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 18:22:33,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373534883] [2025-03-19 18:22:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373534883] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 18:22:33,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 18:22:33,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 18:22:33,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848785177] [2025-03-19 18:22:33,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 18:22:33,249 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 18:22:33,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 18:22:33,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 18:22:33,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 18:22:33,264 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:33,265 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 18:22:33,265 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 18:22:33,265 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:33,322 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:33,322 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 18:22:33,323 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:33,323 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:33,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1408822025, now seen corresponding path program 1 times [2025-03-19 18:22:33,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:33,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818493965] [2025-03-19 18:22:33,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 18:22:33,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:33,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-19 18:22:33,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-19 18:22:33,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 18:22:33,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:33,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:33,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 18:22:33,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818493965] [2025-03-19 18:22:33,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818493965] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 18:22:33,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40916818] [2025-03-19 18:22:33,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 18:22:33,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 18:22:33,468 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) [2025-03-19 18:22:33,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 18:22:33,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-19 18:22:33,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-19 18:22:33,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 18:22:33,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:33,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-19 18:22:33,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 18:22:33,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:33,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 18:22:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:33,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40916818] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 18:22:33,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 18:22:33,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-19 18:22:33,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524961068] [2025-03-19 18:22:33,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 18:22:33,686 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-19 18:22:33,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 18:22:33,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-19 18:22:33,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-19 18:22:33,687 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:33,687 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 18:22:33,687 INFO L481 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) [2025-03-19 18:22:33,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:33,687 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:33,770 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:33,771 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:33,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-19 18:22:33,971 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-19 18:22:33,972 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:33,972 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2019112681, now seen corresponding path program 2 times [2025-03-19 18:22:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:33,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240696230] [2025-03-19 18:22:33,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 18:22:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:33,992 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-03-19 18:22:34,010 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-03-19 18:22:34,010 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 18:22:34,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:34,163 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:34,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 18:22:34,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240696230] [2025-03-19 18:22:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240696230] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 18:22:34,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43909459] [2025-03-19 18:22:34,163 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 18:22:34,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:34,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 18:22:34,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 18:22:34,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 18:22:34,256 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-03-19 18:22:34,290 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-03-19 18:22:34,290 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 18:22:34,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:34,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-19 18:22:34,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 18:22:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:34,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 18:22:34,519 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:34,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43909459] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 18:22:34,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 18:22:34,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2025-03-19 18:22:34,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569297128] [2025-03-19 18:22:34,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 18:22:34,521 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-19 18:22:34,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 18:22:34,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-19 18:22:34,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2025-03-19 18:22:34,522 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:34,522 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 18:22:34,522 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 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) [2025-03-19 18:22:34,522 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:34,522 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:34,522 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:34,717 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:34,717 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:34,718 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:34,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-19 18:22:34,923 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:34,923 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:34,923 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2057975057, now seen corresponding path program 3 times [2025-03-19 18:22:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:34,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312727356] [2025-03-19 18:22:34,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 18:22:34,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:34,945 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 7 equivalence classes. [2025-03-19 18:22:34,981 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 80 of 85 statements. [2025-03-19 18:22:34,982 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-19 18:22:34,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-19 18:22:35,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 18:22:35,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312727356] [2025-03-19 18:22:35,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312727356] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 18:22:35,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785416512] [2025-03-19 18:22:35,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 18:22:35,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:35,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 18:22:35,136 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) [2025-03-19 18:22:35,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 18:22:35,217 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 7 equivalence classes. [2025-03-19 18:22:35,250 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 80 of 85 statements. [2025-03-19 18:22:35,251 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-19 18:22:35,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:35,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-19 18:22:35,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 18:22:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-19 18:22:35,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 18:22:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-19 18:22:35,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785416512] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 18:22:35,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 18:22:35,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-03-19 18:22:35,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321504588] [2025-03-19 18:22:35,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 18:22:35,416 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-19 18:22:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 18:22:35,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-19 18:22:35,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2025-03-19 18:22:35,418 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:35,418 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 18:22:35,418 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 15 states have internal predecessors, (116), 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) [2025-03-19 18:22:35,418 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:35,420 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:35,420 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:35,420 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:35,522 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:35,522 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:35,522 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:35,522 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 18:22:35,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-19 18:22:35,723 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:35,724 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:35,724 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:35,724 INFO L85 PathProgramCache]: Analyzing trace with hash -940362727, now seen corresponding path program 4 times [2025-03-19 18:22:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:35,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867702928] [2025-03-19 18:22:35,725 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 18:22:35,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:35,739 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 111 statements into 2 equivalence classes. [2025-03-19 18:22:35,775 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-19 18:22:35,775 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 18:22:35,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:36,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 18:22:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867702928] [2025-03-19 18:22:36,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867702928] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 18:22:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507045334] [2025-03-19 18:22:36,009 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 18:22:36,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:36,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 18:22:36,011 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) [2025-03-19 18:22:36,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-19 18:22:36,098 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 111 statements into 2 equivalence classes. [2025-03-19 18:22:36,143 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-19 18:22:36,144 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 18:22:36,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:36,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-19 18:22:36,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 18:22:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:36,249 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 18:22:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:36,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507045334] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 18:22:36,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 18:22:36,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 22 [2025-03-19 18:22:36,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375335667] [2025-03-19 18:22:36,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 18:22:36,483 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-19 18:22:36,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 18:22:36,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-19 18:22:36,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2025-03-19 18:22:36,484 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:36,484 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 18:22:36,484 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 22 states have internal predecessors, (169), 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) [2025-03-19 18:22:36,484 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:36,484 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:36,484 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:36,484 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 18:22:36,484 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:36,628 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:36,628 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:36,628 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:36,628 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 18:22:36,628 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 18:22:36,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-19 18:22:36,829 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 18:22:36,829 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:36,830 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:36,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1660178103, now seen corresponding path program 5 times [2025-03-19 18:22:36,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:36,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290103281] [2025-03-19 18:22:36,832 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 18:22:36,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:36,848 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 175 statements into 21 equivalence classes. [2025-03-19 18:22:36,881 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) and asserted 175 of 175 statements. [2025-03-19 18:22:36,881 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2025-03-19 18:22:36,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 18:22:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 1640 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 18:22:37,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 18:22:37,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290103281] [2025-03-19 18:22:37,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290103281] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 18:22:37,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 18:22:37,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-03-19 18:22:37,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293413954] [2025-03-19 18:22:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 18:22:37,355 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-19 18:22:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 18:22:37,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-19 18:22:37,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-03-19 18:22:37,356 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:37,356 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 18:22:37,356 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 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) [2025-03-19 18:22:37,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:37,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:37,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:37,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 18:22:37,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-03-19 18:22:37,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 18:22:37,534 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 18:22:37,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 18:22:37,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 18:22:37,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 18:22:37,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 18:22:37,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-19 18:22:37,535 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-19 18:22:37,535 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 18:22:37,536 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 18:22:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash -799354900, now seen corresponding path program 6 times [2025-03-19 18:22:37,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 18:22:37,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466932097] [2025-03-19 18:22:37,536 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 18:22:37,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 18:22:37,549 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 170 statements into 21 equivalence classes. [2025-03-19 18:22:37,575 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) and asserted 170 of 170 statements. [2025-03-19 18:22:37,576 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2025-03-19 18:22:37,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-19 18:22:37,576 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-19 18:22:37,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-19 18:22:37,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-19 18:22:37,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 18:22:37,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-19 18:22:37,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-19 18:22:37,663 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-19 18:22:37,663 INFO L791 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-19 18:22:37,665 INFO L791 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-19 18:22:37,665 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-19 18:22:37,668 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1] [2025-03-19 18:22:37,785 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-19 18:22:37,785 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-19 18:22:37,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-03-19 18:22:37,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 06:22:37 BasicIcfg [2025-03-19 18:22:37,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-19 18:22:37,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-19 18:22:37,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-19 18:22:37,797 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-19 18:22:37,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 06:22:32" (3/4) ... [2025-03-19 18:22:37,799 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-19 18:22:37,904 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 47. [2025-03-19 18:22:37,978 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-19 18:22:37,978 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-19 18:22:37,978 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-19 18:22:37,979 INFO L158 Benchmark]: Toolchain (without parser) took 6197.50ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 81.1MB in the beginning and 122.7MB in the end (delta: -41.6MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2025-03-19 18:22:37,979 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.3MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 18:22:37,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.02ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 40.8MB in the end (delta: 40.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-19 18:22:37,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 109.1MB. Free memory was 40.8MB in the beginning and 38.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 18:22:37,980 INFO L158 Benchmark]: Boogie Preprocessor took 24.66ms. Allocated memory is still 109.1MB. Free memory was 38.5MB in the beginning and 37.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 18:22:37,980 INFO L158 Benchmark]: RCFGBuilder took 519.91ms. Allocated memory is still 109.1MB. Free memory was 37.3MB in the beginning and 71.5MB in the end (delta: -34.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2025-03-19 18:22:37,981 INFO L158 Benchmark]: TraceAbstraction took 4964.59ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 71.5MB in the beginning and 149.1MB in the end (delta: -77.6MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2025-03-19 18:22:37,981 INFO L158 Benchmark]: Witness Printer took 180.76ms. Allocated memory is still 192.9MB. Free memory was 149.1MB in the beginning and 122.7MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-19 18:22:37,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.3MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.02ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 40.8MB in the end (delta: 40.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 109.1MB. Free memory was 40.8MB in the beginning and 38.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.66ms. Allocated memory is still 109.1MB. Free memory was 38.5MB in the beginning and 37.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.91ms. Allocated memory is still 109.1MB. Free memory was 37.3MB in the beginning and 71.5MB in the end (delta: -34.2MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4964.59ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 71.5MB in the beginning and 149.1MB in the end (delta: -77.6MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Witness Printer took 180.76ms. Allocated memory is still 192.9MB. Free memory was 149.1MB in the beginning and 122.7MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1350, independent: 827, independent conditional: 827, independent unconditional: 0, dependent: 523, dependent conditional: 523, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 827, independent: 827, independent conditional: 0, independent unconditional: 827, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 827, independent: 804, independent conditional: 0, independent unconditional: 804, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 23, unknown conditional: 0, unknown unconditional: 23] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 523 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\at(arg, Pre)={0:0}, myglobal=0, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, myglobal=0] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, myglobal=0] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, j=0, myglobal=0] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, j=1, myglobal=1] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, i=1, j=1, myglobal=1, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, i=1, j=1, myglobal=2, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, i=1, j=1, myglobal=2, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=1, myglobal=2] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=3, myglobal=3] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, i=2, j=3, myglobal=3, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, i=2, j=3, myglobal=4, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, i=2, j=3, myglobal=4, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=3, myglobal=4] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=4, myglobal=4] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=5, myglobal=5] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=5, myglobal=5] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, i=3, j=5, myglobal=5, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, i=3, j=5, myglobal=6, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, i=3, j=5, myglobal=6, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=5, myglobal=6] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=6, myglobal=6] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=7, myglobal=7] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=7, myglobal=7] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, i=4, j=7, myglobal=7, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, i=4, j=7, myglobal=8, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, i=4, j=7, myglobal=8, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=7, myglobal=8] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=8, myglobal=8] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=9, myglobal=9] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=9, myglobal=9] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, i=5, j=9, myglobal=9, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, i=5, j=9, myglobal=10, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, i=5, j=9, myglobal=10, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=9, myglobal=10] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=10, myglobal=10] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=11, myglobal=11] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=11, myglobal=11] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, i=6, j=11, myglobal=11, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, i=6, j=11, myglobal=12, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, i=6, j=11, myglobal=12, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=11, myglobal=12] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=12, myglobal=12] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=13, myglobal=13] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=13, myglobal=13] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, i=7, j=13, myglobal=13, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, i=7, j=13, myglobal=14, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, i=7, j=13, myglobal=14, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=13, myglobal=14] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=14, myglobal=14] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=15, myglobal=15] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=15, myglobal=15] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, i=8, j=15, myglobal=15, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, i=8, j=15, myglobal=16, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, i=8, j=15, myglobal=16, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=15, myglobal=16] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=16, myglobal=16] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=17, myglobal=17] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=17, myglobal=17] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, i=9, j=17, myglobal=17, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, i=9, j=17, myglobal=18, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, i=9, j=17, myglobal=18, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=17, myglobal=18] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=18, myglobal=18] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=19, myglobal=19] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=19, myglobal=19] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=9, j=19, myglobal=19, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=9, j=19, myglobal=20, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=10, j=19, myglobal=20, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=19, myglobal=20] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=20, myglobal=20] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=21, myglobal=21] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=21, myglobal=21] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=11, j=21, myglobal=21, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=11, j=21, myglobal=22, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, i=11, j=21, myglobal=22, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=21, myglobal=22] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=22, myglobal=22] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=23, myglobal=23] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=23, myglobal=23] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, i=12, j=23, myglobal=23, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, i=12, j=23, myglobal=24, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, i=12, j=23, myglobal=24, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=23, myglobal=24] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=24, myglobal=24] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=25, myglobal=25] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=25, myglobal=25] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, i=13, j=25, myglobal=25, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, i=13, j=25, myglobal=26, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, i=13, j=25, myglobal=26, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=25, myglobal=26] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=26, myglobal=26] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=27, myglobal=27] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=27, myglobal=27] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, i=14, j=27, myglobal=27, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, i=14, j=27, myglobal=28, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, i=14, j=27, myglobal=28, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=27, myglobal=28] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=28, myglobal=28] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=29, myglobal=29] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=29, myglobal=29] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, i=15, j=29, myglobal=29, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, i=15, j=29, myglobal=30, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, i=15, j=29, myglobal=30, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=29, myglobal=30] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=30, myglobal=30] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=31, myglobal=31] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=31, myglobal=31] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, i=16, j=31, myglobal=31, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, i=16, j=31, myglobal=32, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, i=16, j=31, myglobal=32, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=31, myglobal=32] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=32, myglobal=32] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=33, myglobal=33] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=33, myglobal=33] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, i=17, j=33, myglobal=33, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, i=17, j=33, myglobal=34, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, i=17, j=33, myglobal=34, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=33, myglobal=34] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=34, myglobal=34] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=35, myglobal=35] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=35, myglobal=35] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, i=18, j=35, myglobal=35, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, i=18, j=35, myglobal=36, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, i=18, j=35, myglobal=36, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=35, myglobal=36] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=36, myglobal=36] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=37, myglobal=37] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=37, myglobal=37] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, i=19, j=37, myglobal=37, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, i=19, j=37, myglobal=38, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, i=19, j=37, myglobal=38, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=37, myglobal=38] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=38, myglobal=38] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=20, j=39, myglobal=39] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, i=20, j=39, myglobal=39, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, i=20, j=39, myglobal=40, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=20, i=20, j=39, myglobal=40, mythread=-1] [L1325] COND FALSE 1 !(i<20) [L1336] 1 return ((void *)0); [L1352] COND FALSE 0 !(i<20) VAL [\at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=39, myglobal=40, mythread=-1] [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=39, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) VAL [\at(arg, Pre)={0:0}, \at(cond, Pre)=0, \result={0:0}, arg={0:0}, cond=0, i=20, j=39, myglobal=40] [L13] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(cond, Pre)=0, \result={0:0}, arg={0:0}, cond=0, i=20, j=39, myglobal=40] - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 28 locations, 31 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 892 NumberOfCodeBlocks, 882 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 2518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 865 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 1883/4247 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-19 18:22:38,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE