./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/bigshot_s2.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --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/bigshot_s2.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 fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 14:33:25,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 14:33:25,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 14:33:25,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 14:33:25,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 14:33:25,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 14:33:25,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 14:33:25,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 14:33:25,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 14:33:25,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 14:33:25,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 14:33:25,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 14:33:25,952 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 14:33:25,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 14:33:25,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 14:33:25,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 14:33:25,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 14:33:25,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 14:33:25,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 14:33:25,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 14:33:25,955 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 14:33:25,955 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 14:33:25,955 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 -> fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 14:33:26,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 14:33:26,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 14:33:26,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 14:33:26,197 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 14:33:26,197 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 14:33:26,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/bigshot_s2.i [2025-01-23 14:33:27,325 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8004347cf/931e6085076b42d1a5fd60c6597da29b/FLAG5fd6a1047 [2025-01-23 14:33:27,595 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 14:33:27,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread/bigshot_s2.i [2025-01-23 14:33:27,611 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8004347cf/931e6085076b42d1a5fd60c6597da29b/FLAG5fd6a1047 [2025-01-23 14:33:27,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8004347cf/931e6085076b42d1a5fd60c6597da29b [2025-01-23 14:33:27,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 14:33:27,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 14:33:27,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 14:33:27,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 14:33:27,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 14:33:27,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:33:27" (1/1) ... [2025-01-23 14:33:27,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7976ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:27, skipping insertion in model container [2025-01-23 14:33:27,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 02:33:27" (1/1) ... [2025-01-23 14:33:27,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 14:33:28,176 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/bigshot_s2.i[55203,55216] [2025-01-23 14:33:28,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 14:33:28,196 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 14:33:28,290 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/bigshot_s2.i[55203,55216] [2025-01-23 14:33:28,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 14:33:28,357 INFO L204 MainTranslator]: Completed translation [2025-01-23 14:33:28,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28 WrapperNode [2025-01-23 14:33:28,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 14:33:28,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 14:33:28,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 14:33:28,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 14:33:28,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,398 INFO L138 Inliner]: procedures = 322, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-01-23 14:33:28,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 14:33:28,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 14:33:28,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 14:33:28,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 14:33:28,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,414 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 14:33:28,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 14:33:28,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 14:33:28,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 14:33:28,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (1/1) ... [2025-01-23 14:33:28,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 14:33:28,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:33:28,476 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 14:33:28,481 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 14:33:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-01-23 14:33:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 14:33:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 14:33:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 14:33:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 14:33:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 14:33:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 14:33:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 14:33:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 14:33:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 14:33:28,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 14:33:28,499 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 14:33:28,607 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 14:33:28,609 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 14:33:28,714 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 14:33:28,716 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 14:33:28,777 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 14:33:28,777 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-23 14:33:28,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:33:28 BoogieIcfgContainer [2025-01-23 14:33:28,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 14:33:28,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 14:33:28,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 14:33:28,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 14:33:28,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 02:33:27" (1/3) ... [2025-01-23 14:33:28,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47438ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:33:28, skipping insertion in model container [2025-01-23 14:33:28,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 02:33:28" (2/3) ... [2025-01-23 14:33:28,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47438ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 02:33:28, skipping insertion in model container [2025-01-23 14:33:28,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:33:28" (3/3) ... [2025-01-23 14:33:28,784 INFO L128 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2025-01-23 14:33:28,793 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 14:33:28,794 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bigshot_s2.i that has 3 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-23 14:33:28,794 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 14:33:28,837 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 14:33:28,865 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 14:33:28,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 14:33:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:33:28,871 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 14:33:28,883 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 14:33:28,941 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 14:33:28,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 14:33:28,966 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;@6b951a3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 14:33:28,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-23 14:33:29,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 14:33:29,218 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:33:29,219 INFO L139 ounterexampleChecker]: Examining path program with hash -643221357, occurence #1 [2025-01-23 14:33:29,220 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:33:29,220 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:33:29,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:33:29,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1735421001, now seen corresponding path program 1 times [2025-01-23 14:33:29,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:33:29,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192866075] [2025-01-23 14:33:29,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:33:29,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:33:29,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-23 14:33:29,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-23 14:33:29,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:33:29,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:33:29,406 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 14:33:29,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:33:29,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192866075] [2025-01-23 14:33:29,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192866075] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 14:33:29,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 14:33:29,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 14:33:29,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276376970] [2025-01-23 14:33:29,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 14:33:29,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 14:33:29,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:33:29,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 14:33:29,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 14:33:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:29,427 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:33:29,428 INFO L472 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) [2025-01-23 14:33:29,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:29,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:29,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 14:33:29,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 14:33:29,457 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:33:29,457 INFO L139 ounterexampleChecker]: Examining path program with hash 2053293624, occurence #1 [2025-01-23 14:33:29,457 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-01-23 14:33:29,457 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:33:29,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:33:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash 500860533, now seen corresponding path program 1 times [2025-01-23 14:33:29,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:33:29,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172069924] [2025-01-23 14:33:29,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:33:29,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:33:29,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-23 14:33:29,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-23 14:33:29,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:33:29,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:33:29,890 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 14:33:29,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:33:29,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172069924] [2025-01-23 14:33:29,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172069924] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 14:33:29,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 14:33:29,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 14:33:29,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959157181] [2025-01-23 14:33:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 14:33:29,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 14:33:29,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:33:29,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 14:33:29,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-23 14:33:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:29,893 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:33:29,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 14:33:29,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:29,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:29,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:29,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-23 14:33:29,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 14:33:29,997 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:33:29,998 INFO L139 ounterexampleChecker]: Examining path program with hash 2053293624, occurence #2 [2025-01-23 14:33:29,998 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 14:33:29,998 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 14:33:30,030 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:30,031 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-23 14:33:30,032 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:30,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 14:33:30,032 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:30,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-23 14:33:30,032 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:30,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-23 14:33:30,032 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:30,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-01-23 14:33:30,032 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:30,032 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 14:33:30,033 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:30,033 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-01-23 14:33:30,033 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:30,033 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 14:33:30,033 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:33:30,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:33:30,034 INFO L85 PathProgramCache]: Analyzing trace with hash 68892728, now seen corresponding path program 1 times [2025-01-23 14:33:30,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:33:30,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213499716] [2025-01-23 14:33:30,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:33:30,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:33:30,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-23 14:33:30,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-23 14:33:30,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:33:30,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:33:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 14:33:30,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:33:30,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213499716] [2025-01-23 14:33:30,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213499716] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:33:30,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520890] [2025-01-23 14:33:30,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 14:33:30,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:33:30,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:33:30,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 14:33:30,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 14:33:30,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-23 14:33:30,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-23 14:33:30,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 14:33:30,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:33:30,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-23 14:33:30,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:33:30,389 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-23 14:33:30,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-01-23 14:33:30,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-01-23 14:33:30,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-01-23 14:33:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 14:33:30,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:33:30,616 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_19 (Array Int Int))) (< 0 (select (select (store |c_#memory_int| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| v_ArrVal_19) |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src#1.offset| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1| 1)))) is different from false [2025-01-23 14:33:30,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2025-01-23 14:33:30,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520890] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:33:30,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:33:30,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2025-01-23 14:33:30,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266486232] [2025-01-23 14:33:30,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:33:30,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-23 14:33:30,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:33:30,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-23 14:33:30,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=288, Unknown=2, NotChecked=34, Total=380 [2025-01-23 14:33:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:30,687 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:33:30,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 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 14:33:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:30,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:30,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:30,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-23 14:33:31,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:33:31,073 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 14:33:31,073 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-01-23 14:33:31,074 INFO L139 ounterexampleChecker]: Examining path program with hash 2053293624, occurence #3 [2025-01-23 14:33:31,074 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-01-23 14:33:31,074 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-01-23 14:33:31,074 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-01-23 14:33:31,074 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-01-23 14:33:31,074 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-01-23 14:33:31,074 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-01-23 14:33:31,074 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-01-23 14:33:31,074 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-01-23 14:33:31,074 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-01-23 14:33:31,074 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-01-23 14:33:31,074 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-01-23 14:33:31,074 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-01-23 14:33:31,074 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-01-23 14:33:31,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 14:33:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1559659835, now seen corresponding path program 2 times [2025-01-23 14:33:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 14:33:31,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740484211] [2025-01-23 14:33:31,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 14:33:31,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 14:33:31,091 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-01-23 14:33:31,098 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 14:33:31,100 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 14:33:31,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:33:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 14:33:31,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 14:33:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740484211] [2025-01-23 14:33:31,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740484211] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 14:33:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383202993] [2025-01-23 14:33:31,429 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 14:33:31,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:33:31,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 14:33:31,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 14:33:31,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 14:33:31,474 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-01-23 14:33:31,490 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 14:33:31,490 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 14:33:31,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 14:33:31,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-23 14:33:31,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 14:33:31,586 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2025-01-23 14:33:31,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2025-01-23 14:33:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-23 14:33:31,667 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-01-23 14:33:31,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2025-01-23 14:33:31,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-23 14:33:31,712 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-01-23 14:33:31,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2025-01-23 14:33:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 14:33:31,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 14:33:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 14:33:39,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383202993] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 14:33:39,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 14:33:39,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 22 [2025-01-23 14:33:39,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817569489] [2025-01-23 14:33:39,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 14:33:39,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-23 14:33:39,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 14:33:39,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-23 14:33:39,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=420, Unknown=2, NotChecked=0, Total=506 [2025-01-23 14:33:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:39,678 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 14:33:39,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 22 states have internal predecessors, (61), 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 14:33:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 14:33:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 14:33:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 14:33:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 14:33:40,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-01-23 14:33:40,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-01-23 14:33:40,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-01-23 14:33:40,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-23 14:33:40,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 14:33:40,351 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-01-23 14:33:40,352 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-23 14:33:40,355 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-23 14:33:40,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-01-23 14:33:40,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.01 02:33:40 BasicIcfg [2025-01-23 14:33:40,371 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-23 14:33:40,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-23 14:33:40,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-23 14:33:40,371 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-23 14:33:40,375 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 02:33:28" (3/4) ... [2025-01-23 14:33:40,376 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-23 14:33:40,378 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-23 14:33:40,381 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-23 14:33:40,386 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2025-01-23 14:33:40,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-01-23 14:33:40,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-23 14:33:40,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-23 14:33:40,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-23 14:33:40,433 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-01-23 14:33:40,433 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/witness.yml [2025-01-23 14:33:40,433 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-23 14:33:40,434 INFO L158 Benchmark]: Toolchain (without parser) took 12521.33ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 58.1MB in the beginning and 37.5MB in the end (delta: 20.6MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2025-01-23 14:33:40,435 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 14:33:40,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.27ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 24.4MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-23 14:33:40,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.22ms. Allocated memory is still 83.9MB. Free memory was 24.4MB in the beginning and 22.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 14:33:40,435 INFO L158 Benchmark]: Boogie Preprocessor took 41.33ms. Allocated memory is still 83.9MB. Free memory was 22.2MB in the beginning and 58.6MB in the end (delta: -36.5MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2025-01-23 14:33:40,436 INFO L158 Benchmark]: RCFGBuilder took 332.54ms. Allocated memory is still 83.9MB. Free memory was 58.6MB in the beginning and 38.3MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-23 14:33:40,436 INFO L158 Benchmark]: TraceAbstraction took 11591.64ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 37.2MB in the beginning and 42.7MB in the end (delta: -5.5MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2025-01-23 14:33:40,436 INFO L158 Benchmark]: Witness Printer took 62.45ms. Allocated memory is still 125.8MB. Free memory was 42.7MB in the beginning and 37.5MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 14:33:40,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.27ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 24.4MB in the end (delta: 33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.22ms. Allocated memory is still 83.9MB. Free memory was 24.4MB in the beginning and 22.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.33ms. Allocated memory is still 83.9MB. Free memory was 22.2MB in the beginning and 58.6MB in the end (delta: -36.5MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * RCFGBuilder took 332.54ms. Allocated memory is still 83.9MB. Free memory was 58.6MB in the beginning and 38.3MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11591.64ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 37.2MB in the beginning and 42.7MB in the end (delta: -5.5MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 62.45ms. Allocated memory is still 125.8MB. Free memory was 42.7MB in the beginning and 37.5MB in the end (delta: 5.2MB). There was no memory consumed. 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: 176, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 50, dependent conditional: 47, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 129, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 81, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 81, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 255, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 129, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 81, unknown conditional: 0, unknown unconditional: 81] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 47, Maximal queried relation: 0, Independence queries for same thread: 47, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 29, Number of trivial persistent sets: 26, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 82, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 176, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 50, dependent conditional: 47, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 47, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 129, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 129, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 81, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 81, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 255, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 129, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 81, unknown conditional: 0, unknown unconditional: 81] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 47, Maximal queried relation: 0, Independence queries for same thread: 47 - PositiveResult [Line: 1107]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 11.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.0s, 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: 29, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 151 ConstructedInterpolants, 16 QuantifiedInterpolants, 1653 SizeOfPredicates, 19 NumberOfNonLiveVariables, 321 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 2/24 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 32, ConditionCalculationTime [ms]: 0, ConditionCalculations: 9, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-23 14:33:40,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE