./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c -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 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 03:12:41,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 03:12:41,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 03:12:41,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 03:12:41,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 03:12:41,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 03:12:41,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 03:12:41,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 03:12:41,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 03:12:41,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 03:12:41,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 03:12:41,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 03:12:41,662 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 03:12:41,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 03:12:41,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 03:12:41,664 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 03:12:41,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 03:12:41,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 03:12:41,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 03:12:41,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 03:12:41,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 03:12:41,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 03:12:41,669 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 03:12:41,669 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 03:12:41,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 03:12:41,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 03:12:41,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 03:12:41,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 03:12:41,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 03:12:41,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 03:12:41,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 03:12:41,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 03:12:41,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 03:12:41,671 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 03:12:41,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 03:12:41,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 03:12:41,672 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 03:12:41,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 03:12:41,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 03:12:41,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 03:12:41,674 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 03:12:41,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 546 [2024-10-18 03:12:41,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 03:12:41,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 03:12:41,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 03:12:41,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 03:12:41,963 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 03:12:41,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-10-18 03:12:43,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 03:12:43,637 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 03:12:43,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-10-18 03:12:43,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f25efe087/0e2362ab42a1438ea37ff5a6c0262c9d/FLAGf1abd2bcd [2024-10-18 03:12:44,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f25efe087/0e2362ab42a1438ea37ff5a6c0262c9d [2024-10-18 03:12:44,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 03:12:44,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 03:12:44,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 03:12:44,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 03:12:44,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 03:12:44,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587357ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44, skipping insertion in model container [2024-10-18 03:12:44,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 03:12:44,251 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-10-18 03:12:44,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 03:12:44,293 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 03:12:44,356 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-10-18 03:12:44,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 03:12:44,381 INFO L204 MainTranslator]: Completed translation [2024-10-18 03:12:44,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44 WrapperNode [2024-10-18 03:12:44,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 03:12:44,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 03:12:44,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 03:12:44,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 03:12:44,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,434 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 157 [2024-10-18 03:12:44,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 03:12:44,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 03:12:44,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 03:12:44,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 03:12:44,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 03:12:44,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 03:12:44,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 03:12:44,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 03:12:44,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (1/1) ... [2024-10-18 03:12:44,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 03:12:44,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 03:12:44,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 03:12:44,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 03:12:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 03:12:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 03:12:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 03:12:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 03:12:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 03:12:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 03:12:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 03:12:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-18 03:12:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 03:12:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 03:12:44,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 03:12:44,571 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 03:12:44,658 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 03:12:44,661 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 03:12:44,927 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 03:12:44,927 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 03:12:45,190 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 03:12:45,190 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-18 03:12:45,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 03:12:45 BoogieIcfgContainer [2024-10-18 03:12:45,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 03:12:45,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 03:12:45,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 03:12:45,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 03:12:45,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 03:12:44" (1/3) ... [2024-10-18 03:12:45,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76561a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 03:12:45, skipping insertion in model container [2024-10-18 03:12:45,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:12:44" (2/3) ... [2024-10-18 03:12:45,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76561a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 03:12:45, skipping insertion in model container [2024-10-18 03:12:45,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 03:12:45" (3/3) ... [2024-10-18 03:12:45,202 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2024-10-18 03:12:45,218 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 03:12:45,219 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 03:12:45,219 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 03:12:45,268 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-18 03:12:45,312 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 03:12:45,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 03:12:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 03:12:45,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 03:12:45,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-18 03:12:45,407 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 03:12:45,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:12:45,427 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 03:12:45,435 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;@4a43efdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=546, mConComCheckerConditionCriterion=false [2024-10-18 03:12:45,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-18 03:12:45,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:12:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:12:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1037453965, now seen corresponding path program 1 times [2024-10-18 03:12:45,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 03:12:45,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314887266] [2024-10-18 03:12:45,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:12:45,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 03:12:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:12:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:12:46,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 03:12:46,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314887266] [2024-10-18 03:12:46,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314887266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 03:12:46,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 03:12:46,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 03:12:46,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610931481] [2024-10-18 03:12:46,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 03:12:46,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 03:12:46,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 03:12:46,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 03:12:46,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 03:12:46,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:12:46,241 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:12:46,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2024-10-18 03:12:46,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:12:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:12:46,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-18 03:12:46,293 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:12:46,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:12:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1949249607, now seen corresponding path program 1 times [2024-10-18 03:12:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 03:12:46,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814617641] [2024-10-18 03:12:46,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:12:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 03:12:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:12:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:12:46,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 03:12:46,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814617641] [2024-10-18 03:12:46,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814617641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 03:12:46,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 03:12:46,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-18 03:12:46,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253758510] [2024-10-18 03:12:46,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 03:12:46,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 03:12:46,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 03:12:46,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 03:12:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-18 03:12:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:12:46,516 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:12:46,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:12:46,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:12:46,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:12:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:12:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 03:12:46,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-18 03:12:46,648 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:12:46,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:12:46,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1299222499, now seen corresponding path program 1 times [2024-10-18 03:12:46,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 03:12:46,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135538461] [2024-10-18 03:12:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:12:46,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 03:12:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:12:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:12:47,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 03:12:47,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135538461] [2024-10-18 03:12:47,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135538461] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 03:12:47,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980967027] [2024-10-18 03:12:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:12:47,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 03:12:47,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 03:12:47,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-18 03:12:47,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-18 03:12:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:12:47,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-18 03:12:47,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:12:47,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-18 03:12:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 03:12:47,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:12:48,542 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 381 treesize of output 335 [2024-10-18 03:12:49,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 03:12:49,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 19 new quantified variables, introduced 55 case distinctions, treesize of input 4362 treesize of output 2802 [2024-10-18 03:14:23,732 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-10-18 03:14:26,760 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2024-10-18 03:19:18,549 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-10-18 03:19:18,552 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-10-18 03:19:18,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-10-18 03:19:18,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-18 03:19:18,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-18 03:19:18,754 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 70 more [2024-10-18 03:19:18,758 INFO L158 Benchmark]: Toolchain (without parser) took 394737.03ms. Allocated memory was 161.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 99.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-10-18 03:19:18,758 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-18 03:19:18,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.15ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 130.3MB in the end (delta: -31.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-18 03:19:18,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.01ms. Allocated memory is still 161.5MB. Free memory was 130.3MB in the beginning and 128.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 03:19:18,760 INFO L158 Benchmark]: Boogie Preprocessor took 45.94ms. Allocated memory is still 161.5MB. Free memory was 128.3MB in the beginning and 126.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-18 03:19:18,761 INFO L158 Benchmark]: RCFGBuilder took 705.39ms. Allocated memory is still 161.5MB. Free memory was 126.2MB in the beginning and 77.3MB in the end (delta: 48.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-18 03:19:18,762 INFO L158 Benchmark]: TraceAbstraction took 393563.48ms. Allocated memory was 161.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 75.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-10-18 03:19:18,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.15ms. Allocated memory is still 161.5MB. Free memory was 98.8MB in the beginning and 130.3MB in the end (delta: -31.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.01ms. Allocated memory is still 161.5MB. Free memory was 130.3MB in the beginning and 128.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.94ms. Allocated memory is still 161.5MB. Free memory was 128.3MB in the beginning and 126.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 705.39ms. Allocated memory is still 161.5MB. Free memory was 126.2MB in the beginning and 77.3MB in the end (delta: 48.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 393563.48ms. Allocated memory was 161.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 75.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-18 03:19:18,804 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 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 546 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 03:19:21,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 03:19:21,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-10-18 03:19:21,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 03:19:21,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 03:19:21,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 03:19:21,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 03:19:21,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 03:19:21,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 03:19:21,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 03:19:21,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 03:19:21,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 03:19:21,466 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 03:19:21,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 03:19:21,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 03:19:21,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 03:19:21,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 03:19:21,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 03:19:21,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 03:19:21,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 03:19:21,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 03:19:21,474 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-18 03:19:21,474 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 03:19:21,474 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-18 03:19:21,474 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 03:19:21,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 03:19:21,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 03:19:21,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 03:19:21,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 03:19:21,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 03:19:21,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 03:19:21,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 03:19:21,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 03:19:21,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 03:19:21,477 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 03:19:21,477 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-18 03:19:21,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 03:19:21,479 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 03:19:21,479 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-18 03:19:21,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 03:19:21,480 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-18 03:19:21,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 03:19:21,481 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 03:19:21,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 546 [2024-10-18 03:19:21,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 03:19:21,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 03:19:21,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 03:19:21,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 03:19:21,851 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 03:19:21,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-10-18 03:19:23,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 03:19:23,610 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 03:19:23,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-10-18 03:19:23,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/21c48649b/d9c8454a4b6f44919493496cb50595e2/FLAG5bd1b4492 [2024-10-18 03:19:23,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/21c48649b/d9c8454a4b6f44919493496cb50595e2 [2024-10-18 03:19:23,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 03:19:23,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 03:19:23,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 03:19:23,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 03:19:23,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 03:19:23,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 03:19:23" (1/1) ... [2024-10-18 03:19:23,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4d83bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:23, skipping insertion in model container [2024-10-18 03:19:23,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 03:19:23" (1/1) ... [2024-10-18 03:19:24,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 03:19:24,258 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-10-18 03:19:24,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 03:19:24,290 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 03:19:24,321 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-10-18 03:19:24,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 03:19:24,347 INFO L204 MainTranslator]: Completed translation [2024-10-18 03:19:24,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24 WrapperNode [2024-10-18 03:19:24,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 03:19:24,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 03:19:24,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 03:19:24,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 03:19:24,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,398 INFO L138 Inliner]: procedures = 25, calls = 28, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 155 [2024-10-18 03:19:24,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 03:19:24,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 03:19:24,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 03:19:24,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 03:19:24,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 03:19:24,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 03:19:24,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 03:19:24,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 03:19:24,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (1/1) ... [2024-10-18 03:19:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 03:19:24,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 03:19:24,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 03:19:24,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 03:19:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 03:19:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-18 03:19:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-18 03:19:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-18 03:19:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-18 03:19:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-18 03:19:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-18 03:19:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-18 03:19:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 03:19:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 03:19:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-18 03:19:24,555 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 03:19:24,702 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 03:19:24,704 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 03:19:25,083 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 03:19:25,084 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 03:19:25,445 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 03:19:25,446 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-18 03:19:25,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 03:19:25 BoogieIcfgContainer [2024-10-18 03:19:25,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 03:19:25,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 03:19:25,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 03:19:25,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 03:19:25,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 03:19:23" (1/3) ... [2024-10-18 03:19:25,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d08b46d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 03:19:25, skipping insertion in model container [2024-10-18 03:19:25,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 03:19:24" (2/3) ... [2024-10-18 03:19:25,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d08b46d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 03:19:25, skipping insertion in model container [2024-10-18 03:19:25,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 03:19:25" (3/3) ... [2024-10-18 03:19:25,459 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2024-10-18 03:19:25,477 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 03:19:25,478 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 03:19:25,478 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 03:19:25,522 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-18 03:19:25,573 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 03:19:25,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 03:19:25,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 03:19:25,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 03:19:25,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-18 03:19:25,677 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 03:19:25,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:19:25,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 03:19:25,705 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;@f64983d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=546, mConComCheckerConditionCriterion=false [2024-10-18 03:19:25,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-18 03:19:26,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:19:26,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:19:26,060 INFO L85 PathProgramCache]: Analyzing trace with hash 175941871, now seen corresponding path program 1 times [2024-10-18 03:19:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:19:26,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033224091] [2024-10-18 03:19:26,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:19:26,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:26,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:19:26,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:19:26,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-18 03:19:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:19:26,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 03:19:26,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:19:26,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:19:26,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 03:19:26,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:19:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033224091] [2024-10-18 03:19:26,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033224091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 03:19:26,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 03:19:26,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 03:19:26,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251130634] [2024-10-18 03:19:26,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 03:19:26,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 03:19:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:19:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 03:19:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 03:19:26,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:26,273 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:19:26,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2024-10-18 03:19:26,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:19:26,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-18 03:19:26,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:26,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:19:26,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:19:26,560 INFO L85 PathProgramCache]: Analyzing trace with hash 909814855, now seen corresponding path program 1 times [2024-10-18 03:19:26,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:19:26,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764028540] [2024-10-18 03:19:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:19:26,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:26,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:19:26,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:19:26,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-18 03:19:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:19:26,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-18 03:19:26,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:19:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:19:26,750 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 03:19:26,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:19:26,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764028540] [2024-10-18 03:19:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764028540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 03:19:26,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 03:19:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-18 03:19:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827947] [2024-10-18 03:19:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 03:19:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-18 03:19:26,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:19:26,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-18 03:19:26,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-18 03:19:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:26,755 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:19:26,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:19:26,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:19:26,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:19:26,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:19:26,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-18 03:19:27,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:27,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:19:27,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:19:27,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1165161629, now seen corresponding path program 1 times [2024-10-18 03:19:27,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:19:27,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920615219] [2024-10-18 03:19:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 03:19:27,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:27,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:19:27,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:19:27,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-18 03:19:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 03:19:27,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-18 03:19:27,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:19:27,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:19:27,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:19:27,812 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:19:27,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:19:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920615219] [2024-10-18 03:19:27,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920615219] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 03:19:27,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 03:19:27,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-10-18 03:19:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299540356] [2024-10-18 03:19:27,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 03:19:27,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-18 03:19:27,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:19:27,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-18 03:19:27,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-18 03:19:27,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:27,815 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:19:27,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:19:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:19:27,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:19:27,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:19:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:19:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:19:28,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-18 03:19:28,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:28,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:19:28,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:19:28,818 INFO L85 PathProgramCache]: Analyzing trace with hash -811491186, now seen corresponding path program 2 times [2024-10-18 03:19:28,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:19:28,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636910417] [2024-10-18 03:19:28,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 03:19:28,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:19:28,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:19:28,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:19:28,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-18 03:19:28,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-18 03:19:28,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 03:19:28,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-18 03:19:28,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:19:29,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-18 03:19:29,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 115 [2024-10-18 03:19:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:19:30,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:19:34,631 INFO L349 Elim1Store]: treesize reduction 25, result has 94.2 percent of original size [2024-10-18 03:19:34,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 83 treesize of output 471 [2024-10-18 03:19:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-18 03:19:58,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:19:58,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636910417] [2024-10-18 03:19:58,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636910417] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 03:19:58,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 03:19:58,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-18 03:19:58,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630254939] [2024-10-18 03:19:58,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 03:19:58,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-18 03:19:58,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:19:58,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-18 03:19:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=175, Unknown=1, NotChecked=0, Total=210 [2024-10-18 03:19:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:19:58,194 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:19:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:19:58,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:19:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:19:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:19:58,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:20:00,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:00,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-18 03:20:00,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:00,912 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:20:00,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:20:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash 688411438, now seen corresponding path program 3 times [2024-10-18 03:20:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:20:00,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987698390] [2024-10-18 03:20:00,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-18 03:20:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:20:00,914 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:20:00,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-18 03:20:01,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-18 03:20:01,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 03:20:01,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-18 03:20:01,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:20:01,333 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-18 03:20:01,390 INFO L349 Elim1Store]: treesize reduction 155, result has 10.9 percent of original size [2024-10-18 03:20:01,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 65 treesize of output 56 [2024-10-18 03:20:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-18 03:20:01,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:20:02,445 INFO L349 Elim1Store]: treesize reduction 10, result has 95.3 percent of original size [2024-10-18 03:20:02,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 84 treesize of output 254 [2024-10-18 03:20:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-18 03:20:25,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:20:25,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987698390] [2024-10-18 03:20:25,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987698390] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 03:20:25,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 03:20:25,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-10-18 03:20:25,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765567204] [2024-10-18 03:20:25,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 03:20:25,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-18 03:20:25,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:20:25,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-18 03:20:25,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-18 03:20:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:25,691 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:20:25,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:20:25,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:25,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:25,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:20:25,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:25,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:20:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:27,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:27,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-10-18 03:20:27,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:27,773 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:20:27,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:20:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2073656966, now seen corresponding path program 4 times [2024-10-18 03:20:27,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:20:27,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674446072] [2024-10-18 03:20:27,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-18 03:20:27,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:27,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:20:27,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:20:27,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-18 03:20:27,840 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-18 03:20:27,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 03:20:27,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-18 03:20:27,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:20:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 03:20:28,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:20:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 03:20:28,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:20:28,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674446072] [2024-10-18 03:20:28,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674446072] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 03:20:28,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 03:20:28,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-10-18 03:20:28,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622980335] [2024-10-18 03:20:28,926 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 03:20:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-18 03:20:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:20:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-18 03:20:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-18 03:20:28,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:28,927 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:20:28,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:20:28,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:28,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:28,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:20:28,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:28,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:28,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:20:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 03:20:31,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-18 03:20:31,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:31,673 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:20:31,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:20:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 914010219, now seen corresponding path program 5 times [2024-10-18 03:20:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:20:31,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721051027] [2024-10-18 03:20:31,674 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-18 03:20:31,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:31,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:20:31,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:20:31,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-18 03:20:31,773 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-18 03:20:31,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 03:20:31,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-18 03:20:31,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:20:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 03:20:31,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:20:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 03:20:32,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-18 03:20:32,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721051027] [2024-10-18 03:20:32,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721051027] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 03:20:32,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-18 03:20:32,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-10-18 03:20:32,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174307734] [2024-10-18 03:20:32,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-18 03:20:32,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-18 03:20:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-18 03:20:32,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-18 03:20:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-10-18 03:20:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:32,432 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 03:20:32,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.7) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-10-18 03:20:32,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 03:20:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 03:20:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-18 03:20:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 03:20:35,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 03:20:35,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-18 03:20:35,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-18 03:20:35,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-10-18 03:20:35,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:35,221 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 03:20:35,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 03:20:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash -850690486, now seen corresponding path program 6 times [2024-10-18 03:20:35,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-18 03:20:35,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696629115] [2024-10-18 03:20:35,222 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-18 03:20:35,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-18 03:20:35,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-18 03:20:35,225 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-18 03:20:35,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-18 03:20:35,365 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-10-18 03:20:35,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 03:20:35,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-18 03:20:35,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 03:20:35,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-18 03:20:35,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-18 03:21:01,512 INFO L349 Elim1Store]: treesize reduction 315, result has 12.7 percent of original size [2024-10-18 03:21:01,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 397 treesize of output 127 [2024-10-18 03:21:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 03:21:01,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 03:21:24,725 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 1846 treesize of output 1690 Killed by 15