./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/unroll-4.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 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/unroll-4.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 bb07434636f33664cc09ed992a41516efeea5f96121c916fb8904844e76d9fcd --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 23:40:06,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 23:40:06,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 23:40:06,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 23:40:06,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 23:40:06,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 23:40:06,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 23:40:06,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 23:40:06,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 23:40:06,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 23:40:06,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 23:40:06,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 23:40:06,485 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 23:40:06,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 23:40:06,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 23:40:06,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 23:40:06,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 23:40:06,487 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 23:40:06,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 23:40:06,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 23:40:06,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 23:40:06,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 23:40:06,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 23:40:06,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 23:40:06,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 23:40:06,492 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 23:40:06,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 23:40:06,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 23:40:06,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 23:40:06,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 23:40:06,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 23:40:06,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 23:40:06,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 23:40:06,494 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 23:40:06,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 23:40:06,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 23:40:06,495 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 23:40:06,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 23:40:06,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 23:40:06,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 23:40:06,496 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 23:40:06,497 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 -> bb07434636f33664cc09ed992a41516efeea5f96121c916fb8904844e76d9fcd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 23:40:06,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 23:40:06,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 23:40:06,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 23:40:06,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 23:40:06,813 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 23:40:06,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-10-17 23:40:08,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 23:40:08,446 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 23:40:08,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-10-17 23:40:08,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3f487a7a6/cb0997124d0848e7bfbc24a1f506174c/FLAGf1b0e5c78 [2024-10-17 23:40:08,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3f487a7a6/cb0997124d0848e7bfbc24a1f506174c [2024-10-17 23:40:08,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 23:40:08,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 23:40:08,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 23:40:08,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 23:40:08,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 23:40:08,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590c33c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08, skipping insertion in model container [2024-10-17 23:40:08,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 23:40:08,717 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-4.wvr.c[2598,2611] [2024-10-17 23:40:08,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 23:40:08,743 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 23:40:08,775 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-4.wvr.c[2598,2611] [2024-10-17 23:40:08,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 23:40:08,798 INFO L204 MainTranslator]: Completed translation [2024-10-17 23:40:08,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08 WrapperNode [2024-10-17 23:40:08,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 23:40:08,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 23:40:08,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 23:40:08,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 23:40:08,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,817 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,840 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 147 [2024-10-17 23:40:08,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 23:40:08,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 23:40:08,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 23:40:08,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 23:40:08,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 23:40:08,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 23:40:08,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 23:40:08,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 23:40:08,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (1/1) ... [2024-10-17 23:40:08,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 23:40:08,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 23:40:08,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 23:40:08,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 23:40:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 23:40:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 23:40:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 23:40:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 23:40:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 23:40:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 23:40:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 23:40:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 23:40:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 23:40:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 23:40:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 23:40:08,969 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 23:40:09,090 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 23:40:09,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 23:40:09,427 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 23:40:09,427 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 23:40:09,683 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 23:40:09,683 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-17 23:40:09,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:40:09 BoogieIcfgContainer [2024-10-17 23:40:09,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 23:40:09,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 23:40:09,687 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 23:40:09,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 23:40:09,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:40:08" (1/3) ... [2024-10-17 23:40:09,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0f840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:40:09, skipping insertion in model container [2024-10-17 23:40:09,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:40:08" (2/3) ... [2024-10-17 23:40:09,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd0f840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:40:09, skipping insertion in model container [2024-10-17 23:40:09,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:40:09" (3/3) ... [2024-10-17 23:40:09,693 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2024-10-17 23:40:09,708 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 23:40:09,708 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 23:40:09,708 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 23:40:09,754 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-17 23:40:09,792 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 23:40:09,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 23:40:09,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 23:40:09,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 23:40:09,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 23:40:09,876 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 23:40:09,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:40:09,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 23:40:09,900 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;@7cfe7e52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 23:40:09,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-17 23:40:10,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:40:10,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:40:10,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1864200359, now seen corresponding path program 1 times [2024-10-17 23:40:10,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 23:40:10,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51345486] [2024-10-17 23:40:10,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:40:10,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 23:40:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:40:10,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:40:10,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 23:40:10,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51345486] [2024-10-17 23:40:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51345486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 23:40:10,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 23:40:10,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 23:40:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973923602] [2024-10-17 23:40:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 23:40:10,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 23:40:10,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 23:40:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 23:40:10,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 23:40:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:40:10,638 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:40:10,640 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) [2024-10-17 23:40:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:40:10,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:40:10,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 23:40:10,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:40:10,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:40:10,698 INFO L85 PathProgramCache]: Analyzing trace with hash 168537377, now seen corresponding path program 1 times [2024-10-17 23:40:10,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 23:40:10,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821991972] [2024-10-17 23:40:10,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:40:10,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 23:40:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:40:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:40:10,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 23:40:10,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821991972] [2024-10-17 23:40:10,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821991972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 23:40:10,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 23:40:10,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-17 23:40:10,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550236588] [2024-10-17 23:40:10,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 23:40:10,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 23:40:10,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 23:40:10,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 23:40:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-17 23:40:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:40:10,940 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:40:10,941 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) [2024-10-17 23:40:10,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:40:10,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:40:11,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:40:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 23:40:11,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-17 23:40:11,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:40:11,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:40:11,036 INFO L85 PathProgramCache]: Analyzing trace with hash -568450307, now seen corresponding path program 1 times [2024-10-17 23:40:11,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 23:40:11,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94154967] [2024-10-17 23:40:11,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:40:11,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 23:40:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:40:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:40:11,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 23:40:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94154967] [2024-10-17 23:40:11,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94154967] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 23:40:11,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847506222] [2024-10-17 23:40:11,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:40:11,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 23:40:11,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 23:40:11,473 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 23:40:11,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 23:40:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:40:11,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-17 23:40:11,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:40:11,671 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 [2024-10-17 23:40:11,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 23:40:11,981 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:40:12,708 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 336 treesize of output 296 [2024-10-17 23:40:13,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 23:40:13,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 15 new quantified variables, introduced 36 case distinctions, treesize of input 2236 treesize of output 1420 [2024-10-17 23:41:33,431 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:41:41,168 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:41:51,876 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-10-17 23:42:06,232 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:42:15,804 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:42:17,935 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-10-17 23:42:44,921 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:43:51,109 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:43:56,265 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:44:08,448 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:44:58,185 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-10-17 23:45:17,690 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") [2024-10-17 23:45:17,691 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-10-17 23:45:17,693 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 [2024-10-17 23:45:17,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-17 23:45:17,892 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 [2024-10-17 23:45:17,908 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 [2024-10-17 23:45:17,914 INFO L158 Benchmark]: Toolchain (without parser) took 309442.24ms. Allocated memory was 155.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 119.7MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-10-17 23:45:17,914 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 23:45:17,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.52ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 106.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-17 23:45:17,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.69ms. Allocated memory is still 155.2MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 23:45:17,916 INFO L158 Benchmark]: Boogie Preprocessor took 30.85ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 23:45:17,916 INFO L158 Benchmark]: RCFGBuilder took 811.74ms. Allocated memory is still 155.2MB. Free memory was 102.9MB in the beginning and 87.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-17 23:45:17,917 INFO L158 Benchmark]: TraceAbstraction took 308225.85ms. Allocated memory was 155.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 86.8MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-10-17 23:45:17,920 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 113.2MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.52ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 106.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.69ms. Allocated memory is still 155.2MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.85ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 811.74ms. Allocated memory is still 155.2MB. Free memory was 102.9MB in the beginning and 87.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 308225.85ms. Allocated memory was 155.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 86.8MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.7GB. 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. [2024-10-17 23:45:17,941 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-4.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 bb07434636f33664cc09ed992a41516efeea5f96121c916fb8904844e76d9fcd --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 23:45:20,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 23:45:20,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-10-17 23:45:20,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 23:45:20,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 23:45:20,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 23:45:20,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 23:45:20,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 23:45:20,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 23:45:20,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 23:45:20,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 23:45:20,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 23:45:20,411 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 23:45:20,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 23:45:20,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 23:45:20,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 23:45:20,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 23:45:20,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 23:45:20,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 23:45:20,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 23:45:20,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 23:45:20,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-17 23:45:20,419 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 23:45:20,419 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-17 23:45:20,419 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 23:45:20,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 23:45:20,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 23:45:20,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 23:45:20,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 23:45:20,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 23:45:20,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 23:45:20,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 23:45:20,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 23:45:20,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 23:45:20,421 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 23:45:20,421 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-17 23:45:20,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 23:45:20,422 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 23:45:20,422 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-17 23:45:20,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 23:45:20,425 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-17 23:45:20,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 23:45:20,425 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 23:45:20,425 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 -> bb07434636f33664cc09ed992a41516efeea5f96121c916fb8904844e76d9fcd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 23:45:20,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 23:45:20,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 23:45:20,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 23:45:20,742 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 23:45:20,743 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 23:45:20,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-10-17 23:45:22,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 23:45:22,460 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 23:45:22,461 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-4.wvr.c [2024-10-17 23:45:22,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/70be61c0d/a80c43928d0b40cfa59ea2500179f748/FLAGf267545d4 [2024-10-17 23:45:22,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/70be61c0d/a80c43928d0b40cfa59ea2500179f748 [2024-10-17 23:45:22,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 23:45:22,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 23:45:22,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 23:45:22,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 23:45:22,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 23:45:22,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3aafaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22, skipping insertion in model container [2024-10-17 23:45:22,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 23:45:22,749 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-4.wvr.c[2598,2611] [2024-10-17 23:45:22,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 23:45:22,772 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 23:45:22,797 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-4.wvr.c[2598,2611] [2024-10-17 23:45:22,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 23:45:22,829 INFO L204 MainTranslator]: Completed translation [2024-10-17 23:45:22,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22 WrapperNode [2024-10-17 23:45:22,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 23:45:22,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 23:45:22,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 23:45:22,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 23:45:22,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,880 INFO L138 Inliner]: procedures = 25, calls = 26, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 145 [2024-10-17 23:45:22,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 23:45:22,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 23:45:22,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 23:45:22,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 23:45:22,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 23:45:22,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 23:45:22,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 23:45:22,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 23:45:22,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (1/1) ... [2024-10-17 23:45:22,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 23:45:22,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 23:45:22,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 23:45:22,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 23:45:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 23:45:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 23:45:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 23:45:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 23:45:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 23:45:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-17 23:45:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 23:45:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-17 23:45:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 23:45:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 23:45:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-17 23:45:23,004 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 23:45:23,113 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 23:45:23,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 23:45:23,477 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 23:45:23,479 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 23:45:23,713 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 23:45:23,714 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-17 23:45:23,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:45:23 BoogieIcfgContainer [2024-10-17 23:45:23,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 23:45:23,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 23:45:23,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 23:45:23,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 23:45:23,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:45:22" (1/3) ... [2024-10-17 23:45:23,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290fdacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:45:23, skipping insertion in model container [2024-10-17 23:45:23,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:45:22" (2/3) ... [2024-10-17 23:45:23,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290fdacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:45:23, skipping insertion in model container [2024-10-17 23:45:23,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:45:23" (3/3) ... [2024-10-17 23:45:23,721 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2024-10-17 23:45:23,742 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 23:45:23,742 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 23:45:23,743 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 23:45:23,780 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-17 23:45:23,817 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 23:45:23,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 23:45:23,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 23:45:23,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 23:45:23,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 23:45:23,913 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 23:45:23,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:23,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 23:45:23,941 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;@4484243b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 23:45:23,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-17 23:45:24,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:24,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:24,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1217371101, now seen corresponding path program 1 times [2024-10-17 23:45:24,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:24,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868483315] [2024-10-17 23:45:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:45:24,217 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 [2024-10-17 23:45:24,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:24,241 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) [2024-10-17 23:45:24,242 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 [2024-10-17 23:45:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:45:24,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-17 23:45:24,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:45:24,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 23:45:24,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:24,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868483315] [2024-10-17 23:45:24,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868483315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 23:45:24,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 23:45:24,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 23:45:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004418947] [2024-10-17 23:45:24,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 23:45:24,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 23:45:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:24,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 23:45:24,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 23:45:24,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:24,411 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:24,412 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) [2024-10-17 23:45:24,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:24,476 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 [2024-10-17 23:45:24,674 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 [2024-10-17 23:45:24,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:24,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash -870897375, now seen corresponding path program 1 times [2024-10-17 23:45:24,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:24,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086067028] [2024-10-17 23:45:24,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:45:24,677 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 [2024-10-17 23:45:24,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:24,680 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) [2024-10-17 23:45:24,681 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 [2024-10-17 23:45:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:45:24,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-17 23:45:24,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:45:24,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 23:45:24,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:24,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086067028] [2024-10-17 23:45:24,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086067028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 23:45:24,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 23:45:24,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 23:45:24,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177008916] [2024-10-17 23:45:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 23:45:24,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 23:45:24,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:24,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 23:45:24,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 23:45:24,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:24,799 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:24,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2024-10-17 23:45:24,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:24,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:24,893 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 [2024-10-17 23:45:25,092 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 [2024-10-17 23:45:25,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:25,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1262132861, now seen corresponding path program 1 times [2024-10-17 23:45:25,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:25,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317649602] [2024-10-17 23:45:25,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 23:45:25,094 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 [2024-10-17 23:45:25,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:25,096 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) [2024-10-17 23:45:25,097 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 [2024-10-17 23:45:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:45:25,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 23:45:25,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:45:25,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:45:25,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:45:25,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:25,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317649602] [2024-10-17 23:45:25,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317649602] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:45:25,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:45:25,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-17 23:45:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401449368] [2024-10-17 23:45:25,679 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:45:25,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-17 23:45:25,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:25,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-17 23:45:25,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-10-17 23:45:25,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:25,683 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:25,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 23:45:25,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:25,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:25,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:26,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:26,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 23:45:26,180 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 (5)] Ended with exit code 0 [2024-10-17 23:45:26,377 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 [2024-10-17 23:45:26,377 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:26,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:26,378 INFO L85 PathProgramCache]: Analyzing trace with hash 576091677, now seen corresponding path program 2 times [2024-10-17 23:45:26,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:26,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847160377] [2024-10-17 23:45:26,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 23:45:26,379 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 [2024-10-17 23:45:26,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:26,382 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) [2024-10-17 23:45:26,385 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 [2024-10-17 23:45:26,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 23:45:26,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 23:45:26,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-17 23:45:26,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:26,876 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 23:45:26,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 76 [2024-10-17 23:45:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:45:27,129 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:45:30,370 INFO L349 Elim1Store]: treesize reduction 20, result has 92.8 percent of original size [2024-10-17 23:45:30,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 67 treesize of output 308 [2024-10-17 23:45:36,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 23:45:36,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:36,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847160377] [2024-10-17 23:45:36,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847160377] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:45:36,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:45:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-10-17 23:45:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535672460] [2024-10-17 23:45:36,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:45:36,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-17 23:45:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:36,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-17 23:45:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=126, Unknown=1, NotChecked=0, Total=156 [2024-10-17 23:45:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:36,069 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:36,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 23:45:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 23:45:36,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:36,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 23:45:36,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:36,858 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 [2024-10-17 23:45:37,053 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 [2024-10-17 23:45:37,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:37,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:37,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1579489859, now seen corresponding path program 3 times [2024-10-17 23:45:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:37,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652695048] [2024-10-17 23:45:37,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 23:45:37,055 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 [2024-10-17 23:45:37,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:37,058 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) [2024-10-17 23:45:37,059 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 [2024-10-17 23:45:37,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-17 23:45:37,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 23:45:37,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-17 23:45:37,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:37,556 INFO L349 Elim1Store]: treesize reduction 35, result has 63.9 percent of original size [2024-10-17 23:45:37,557 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 8 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 89 [2024-10-17 23:45:38,109 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-17 23:45:38,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:45:38,420 INFO L349 Elim1Store]: treesize reduction 5, result has 95.4 percent of original size [2024-10-17 23:45:38,420 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 8 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 139 [2024-10-17 23:45:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-17 23:45:43,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:43,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652695048] [2024-10-17 23:45:43,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652695048] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:45:43,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:45:43,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-17 23:45:43,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097980546] [2024-10-17 23:45:43,997 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:45:43,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-17 23:45:43,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:43,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-17 23:45:43,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-17 23:45:43,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:43,999 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:43,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 23:45:43,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:43,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:43,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 23:45:44,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:44,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 23:45:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:44,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:45:44,550 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 (7)] Forceful destruction successful, exit code 0 [2024-10-17 23:45:44,746 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 [2024-10-17 23:45:44,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:44,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:44,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1640356097, now seen corresponding path program 4 times [2024-10-17 23:45:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:44,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107291341] [2024-10-17 23:45:44,748 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 23:45:44,749 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 [2024-10-17 23:45:44,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:44,751 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) [2024-10-17 23:45:44,753 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 [2024-10-17 23:45:44,815 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 23:45:44,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 23:45:44,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-17 23:45:44,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 23:45:44,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:45:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 23:45:45,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:45,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107291341] [2024-10-17 23:45:45,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107291341] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:45:45,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:45:45,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2024-10-17 23:45:45,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793591789] [2024-10-17 23:45:45,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:45:45,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-17 23:45:45,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-17 23:45:45,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-10-17 23:45:45,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:45,233 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:45,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 17 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) [2024-10-17 23:45:45,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:45,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:45,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 23:45:45,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:45,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:45:45,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:45:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:45:45,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:45:45,963 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 [2024-10-17 23:45:46,159 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 [2024-10-17 23:45:46,159 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1690548004, now seen corresponding path program 5 times [2024-10-17 23:45:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352180811] [2024-10-17 23:45:46,161 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 23:45:46,161 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 [2024-10-17 23:45:46,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:46,164 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) [2024-10-17 23:45:46,165 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 [2024-10-17 23:45:46,248 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-10-17 23:45:46,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 23:45:46,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-17 23:45:46,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:46,373 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 23:45:46,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:45:46,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 23:45:46,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:46,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352180811] [2024-10-17 23:45:46,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352180811] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:45:46,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:45:46,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-10-17 23:45:46,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252083751] [2024-10-17 23:45:46,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:45:46,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-17 23:45:46,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:46,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-17 23:45:46,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-10-17 23:45:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:46,817 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:46,817 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) [2024-10-17 23:45:46,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:46,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:46,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:45:46,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:46,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:45:46,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:45:46,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:45:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:45:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:45:48,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 23:45:48,749 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 [2024-10-17 23:45:48,944 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 [2024-10-17 23:45:48,945 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:45:48,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:45:48,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1742479653, now seen corresponding path program 6 times [2024-10-17 23:45:48,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:45:48,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520721996] [2024-10-17 23:45:48,946 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-17 23:45:48,946 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 [2024-10-17 23:45:48,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:45:48,948 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) [2024-10-17 23:45:48,949 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 [2024-10-17 23:45:49,082 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-10-17 23:45:49,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 23:45:49,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-17 23:45:49,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:45:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 23:45:49,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:45:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 1 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 23:45:54,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:45:54,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520721996] [2024-10-17 23:45:54,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520721996] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:45:54,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:45:54,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-10-17 23:45:54,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210915678] [2024-10-17 23:45:54,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:45:54,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-17 23:45:54,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:45:54,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-17 23:45:54,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=255, Unknown=2, NotChecked=0, Total=306 [2024-10-17 23:45:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:45:54,310 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:45:54,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 23:45:54,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:46:01,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-17 23:46:03,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-17 23:46:05,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-10-17 23:46:05,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:46:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:46:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:46:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:46:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:46:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:46:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 23:46:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-17 23:46:05,539 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 (10)] Ended with exit code 0 [2024-10-17 23:46:05,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2024-10-17 23:46:05,731 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:46:05,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:46:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash 847030300, now seen corresponding path program 7 times [2024-10-17 23:46:05,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:46:05,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321854816] [2024-10-17 23:46:05,732 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-17 23:46:05,732 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 [2024-10-17 23:46:05,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:46:05,735 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2024-10-17 23:46:05,736 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 (11)] Waiting until timeout for monitored process [2024-10-17 23:46:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 23:46:05,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-17 23:46:05,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:46:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 39 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 23:46:06,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:46:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 39 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-17 23:46:09,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 23:46:09,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321854816] [2024-10-17 23:46:09,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321854816] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 23:46:09,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-17 23:46:09,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-10-17 23:46:09,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780876197] [2024-10-17 23:46:09,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-17 23:46:09,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-17 23:46:09,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 23:46:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-17 23:46:09,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2024-10-17 23:46:09,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:46:09,501 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 23:46:09,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 23:46:09,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:46:09,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-10-17 23:46:09,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 23:46:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 23:46:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 23:46:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-17 23:46:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 23:46:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 23:46:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 23:46:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-17 23:46:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-17 23:46:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 23:46:14,108 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 (11)] Ended with exit code 0 [2024-10-17 23:46:14,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2024-10-17 23:46:14,303 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 23:46:14,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 23:46:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1781680284, now seen corresponding path program 8 times [2024-10-17 23:46:14,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 23:46:14,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957069671] [2024-10-17 23:46:14,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 23:46:14,304 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 [2024-10-17 23:46:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 23:46:14,305 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2024-10-17 23:46:14,306 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 (12)] Waiting until timeout for monitored process [2024-10-17 23:46:14,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 23:46:14,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 23:46:14,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-17 23:46:14,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 23:46:15,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 23:46:15,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 280 [2024-10-17 23:46:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 23:46:24,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 23:46:40,283 WARN L286 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 519 DAG size of output: 495 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-10-17 23:46:40,283 INFO L349 Elim1Store]: treesize reduction 40, result has 96.3 percent of original size [2024-10-17 23:46:40,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 30 new quantified variables, introduced 120 case distinctions, treesize of input 131 treesize of output 1152 Killed by 15