./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -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/popl20-more-queue-add-2-nl.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 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -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 16:16:22,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 16:16:22,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 16:16:22,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 16:16:22,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 16:16:22,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 16:16:22,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 16:16:22,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 16:16:22,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 16:16:22,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 16:16:22,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 16:16:22,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 16:16:22,130 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 16:16:22,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 16:16:22,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 16:16:22,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 16:16:22,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 16:16:22,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 16:16:22,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 16:16:22,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 16:16:22,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 16:16:22,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 16:16:22,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 16:16:22,138 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 16:16:22,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 16:16:22,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 16:16:22,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 16:16:22,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 16:16:22,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 16:16:22,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 16:16:22,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 16:16:22,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 16:16:22,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 16:16:22,139 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 16:16:22,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 16:16:22,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 16:16:22,140 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 16:16:22,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 16:16:22,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 16:16:22,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 16:16:22,140 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 16:16:22,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 613bf9314e4e3fb6e64527ec38c7e6b39400e524de37a5103e9f06d9db406d3d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-17 16:16:22,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 16:16:22,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 16:16:22,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 16:16:22,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 16:16:22,358 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 16:16:22,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2024-10-17 16:16:23,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 16:16:23,763 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 16:16:23,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2024-10-17 16:16:23,770 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d2bf017ef/59aa527b0987424291cec25549004c33/FLAG67f994475 [2024-10-17 16:16:23,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d2bf017ef/59aa527b0987424291cec25549004c33 [2024-10-17 16:16:23,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 16:16:23,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 16:16:23,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 16:16:23,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 16:16:23,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 16:16:23,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:16:23" (1/1) ... [2024-10-17 16:16:23,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a654ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:23, skipping insertion in model container [2024-10-17 16:16:23,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:16:23" (1/1) ... [2024-10-17 16:16:23,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 16:16:23,973 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/popl20-more-queue-add-2-nl.wvr.c[2896,2909] [2024-10-17 16:16:23,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 16:16:23,992 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 16:16:24,014 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/popl20-more-queue-add-2-nl.wvr.c[2896,2909] [2024-10-17 16:16:24,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 16:16:24,029 INFO L204 MainTranslator]: Completed translation [2024-10-17 16:16:24,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24 WrapperNode [2024-10-17 16:16:24,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 16:16:24,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 16:16:24,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 16:16:24,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 16:16:24,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,060 INFO L138 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 159 [2024-10-17 16:16:24,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 16:16:24,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 16:16:24,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 16:16:24,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 16:16:24,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 16:16:24,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 16:16:24,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 16:16:24,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 16:16:24,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (1/1) ... [2024-10-17 16:16:24,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 16:16:24,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:24,125 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 16:16:24,128 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 16:16:24,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 16:16:24,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 16:16:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 16:16:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 16:16:24,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 16:16:24,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 16:16:24,193 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 16:16:24,274 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 16:16:24,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 16:16:24,512 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 16:16:24,512 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 16:16:24,708 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 16:16:24,709 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-17 16:16:24,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:16:24 BoogieIcfgContainer [2024-10-17 16:16:24,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 16:16:24,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 16:16:24,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 16:16:24,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 16:16:24,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 04:16:23" (1/3) ... [2024-10-17 16:16:24,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639fa18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 04:16:24, skipping insertion in model container [2024-10-17 16:16:24,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:16:24" (2/3) ... [2024-10-17 16:16:24,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639fa18b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 04:16:24, skipping insertion in model container [2024-10-17 16:16:24,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:16:24" (3/3) ... [2024-10-17 16:16:24,725 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-2-nl.wvr.c [2024-10-17 16:16:24,736 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 16:16:24,738 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 16:16:24,738 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 16:16:24,814 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-17 16:16:24,875 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 16:16:24,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 16:16:24,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:24,877 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 16:16:24,879 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 16:16:24,961 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 16:16:24,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:24,983 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 16:16:24,989 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;@4bed8755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 16:16:24,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-17 16:16:25,314 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 16:16:25,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1104973994, now seen corresponding path program 1 times [2024-10-17 16:16:25,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:16:25,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650817711] [2024-10-17 16:16:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:25,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:16:25,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650817711] [2024-10-17 16:16:25,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650817711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 16:16:25,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 16:16:25,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 16:16:25,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247912084] [2024-10-17 16:16:25,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 16:16:25,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 16:16:25,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:16:25,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 16:16:25,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 16:16:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:25,704 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:25,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 16:16:25,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:25,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 16:16:25,769 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 16:16:25,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash -880676330, now seen corresponding path program 1 times [2024-10-17 16:16:25,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:16:25,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82887641] [2024-10-17 16:16:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:25,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:25,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:16:25,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82887641] [2024-10-17 16:16:25,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82887641] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:16:25,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212292998] [2024-10-17 16:16:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:25,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:25,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:25,985 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 16:16:25,987 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 16:16:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:26,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 16:16:26,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:16:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:26,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:16:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:26,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212292998] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:16:26,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:16:26,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-17 16:16:26,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823930043] [2024-10-17 16:16:26,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:16:26,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-17 16:16:26,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:16:26,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-17 16:16:26,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-17 16:16:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:26,232 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:26,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 16:16:26,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:26,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:26,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:26,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:26,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 16:16:26,559 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,SelfDestructingSolverStorable1 [2024-10-17 16:16:26,561 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 16:16:26,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:26,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1988673066, now seen corresponding path program 2 times [2024-10-17 16:16:26,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:16:26,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880404263] [2024-10-17 16:16:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:26,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:27,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:16:27,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880404263] [2024-10-17 16:16:27,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880404263] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:16:27,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985382613] [2024-10-17 16:16:27,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 16:16:27,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:27,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:27,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:16:27,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 16:16:27,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 16:16:27,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 16:16:27,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-17 16:16:27,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:16:27,456 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 11 treesize of output 3 [2024-10-17 16:16:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:27,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:16:27,612 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-10-17 16:16:27,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 11 [2024-10-17 16:16:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:27,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985382613] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:16:27,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:16:27,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2024-10-17 16:16:27,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639031345] [2024-10-17 16:16:27,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:16:27,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-17 16:16:27,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:16:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-17 16:16:27,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2024-10-17 16:16:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:27,808 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:27,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 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 16:16:27,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:27,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:27,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:28,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:28,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-17 16:16:28,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:28,362 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 16:16:28,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1802626050, now seen corresponding path program 1 times [2024-10-17 16:16:28,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:16:28,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957459064] [2024-10-17 16:16:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:29,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:16:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957459064] [2024-10-17 16:16:29,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957459064] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:16:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88811202] [2024-10-17 16:16:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:29,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:29,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:29,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:16:29,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 16:16:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:29,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-17 16:16:29,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:16:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 16:16:29,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:16:29,707 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-10-17 16:16:29,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-10-17 16:16:29,731 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-17 16:16:29,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88811202] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:16:29,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:16:29,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 5] total 21 [2024-10-17 16:16:29,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544636654] [2024-10-17 16:16:29,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:16:29,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-17 16:16:29,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:16:29,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-17 16:16:29,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2024-10-17 16:16:29,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:29,734 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:29,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 21 states have internal predecessors, (69), 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 16:16:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:16:30,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-17 16:16:30,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:30,592 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 16:16:30,696 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 12 treesize of output 4 [2024-10-17 16:16:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1249273012, now seen corresponding path program 1 times [2024-10-17 16:16:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:32,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 16:16:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:32,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 16:16:32,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 16:16:32,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 16:16:32,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-17 16:16:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:32,907 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:32,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 16:16:32,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:32,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:32,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:32,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:16:32,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:16:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:16:33,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable5 [2024-10-17 16:16:33,223 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 16:16:33,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:33,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1922379816, now seen corresponding path program 2 times [2024-10-17 16:16:33,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:16:33,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834212939] [2024-10-17 16:16:33,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:33,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:35,290 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:35,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:16:35,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834212939] [2024-10-17 16:16:35,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834212939] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:16:35,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929632724] [2024-10-17 16:16:35,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 16:16:35,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:35,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:35,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:16:35,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 16:16:35,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 16:16:35,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 16:16:35,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-10-17 16:16:35,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:16:36,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 16:16:36,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:16:40,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 16:16:40,641 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 72 [2024-10-17 16:16:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-17 16:16:41,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929632724] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:16:41,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:16:41,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22, 17] total 64 [2024-10-17 16:16:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527015938] [2024-10-17 16:16:41,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:16:41,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-10-17 16:16:41,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:16:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-10-17 16:16:41,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=3907, Unknown=1, NotChecked=0, Total=4160 [2024-10-17 16:16:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:41,200 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:41,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.7076923076923076) internal successors, (111), 64 states have internal predecessors, (111), 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 16:16:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:16:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:16:41,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:16:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:16:45,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:16:45,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-17 16:16:45,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-17 16:16:45,339 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 16:16:45,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:16:45,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1556016196, now seen corresponding path program 3 times [2024-10-17 16:16:45,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:16:45,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392678584] [2024-10-17 16:16:45,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:16:45,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:16:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:16:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:16:49,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:16:49,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392678584] [2024-10-17 16:16:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392678584] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:16:49,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298772035] [2024-10-17 16:16:49,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 16:16:49,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:16:49,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:16:49,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:16:49,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 16:16:49,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-17 16:16:49,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 16:16:49,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-10-17 16:16:49,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:16:53,406 INFO L349 Elim1Store]: treesize reduction 48, result has 39.2 percent of original size [2024-10-17 16:16:53,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 51 [2024-10-17 16:16:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 16:16:54,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:16:59,291 INFO L349 Elim1Store]: treesize reduction 92, result has 51.3 percent of original size [2024-10-17 16:16:59,292 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 8 new quantified variables, introduced 28 case distinctions, treesize of input 104 treesize of output 131 [2024-10-17 16:16:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 16:16:59,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298772035] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:16:59,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:16:59,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 31, 27] total 94 [2024-10-17 16:16:59,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102847570] [2024-10-17 16:16:59,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:16:59,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-10-17 16:16:59,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:16:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-10-17 16:16:59,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=8244, Unknown=1, NotChecked=0, Total=8930 [2024-10-17 16:16:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:16:59,968 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:16:59,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 1.6210526315789473) internal successors, (154), 94 states have internal predecessors, (154), 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 16:16:59,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:16:59,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:16:59,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:16:59,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:16:59,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:16:59,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:16:59,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:17:08,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-17 16:17:12,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-17 16:17:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:17:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:17:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:17:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:17:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:17:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:17:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:17:25,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 16:17:25,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:17:25,600 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 16:17:25,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:17:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash -666434984, now seen corresponding path program 4 times [2024-10-17 16:17:25,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:17:25,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781386293] [2024-10-17 16:17:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:17:25,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:17:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:17:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 159 proven. 149 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-17 16:17:26,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:17:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781386293] [2024-10-17 16:17:26,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781386293] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:17:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480373909] [2024-10-17 16:17:26,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 16:17:26,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:17:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:17:26,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:17:26,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 16:17:26,143 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 16:17:26,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 16:17:26,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-17 16:17:26,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:17:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 256 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:17:26,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:17:27,813 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 251 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:17:27,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480373909] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:17:27,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:17:27,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 20] total 55 [2024-10-17 16:17:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365833580] [2024-10-17 16:17:27,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:17:27,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-10-17 16:17:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:17:27,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-10-17 16:17:27,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=811, Invalid=2269, Unknown=0, NotChecked=0, Total=3080 [2024-10-17 16:17:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:17:27,816 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:17:27,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 4.267857142857143) internal successors, (239), 55 states have internal predecessors, (239), 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 16:17:27,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:17:27,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:17:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:17:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:17:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:17:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:17:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:17:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:17:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:17:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:17:28,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-17 16:17:28,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-17 16:17:28,536 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 16:17:28,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:17:28,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1590302996, now seen corresponding path program 5 times [2024-10-17 16:17:28,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:17:28,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199651540] [2024-10-17 16:17:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:17:28,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:17:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:17:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 161 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:17:35,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:17:35,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199651540] [2024-10-17 16:17:35,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199651540] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:17:35,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889101114] [2024-10-17 16:17:35,553 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 16:17:35,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:17:35,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:17:35,554 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:17:35,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-17 16:17:35,790 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-10-17 16:17:35,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 16:17:35,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 184 conjuncts are in the unsatisfiable core [2024-10-17 16:17:35,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:17:45,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 16:17:45,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 109 treesize of output 28 [2024-10-17 16:17:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:17:46,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:18:02,658 INFO L349 Elim1Store]: treesize reduction 360, result has 54.6 percent of original size [2024-10-17 16:18:02,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 251 treesize of output 514 [2024-10-17 16:18:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:18:07,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889101114] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:18:07,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:18:07,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 58, 57] total 179 [2024-10-17 16:18:07,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439211712] [2024-10-17 16:18:07,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:18:07,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 180 states [2024-10-17 16:18:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:18:07,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2024-10-17 16:18:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3695, Invalid=28525, Unknown=0, NotChecked=0, Total=32220 [2024-10-17 16:18:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:18:07,359 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:18:07,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 180 states, 180 states have (on average 1.538888888888889) internal successors, (277), 179 states have internal predecessors, (277), 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 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:18:07,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:18:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:18:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:18:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:18:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:18:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:18:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:18:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:18:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:18:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2024-10-17 16:18:49,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-17 16:18:50,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:18:50,110 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 16:18:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:18:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1415171268, now seen corresponding path program 6 times [2024-10-17 16:18:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:18:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439683688] [2024-10-17 16:18:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:18:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:18:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 16:19:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 108 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:19:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 16:19:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439683688] [2024-10-17 16:19:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439683688] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 16:19:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475260690] [2024-10-17 16:19:05,857 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-17 16:19:05,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:19:05,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 16:19:05,861 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 16:19:05,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-17 16:19:07,147 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-10-17 16:19:07,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 16:19:07,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 209 conjuncts are in the unsatisfiable core [2024-10-17 16:19:07,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 16:19:08,062 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 16:19:08,152 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 16:19:17,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 16:19:17,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 120 treesize of output 31 [2024-10-17 16:19:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:19:19,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 16:19:42,182 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 280 treesize of output 260 [2024-10-17 16:19:42,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 1597 treesize of output 1501 [2024-10-17 16:19:42,686 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 532 treesize of output 492 [2024-10-17 16:19:44,371 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,375 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,377 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,378 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,379 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,381 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,382 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,383 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,384 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,385 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,385 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,386 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,386 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,387 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,387 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,396 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,397 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,398 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,399 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,400 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,414 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,415 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,416 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,417 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,418 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,418 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,419 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,422 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,423 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,424 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,426 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,428 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,430 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,430 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,431 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,434 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,438 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,441 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,443 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,443 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,445 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,445 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,446 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:19:44,446 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-17 16:20:52,301 WARN L286 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 216 DAG size of output: 184 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-10-17 16:20:52,301 INFO L349 Elim1Store]: treesize reduction 77, result has 85.5 percent of original size [2024-10-17 16:20:52,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 135 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 1874928339 treesize of output 1296114729 [2024-10-17 16:21:12,351 WARN L286 SmtUtils]: Spent 19.79s on a formula simplification. DAG size of input: 70253 DAG size of output: 409 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-17 16:23:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 443 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 16:23:15,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475260690] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 16:23:15,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 16:23:15,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 63, 62] total 196 [2024-10-17 16:23:15,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738626879] [2024-10-17 16:23:15,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 16:23:15,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2024-10-17 16:23:15,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 16:23:15,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2024-10-17 16:23:15,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3542, Invalid=35070, Unknown=0, NotChecked=0, Total=38612 [2024-10-17 16:23:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:23:15,767 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 16:23:15,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 1.5380710659898478) internal successors, (303), 196 states have internal predecessors, (303), 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 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2024-10-17 16:23:15,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 16:23:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 16:23:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 16:23:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 16:23:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 16:23:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 16:23:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-17 16:23:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-10-17 16:23:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-17 16:23:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2024-10-17 16:23:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-17 16:23:37,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-17 16:23:37,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 16:23:37,781 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-17 16:23:37,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 16:23:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1840815684, now seen corresponding path program 7 times [2024-10-17 16:23:37,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 16:23:37,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446275493] [2024-10-17 16:23:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 16:23:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 16:23:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat