./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d 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-horseshoe.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 ceb2af5016fd0ad74653237fbc44a2b3541e4ff971325e3807dab6f19c05af6d --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 05:51:09,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 05:51:09,695 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 05:51:09,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 05:51:09,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 05:51:09,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 05:51:09,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 05:51:09,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 05:51:09,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 05:51:09,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 05:51:09,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 05:51:09,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 05:51:09,731 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 05:51:09,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 05:51:09,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 05:51:09,733 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 05:51:09,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 05:51:09,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 05:51:09,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 05:51:09,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 05:51:09,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 05:51:09,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 05:51:09,734 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 05:51:09,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 05:51:09,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 05:51:09,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 05:51:09,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 05:51:09,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 05:51:09,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 05:51:09,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 05:51:09,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 05:51:09,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 05:51:09,739 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 05:51:09,739 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 05:51:09,739 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 05:51:09,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceb2af5016fd0ad74653237fbc44a2b3541e4ff971325e3807dab6f19c05af6d [2023-11-23 05:51:09,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 05:51:09,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 05:51:09,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 05:51:09,962 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 05:51:09,963 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 05:51:09,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2023-11-23 05:51:11,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 05:51:11,330 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 05:51:11,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c [2023-11-23 05:51:11,345 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9b971139c/148c3c8e4bb34eb68b001d20c044ca15/FLAGf101cd7e2 [2023-11-23 05:51:11,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9b971139c/148c3c8e4bb34eb68b001d20c044ca15 [2023-11-23 05:51:11,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 05:51:11,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 05:51:11,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 05:51:11,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 05:51:11,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 05:51:11,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345428aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11, skipping insertion in model container [2023-11-23 05:51:11,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 05:51:11,539 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c[3463,3476] [2023-11-23 05:51:11,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 05:51:11,552 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 05:51:11,573 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-horseshoe.wvr.c[3463,3476] [2023-11-23 05:51:11,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 05:51:11,581 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 05:51:11,581 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 05:51:11,587 INFO L206 MainTranslator]: Completed translation [2023-11-23 05:51:11,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11 WrapperNode [2023-11-23 05:51:11,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 05:51:11,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 05:51:11,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 05:51:11,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 05:51:11,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,631 INFO L138 Inliner]: procedures = 25, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2023-11-23 05:51:11,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 05:51:11,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 05:51:11,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 05:51:11,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 05:51:11,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 05:51:11,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 05:51:11,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 05:51:11,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 05:51:11,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (1/1) ... [2023-11-23 05:51:11,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 05:51:11,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:11,703 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) [2023-11-23 05:51:11,705 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 [2023-11-23 05:51:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 05:51:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 05:51:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 05:51:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 05:51:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 05:51:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 05:51:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 05:51:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 05:51:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 05:51:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 05:51:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 05:51:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 05:51:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 05:51:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 05:51:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 05:51:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 05:51:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 05:51:11,749 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 05:51:11,869 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 05:51:11,874 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 05:51:12,426 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 05:51:12,704 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 05:51:12,704 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 05:51:12,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:51:12 BoogieIcfgContainer [2023-11-23 05:51:12,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 05:51:12,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 05:51:12,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 05:51:12,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 05:51:12,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:51:11" (1/3) ... [2023-11-23 05:51:12,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30827077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:51:12, skipping insertion in model container [2023-11-23 05:51:12,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:51:11" (2/3) ... [2023-11-23 05:51:12,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30827077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:51:12, skipping insertion in model container [2023-11-23 05:51:12,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:51:12" (3/3) ... [2023-11-23 05:51:12,712 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-horseshoe.wvr.c [2023-11-23 05:51:12,719 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 05:51:12,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 05:51:12,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 05:51:12,726 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 05:51:12,762 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 05:51:12,797 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:51:12,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 05:51:12,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:12,808 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) [2023-11-23 05:51:12,832 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 [2023-11-23 05:51:12,842 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 05:51:12,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 05:51:12,858 INFO L357 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, mHoare=true, 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;@16564976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 05:51:12,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-23 05:51:13,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:13,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:13,091 INFO L85 PathProgramCache]: Analyzing trace with hash -705714404, now seen corresponding path program 1 times [2023-11-23 05:51:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:13,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344231147] [2023-11-23 05:51:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:51:13,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:13,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344231147] [2023-11-23 05:51:13,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344231147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:51:13,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:51:13,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 05:51:13,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739754455] [2023-11-23 05:51:13,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:51:13,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 05:51:13,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:13,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 05:51:13,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 05:51:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:13,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:13,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-23 05:51:13,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:13,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:13,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 05:51:13,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:13,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:13,751 INFO L85 PathProgramCache]: Analyzing trace with hash 350444744, now seen corresponding path program 1 times [2023-11-23 05:51:13,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:13,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390871281] [2023-11-23 05:51:13,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:13,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:13,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390871281] [2023-11-23 05:51:13,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390871281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 05:51:13,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 05:51:13,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 05:51:13,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644069723] [2023-11-23 05:51:13,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 05:51:13,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 05:51:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 05:51:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 05:51:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:13,939 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:13,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 05:51:13,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:13,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:14,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 05:51:14,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:14,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash -931130999, now seen corresponding path program 1 times [2023-11-23 05:51:14,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:14,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765766396] [2023-11-23 05:51:14,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:14,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:14,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:14,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765766396] [2023-11-23 05:51:14,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765766396] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:14,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483739138] [2023-11-23 05:51:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:14,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:14,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:14,213 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) [2023-11-23 05:51:14,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 05:51:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:14,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 05:51:14,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:14,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:14,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483739138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:14,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:14,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-23 05:51:14,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143346697] [2023-11-23 05:51:14,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:14,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 05:51:14,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:14,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 05:51:14,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-23 05:51:14,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:14,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:14,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 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) [2023-11-23 05:51:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:14,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:14,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:15,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 05:51:15,066 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:15,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:15,066 INFO L85 PathProgramCache]: Analyzing trace with hash 425528373, now seen corresponding path program 2 times [2023-11-23 05:51:15,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:15,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514379059] [2023-11-23 05:51:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:15,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:15,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:15,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514379059] [2023-11-23 05:51:15,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514379059] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:15,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718091532] [2023-11-23 05:51:15,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:51:15,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:15,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:15,549 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) [2023-11-23 05:51:15,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 05:51:15,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:51:15,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:15,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 05:51:15,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:15,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:51:15,849 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 23 treesize of output 15 [2023-11-23 05:51:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:15,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:16,070 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-23 05:51:16,071 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 [2023-11-23 05:51:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 05:51:16,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718091532] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:16,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:16,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-11-23 05:51:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744527680] [2023-11-23 05:51:16,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:16,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 05:51:16,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:16,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 05:51:16,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2023-11-23 05:51:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:16,283 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:16,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.391304347826087) internal successors, (101), 22 states have internal predecessors, (101), 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) [2023-11-23 05:51:16,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:16,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:16,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:16,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:16,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:16,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:16,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:16,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:16,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:16,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1215721814, now seen corresponding path program 1 times [2023-11-23 05:51:16,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:16,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113382054] [2023-11-23 05:51:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 05:51:17,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:17,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113382054] [2023-11-23 05:51:17,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113382054] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:17,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778695786] [2023-11-23 05:51:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:17,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:17,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:17,031 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) [2023-11-23 05:51:17,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 05:51:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:17,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 05:51:17,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 05:51:17,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 05:51:17,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778695786] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:17,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:17,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-23 05:51:17,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891569378] [2023-11-23 05:51:17,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:17,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 05:51:17,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:17,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 05:51:17,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-23 05:51:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:17,281 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:17,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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) [2023-11-23 05:51:17,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:17,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:17,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:17,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:17,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:17,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:17,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:17,612 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:17,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash -635860299, now seen corresponding path program 2 times [2023-11-23 05:51:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:17,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741168088] [2023-11-23 05:51:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:51:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:18,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741168088] [2023-11-23 05:51:18,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741168088] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:18,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826751223] [2023-11-23 05:51:18,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:51:18,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:18,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:18,098 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) [2023-11-23 05:51:18,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 05:51:18,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:51:18,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:18,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-23 05:51:18,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:18,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:51:18,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 58 [2023-11-23 05:51:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:51:19,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:19,552 INFO L349 Elim1Store]: treesize reduction 4, result has 95.7 percent of original size [2023-11-23 05:51:19,553 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 45 treesize of output 101 [2023-11-23 05:51:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:51:20,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826751223] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:20,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:20,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 41 [2023-11-23 05:51:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528931305] [2023-11-23 05:51:20,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:20,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-23 05:51:20,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:20,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-23 05:51:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1427, Unknown=0, NotChecked=0, Total=1722 [2023-11-23 05:51:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:20,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:20,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0952380952380953) internal successors, (130), 41 states have internal predecessors, (130), 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) [2023-11-23 05:51:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:20,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:21,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:21,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:21,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 05:51:21,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 05:51:21,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:21,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1674066193, now seen corresponding path program 3 times [2023-11-23 05:51:21,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:21,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390239604] [2023-11-23 05:51:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:21,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:22,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:51:22,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:22,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390239604] [2023-11-23 05:51:22,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390239604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:22,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401773006] [2023-11-23 05:51:22,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 05:51:22,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:22,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:22,025 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) [2023-11-23 05:51:22,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 05:51:22,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-23 05:51:22,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:22,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-23 05:51:22,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:22,536 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 [2023-11-23 05:51:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 05:51:22,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:22,686 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-23 05:51:22,687 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 [2023-11-23 05:51:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:51:23,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401773006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:23,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:23,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 36 [2023-11-23 05:51:23,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609782281] [2023-11-23 05:51:23,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:23,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-23 05:51:23,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:23,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-23 05:51:23,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 05:51:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:23,063 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:23,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.810810810810811) internal successors, (141), 36 states have internal predecessors, (141), 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) [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:23,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 05:51:23,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-23 05:51:23,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:23,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:23,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:23,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1775617333, now seen corresponding path program 4 times [2023-11-23 05:51:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887592449] [2023-11-23 05:51:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:24,943 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 05:51:24,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:24,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887592449] [2023-11-23 05:51:24,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887592449] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:24,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607118179] [2023-11-23 05:51:24,944 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 05:51:24,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:24,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:24,945 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) [2023-11-23 05:51:24,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 05:51:25,060 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 05:51:25,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:25,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 05:51:25,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:25,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:51:25,502 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 34 treesize of output 30 [2023-11-23 05:51:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 05:51:25,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:25,867 INFO L349 Elim1Store]: treesize reduction 4, result has 95.7 percent of original size [2023-11-23 05:51:25,868 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 45 treesize of output 101 [2023-11-23 05:51:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 05:51:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607118179] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:26,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:26,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 35 [2023-11-23 05:51:26,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054330308] [2023-11-23 05:51:26,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:26,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-23 05:51:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:26,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-23 05:51:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 05:51:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:26,313 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:26,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.5) internal successors, (126), 35 states have internal predecessors, (126), 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) [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-23 05:51:26,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:27,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 05:51:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:27,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:27,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 05:51:27,718 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:27,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash -725157822, now seen corresponding path program 1 times [2023-11-23 05:51:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804272383] [2023-11-23 05:51:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 05:51:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804272383] [2023-11-23 05:51:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804272383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539948968] [2023-11-23 05:51:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:28,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:28,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:28,808 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) [2023-11-23 05:51:28,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 05:51:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:28,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 05:51:28,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 05:51:29,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:29,161 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-23 05:51:29,162 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 [2023-11-23 05:51:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 05:51:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539948968] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:29,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:29,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 5] total 24 [2023-11-23 05:51:29,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742593578] [2023-11-23 05:51:29,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:29,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-23 05:51:29,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:29,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-23 05:51:29,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2023-11-23 05:51:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:29,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:29,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.32) internal successors, (108), 24 states have internal predecessors, (108), 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) [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:29,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:30,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:30,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:30,273 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:30,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1101916287, now seen corresponding path program 2 times [2023-11-23 05:51:30,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:30,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673584228] [2023-11-23 05:51:30,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:30,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 20 proven. 93 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 05:51:31,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:31,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673584228] [2023-11-23 05:51:31,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673584228] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:31,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287925742] [2023-11-23 05:51:31,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 05:51:31,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:31,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:31,339 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) [2023-11-23 05:51:31,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 05:51:31,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 05:51:31,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:31,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-23 05:51:31,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:31,758 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 3 [2023-11-23 05:51:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 20 proven. 71 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 05:51:31,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:31,869 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-11-23 05:51:31,869 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 13 [2023-11-23 05:51:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 20 proven. 44 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-11-23 05:51:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287925742] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:31,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:31,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 6] total 34 [2023-11-23 05:51:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643315874] [2023-11-23 05:51:31,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:31,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-23 05:51:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:31,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-23 05:51:31,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1066, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 05:51:31,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:31,919 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:31,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.228571428571429) internal successors, (148), 34 states have internal predecessors, (148), 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) [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:31,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:31,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:33,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:33,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 05:51:33,292 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:33,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:33,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1537570206, now seen corresponding path program 3 times [2023-11-23 05:51:33,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:33,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116390246] [2023-11-23 05:51:33,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:33,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 90 proven. 113 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 05:51:33,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116390246] [2023-11-23 05:51:33,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116390246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074060210] [2023-11-23 05:51:33,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 05:51:33,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:33,769 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:51:33,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 05:51:34,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-23 05:51:34,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:34,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-23 05:51:34,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:35,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:51:35,119 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 37 treesize of output 30 [2023-11-23 05:51:35,140 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 74 proven. 51 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 05:51:35,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:35,318 INFO L349 Elim1Store]: treesize reduction 4, result has 95.7 percent of original size [2023-11-23 05:51:35,319 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 45 treesize of output 101 [2023-11-23 05:51:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 74 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 05:51:35,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074060210] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:35,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:35,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 8] total 35 [2023-11-23 05:51:35,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201668826] [2023-11-23 05:51:35,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:35,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-23 05:51:35,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-23 05:51:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1119, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 05:51:35,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:35,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:35,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.388888888888889) internal successors, (158), 35 states have internal predecessors, (158), 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) [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:35,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:35,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:35,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:35,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:38,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 05:51:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-23 05:51:38,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:39,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 05:51:39,002 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:39,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:39,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1991947310, now seen corresponding path program 4 times [2023-11-23 05:51:39,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:39,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877439055] [2023-11-23 05:51:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:39,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 221 proven. 66 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-23 05:51:39,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:39,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877439055] [2023-11-23 05:51:39,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877439055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:39,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514045611] [2023-11-23 05:51:39,565 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 05:51:39,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:39,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:39,566 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:51:39,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 05:51:39,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 05:51:39,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:39,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 05:51:39,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 289 proven. 45 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 05:51:40,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 248 proven. 86 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-23 05:51:41,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514045611] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:41,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:41,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23, 23] total 60 [2023-11-23 05:51:41,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532707782] [2023-11-23 05:51:41,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:41,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-11-23 05:51:41,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:41,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-11-23 05:51:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=653, Invalid=2887, Unknown=0, NotChecked=0, Total=3540 [2023-11-23 05:51:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:41,174 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:41,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 5.066666666666666) internal successors, (304), 60 states have internal predecessors, (304), 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) [2023-11-23 05:51:41,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:41,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:41,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:41,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-11-23 05:51:41,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:41,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:41,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-23 05:51:41,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-23 05:51:41,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:41,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:41,783 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:41,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash -518450725, now seen corresponding path program 5 times [2023-11-23 05:51:41,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:41,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013925466] [2023-11-23 05:51:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:41,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:51:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 87 proven. 284 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 05:51:43,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:51:43,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013925466] [2023-11-23 05:51:43,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013925466] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:51:43,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014838402] [2023-11-23 05:51:43,156 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 05:51:43,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:51:43,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:51:43,158 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:51:43,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 05:51:43,811 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-11-23 05:51:43,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:51:43,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 05:51:43,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:51:44,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 05:51:44,412 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 34 treesize of output 30 [2023-11-23 05:51:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 157 proven. 51 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-11-23 05:51:44,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:51:44,683 INFO L349 Elim1Store]: treesize reduction 4, result has 95.9 percent of original size [2023-11-23 05:51:44,683 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 46 treesize of output 105 [2023-11-23 05:51:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 152 proven. 56 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-11-23 05:51:45,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014838402] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:51:45,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:51:45,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 13, 14] total 54 [2023-11-23 05:51:45,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577504091] [2023-11-23 05:51:45,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:51:45,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-11-23 05:51:45,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:51:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-11-23 05:51:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=2673, Unknown=0, NotChecked=0, Total=2970 [2023-11-23 05:51:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:45,685 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:51:45,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.4363636363636365) internal successors, (244), 54 states have internal predecessors, (244), 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) [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:45,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:45,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-11-23 05:51:45,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:45,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-11-23 05:51:45,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-23 05:51:45,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:51:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:51:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:51:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:51:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-23 05:51:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:51:47,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 05:51:47,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 05:51:47,408 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:51:47,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:51:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2095277261, now seen corresponding path program 6 times [2023-11-23 05:51:47,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:51:47,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982627131] [2023-11-23 05:51:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:51:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:51:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:52:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:52:11,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:52:11,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982627131] [2023-11-23 05:52:11,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982627131] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:52:11,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530650276] [2023-11-23 05:52:11,534 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-23 05:52:11,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:52:11,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:52:11,535 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:52:11,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 05:52:12,080 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-11-23 05:52:12,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 05:52:12,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-23 05:52:12,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:52:14,893 INFO L349 Elim1Store]: treesize reduction 201, result has 31.4 percent of original size [2023-11-23 05:52:14,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 91 treesize of output 115 [2023-11-23 05:52:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-23 05:52:15,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:52:20,123 INFO L349 Elim1Store]: treesize reduction 189, result has 79.2 percent of original size [2023-11-23 05:52:20,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 228 treesize of output 784 [2023-11-23 05:54:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-23 05:54:10,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530650276] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 05:54:10,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 05:54:10,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 23, 24] total 92 [2023-11-23 05:54:10,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755297559] [2023-11-23 05:54:10,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 05:54:10,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2023-11-23 05:54:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 05:54:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2023-11-23 05:54:10,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=610, Invalid=7946, Unknown=0, NotChecked=0, Total=8556 [2023-11-23 05:54:10,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:54:10,125 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 05:54:10,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 2.043010752688172) internal successors, (190), 92 states have internal predecessors, (190), 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) [2023-11-23 05:54:10,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:54:10,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:54:10,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:54:10,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:54:10,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:54:10,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 05:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 05:54:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:54:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-23 05:54:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-23 05:54:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 05:54:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-23 05:54:19,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 05:54:20,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 05:54:20,057 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-23 05:54:20,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 05:54:20,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1365938528, now seen corresponding path program 7 times [2023-11-23 05:54:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 05:54:20,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267732523] [2023-11-23 05:54:20,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 05:54:20,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 05:54:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:56:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 54 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 05:56:23,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 05:56:23,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267732523] [2023-11-23 05:56:23,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267732523] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 05:56:23,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366258919] [2023-11-23 05:56:23,649 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-23 05:56:23,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 05:56:23,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 05:56:23,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 05:56:23,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 05:56:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 05:56:23,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 149 conjunts are in the unsatisfiable core [2023-11-23 05:56:23,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 05:56:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 292 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 05:56:32,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 05:56:53,728 WARN L293 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 805 DAG size of output: 679 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-23 05:56:53,729 INFO L349 Elim1Store]: treesize reduction 556, result has 84.4 percent of original size [2023-11-23 05:56:53,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 381 treesize of output 3095