./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/fib_safe-12.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity GENERATOR -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/fib_safe-12.i -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 e169a35d3412f69777e600b250d6db82170a9573bed36816bd393f67ca1b5302 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT --traceabstraction.tracecheck.mode.for.conditional.commutativity GENERATOR -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-16 23:22:30,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-16 23:22:30,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-16 23:22:30,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-16 23:22:31,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-16 23:22:31,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-16 23:22:31,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-16 23:22:31,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-16 23:22:31,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-16 23:22:31,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-16 23:22:31,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-16 23:22:31,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-16 23:22:31,029 INFO L153 SettingsManager]: * Use SBE=true [2024-10-16 23:22:31,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-16 23:22:31,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-16 23:22:31,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-16 23:22:31,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-16 23:22:31,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-16 23:22:31,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-16 23:22:31,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-16 23:22:31,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-16 23:22:31,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-16 23:22:31,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-16 23:22:31,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-16 23:22:31,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-16 23:22:31,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-16 23:22:31,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-16 23:22:31,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-16 23:22:31,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-16 23:22:31,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-16 23:22:31,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 23:22:31,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-16 23:22:31,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-16 23:22:31,038 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-16 23:22:31,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-16 23:22:31,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-16 23:22:31,039 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-16 23:22:31,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-16 23:22:31,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-16 23:22:31,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-16 23:22:31,043 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-16 23:22:31,043 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 -> e169a35d3412f69777e600b250d6db82170a9573bed36816bd393f67ca1b5302 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: TraceCheck mode for conditional commutativity -> GENERATOR [2024-10-16 23:22:31,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-16 23:22:31,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-16 23:22:31,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-16 23:22:31,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-16 23:22:31,313 INFO L274 PluginConnector]: CDTParser initialized [2024-10-16 23:22:31,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/fib_safe-12.i [2024-10-16 23:22:32,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-16 23:22:33,026 INFO L384 CDTParser]: Found 1 translation units. [2024-10-16 23:22:33,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-12.i [2024-10-16 23:22:33,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8e35f255d/f926783c4f864a9480a4e9507dfc8911/FLAG755aab067 [2024-10-16 23:22:33,059 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8e35f255d/f926783c4f864a9480a4e9507dfc8911 [2024-10-16 23:22:33,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-16 23:22:33,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-16 23:22:33,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-16 23:22:33,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-16 23:22:33,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-16 23:22:33,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6c678d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33, skipping insertion in model container [2024-10-16 23:22:33,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-16 23:22:33,534 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-12.i[30241,30254] [2024-10-16 23:22:33,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 23:22:33,571 INFO L200 MainTranslator]: Completed pre-run [2024-10-16 23:22:33,613 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-12.i[30241,30254] [2024-10-16 23:22:33,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 23:22:33,659 INFO L204 MainTranslator]: Completed translation [2024-10-16 23:22:33,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33 WrapperNode [2024-10-16 23:22:33,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-16 23:22:33,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-16 23:22:33,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-16 23:22:33,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-16 23:22:33,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,713 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-10-16 23:22:33,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-16 23:22:33,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-16 23:22:33,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-16 23:22:33,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-16 23:22:33,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-16 23:22:33,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-16 23:22:33,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-16 23:22:33,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-16 23:22:33,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (1/1) ... [2024-10-16 23:22:33,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 23:22:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:33,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-16 23:22:33,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-16 23:22:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-16 23:22:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-16 23:22:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-16 23:22:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-16 23:22:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-16 23:22:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-16 23:22:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-16 23:22:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-16 23:22:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-16 23:22:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-16 23:22:33,848 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-16 23:22:33,966 INFO L238 CfgBuilder]: Building ICFG [2024-10-16 23:22:33,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-16 23:22:34,156 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-16 23:22:34,156 INFO L287 CfgBuilder]: Performing block encoding [2024-10-16 23:22:34,271 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-16 23:22:34,271 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-16 23:22:34,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:34 BoogieIcfgContainer [2024-10-16 23:22:34,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-16 23:22:34,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-16 23:22:34,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-16 23:22:34,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-16 23:22:34,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:22:33" (1/3) ... [2024-10-16 23:22:34,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a99043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:34, skipping insertion in model container [2024-10-16 23:22:34,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:33" (2/3) ... [2024-10-16 23:22:34,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a99043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:34, skipping insertion in model container [2024-10-16 23:22:34,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:34" (3/3) ... [2024-10-16 23:22:34,280 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-12.i [2024-10-16 23:22:34,294 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-16 23:22:34,295 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-16 23:22:34,295 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-16 23:22:34,330 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-16 23:22:34,384 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 23:22:34,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 23:22:34,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:34,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-16 23:22:34,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-16 23:22:34,480 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 23:22:34,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:34,503 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-16 23:22:34,512 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e08830c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-16 23:22:34,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-16 23:22:35,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:35,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:35,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1703157173, now seen corresponding path program 1 times [2024-10-16 23:22:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:35,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089948094] [2024-10-16 23:22:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:35,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:35,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:35,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089948094] [2024-10-16 23:22:35,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089948094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 23:22:35,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 23:22:35,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-16 23:22:35,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766066328] [2024-10-16 23:22:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 23:22:35,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-16 23:22:35,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:35,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-16 23:22:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-16 23:22:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:35,470 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:35,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:35,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:35,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-16 23:22:35,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:35,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:35,535 INFO L85 PathProgramCache]: Analyzing trace with hash 311074172, now seen corresponding path program 1 times [2024-10-16 23:22:35,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:35,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129692478] [2024-10-16 23:22:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:35,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:35,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129692478] [2024-10-16 23:22:35,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129692478] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:35,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53806557] [2024-10-16 23:22:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:35,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:35,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:35,685 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:35,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-16 23:22:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:35,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-16 23:22:35,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:35,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:22:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:35,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53806557] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:22:35,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:22:35,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-16 23:22:35,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055607160] [2024-10-16 23:22:35,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:22:35,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-16 23:22:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:35,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-16 23:22:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-16 23:22:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:35,883 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:35,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:35,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:35,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:35,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:36,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-16 23:22:36,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-16 23:22:36,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:36,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1499777035, now seen corresponding path program 2 times [2024-10-16 23:22:36,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:36,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482963494] [2024-10-16 23:22:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:36,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:36,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482963494] [2024-10-16 23:22:36,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482963494] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:36,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507429193] [2024-10-16 23:22:36,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-16 23:22:36,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:36,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:36,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:36,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-16 23:22:36,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-16 23:22:36,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:22:36,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-16 23:22:36,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:36,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:22:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:36,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507429193] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:22:36,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:22:36,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-16 23:22:36,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067918821] [2024-10-16 23:22:36,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:22:36,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-16 23:22:36,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:36,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-16 23:22:36,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-16 23:22:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:36,716 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:36,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:36,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:36,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:36,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:36,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-16 23:22:37,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:37,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:37,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:37,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1238457173, now seen corresponding path program 3 times [2024-10-16 23:22:37,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:37,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170555442] [2024-10-16 23:22:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:37,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:37,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:37,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170555442] [2024-10-16 23:22:37,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170555442] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:37,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100881848] [2024-10-16 23:22:37,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-16 23:22:37,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:37,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:37,423 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:37,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-16 23:22:37,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-16 23:22:37,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:22:37,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-16 23:22:37,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:37,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:22:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:37,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100881848] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:22:37,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:22:37,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-10-16 23:22:37,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011175752] [2024-10-16 23:22:37,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:22:37,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-16 23:22:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:37,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-16 23:22:37,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-10-16 23:22:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:37,977 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:37,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:37,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:37,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:37,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:37,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:38,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-16 23:22:38,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:38,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:38,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash 66258411, now seen corresponding path program 4 times [2024-10-16 23:22:38,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:38,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060808458] [2024-10-16 23:22:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:39,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060808458] [2024-10-16 23:22:39,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060808458] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:39,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150261886] [2024-10-16 23:22:39,393 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-16 23:22:39,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:39,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:39,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:39,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-16 23:22:39,535 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-16 23:22:39,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:22:39,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-16 23:22:39,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:39,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1396 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2024-10-16 23:22:39,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-16 23:22:39,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150261886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 23:22:39,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-16 23:22:39,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [25] total 38 [2024-10-16 23:22:39,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523309031] [2024-10-16 23:22:39,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 23:22:39,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-16 23:22:39,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:39,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-16 23:22:39,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-10-16 23:22:39,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:39,922 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:39,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:39,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:39,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:39,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:39,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:39,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:40,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:40,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-16 23:22:40,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:40,382 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:40,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1482468547, now seen corresponding path program 1 times [2024-10-16 23:22:40,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:40,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474622478] [2024-10-16 23:22:40,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:40,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1222 backedges. 0 proven. 1222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:41,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:41,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474622478] [2024-10-16 23:22:41,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474622478] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:41,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319392269] [2024-10-16 23:22:41,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:41,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:41,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:41,092 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:41,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-16 23:22:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:41,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-16 23:22:41,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1222 backedges. 1012 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-16 23:22:41,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-16 23:22:41,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319392269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 23:22:41,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-16 23:22:41,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [25] total 38 [2024-10-16 23:22:41,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255961215] [2024-10-16 23:22:41,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 23:22:41,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-16 23:22:41,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:41,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-16 23:22:41,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-10-16 23:22:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:41,594 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:41,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:41,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:41,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:41,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:41,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:41,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:41,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:41,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:41,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:41,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-16 23:22:42,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:42,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:42,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash -910794965, now seen corresponding path program 1 times [2024-10-16 23:22:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:42,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013185320] [2024-10-16 23:22:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:42,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 0 proven. 673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:42,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:42,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013185320] [2024-10-16 23:22:42,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013185320] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:42,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149081975] [2024-10-16 23:22:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:42,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:42,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:42,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:42,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-16 23:22:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:42,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-16 23:22:42,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 0 proven. 673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:42,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:22:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 0 proven. 673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:43,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149081975] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:22:43,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:22:43,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2024-10-16 23:22:43,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755065756] [2024-10-16 23:22:43,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:22:43,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-16 23:22:43,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:43,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-16 23:22:43,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2024-10-16 23:22:43,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:43,276 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:43,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.9655172413793105) internal successors, (144), 29 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:43,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:43,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:22:43,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-16 23:22:43,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-16 23:22:43,626 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:22:43,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:22:43,627 INFO L85 PathProgramCache]: Analyzing trace with hash -550847317, now seen corresponding path program 2 times [2024-10-16 23:22:43,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:22:43,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58412550] [2024-10-16 23:22:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:22:43,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:22:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:22:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:48,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:22:48,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58412550] [2024-10-16 23:22:48,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58412550] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:22:48,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676530889] [2024-10-16 23:22:48,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-16 23:22:48,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:22:48,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:22:48,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:22:48,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-16 23:22:48,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-16 23:22:48,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:22:48,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-10-16 23:22:48,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:22:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 91 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:52,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:22:59,062 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:22:59,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676530889] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:22:59,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:22:59,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-10-16 23:22:59,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995213849] [2024-10-16 23:22:59,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:22:59,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-10-16 23:22:59,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:22:59,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-10-16 23:22:59,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2509, Invalid=25883, Unknown=0, NotChecked=0, Total=28392 [2024-10-16 23:22:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:22:59,077 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:22:59,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.029585798816568) internal successors, (343), 168 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:22:59,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:23:54,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:23:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2024-10-16 23:23:54,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-16 23:23:55,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:23:55,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:23:55,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:23:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1834839595, now seen corresponding path program 3 times [2024-10-16 23:23:55,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:23:55,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670345871] [2024-10-16 23:23:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:23:55,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:23:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:23:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:23:59,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:23:59,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670345871] [2024-10-16 23:23:59,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670345871] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:23:59,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894022521] [2024-10-16 23:23:59,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-16 23:23:59,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:23:59,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:23:59,008 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 23:23:59,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-16 23:23:59,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-10-16 23:23:59,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:23:59,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-10-16 23:23:59,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:24:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 78 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:24:03,471 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:24:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:24:09,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894022521] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:24:09,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:24:09,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-10-16 23:24:09,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172058472] [2024-10-16 23:24:09,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:24:09,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-10-16 23:24:09,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:24:09,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-10-16 23:24:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2436, Invalid=25956, Unknown=0, NotChecked=0, Total=28392 [2024-10-16 23:24:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:24:09,287 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:24:09,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.029585798816568) internal successors, (343), 168 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 183 states. [2024-10-16 23:24:09,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:26:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:26:01,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2024-10-16 23:26:01,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-10-16 23:26:01,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-16 23:26:01,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:26:01,929 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:26:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash 957680789, now seen corresponding path program 1 times [2024-10-16 23:26:01,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:26:01,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:26:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 23:26:01,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 23:26:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 23:26:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash 394445897, now seen corresponding path program 1 times [2024-10-16 23:26:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:26:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:26:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 23:26:02,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 23:26:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 23:26:02,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:26:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash -663325525, now seen corresponding path program 4 times [2024-10-16 23:26:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:26:02,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848842731] [2024-10-16 23:26:02,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:26:02,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:26:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:26:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:26:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:26:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848842731] [2024-10-16 23:26:05,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848842731] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:26:05,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555404814] [2024-10-16 23:26:05,813 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-16 23:26:05,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:26:05,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:26:05,814 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) [2024-10-16 23:26:05,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-16 23:26:05,909 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-16 23:26:05,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:26:05,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-10-16 23:26:05,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:26:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 91 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:26:10,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:26:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:26:15,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555404814] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:26:15,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:26:15,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-10-16 23:26:15,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661628511] [2024-10-16 23:26:15,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:26:15,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-10-16 23:26:15,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:26:15,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-10-16 23:26:15,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2473, Invalid=25919, Unknown=0, NotChecked=0, Total=28392 [2024-10-16 23:26:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:26:15,905 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:26:15,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.029585798816568) internal successors, (343), 168 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:26:15,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2024-10-16 23:26:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:27:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:27:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:27:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:27:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:27:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:27:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:27:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:27:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2024-10-16 23:27:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2024-10-16 23:27:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 235 states. [2024-10-16 23:27:46,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-16 23:27:46,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2024-10-16 23:27:46,847 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:27:46,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1413049934, now seen corresponding path program 1 times [2024-10-16 23:27:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:27:46,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:27:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 23:27:46,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 23:27:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 23:27:46,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:27:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1013449941, now seen corresponding path program 5 times [2024-10-16 23:27:46,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:27:46,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828931661] [2024-10-16 23:27:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:27:46,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:27:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:27:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:27:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:27:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828931661] [2024-10-16 23:27:50,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828931661] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:27:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068866692] [2024-10-16 23:27:50,605 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-16 23:27:50,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:27:50,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:27:50,609 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) [2024-10-16 23:27:50,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-16 23:27:50,703 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-10-16 23:27:50,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:27:50,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-10-16 23:27:50,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:27:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 78 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:27:55,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:28:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:28:00,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068866692] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:28:00,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:28:00,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-10-16 23:28:00,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609559818] [2024-10-16 23:28:00,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:28:00,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-10-16 23:28:00,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:28:00,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-10-16 23:28:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2507, Invalid=25885, Unknown=0, NotChecked=0, Total=28392 [2024-10-16 23:28:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:28:00,646 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:28:00,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.029585798816568) internal successors, (343), 168 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 273 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 177 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 235 states. [2024-10-16 23:28:00,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:31:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 328 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 236 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2024-10-16 23:31:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-10-16 23:31:08,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-16 23:31:08,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:31:08,207 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 23:31:08,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 23:31:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1852596767, now seen corresponding path program 6 times [2024-10-16 23:31:08,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 23:31:08,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856355844] [2024-10-16 23:31:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 23:31:08,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 23:31:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 23:31:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:31:11,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 23:31:11,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856355844] [2024-10-16 23:31:11,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856355844] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 23:31:11,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385759594] [2024-10-16 23:31:11,531 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-16 23:31:11,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 23:31:11,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 23:31:11,532 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) [2024-10-16 23:31:11,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-16 23:31:11,628 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-10-16 23:31:11,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 23:31:11,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-10-16 23:31:11,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 23:31:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 78 proven. 693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:31:15,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 23:31:21,219 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 23:31:21,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385759594] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 23:31:21,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 23:31:21,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 168 [2024-10-16 23:31:21,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149729321] [2024-10-16 23:31:21,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 23:31:21,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2024-10-16 23:31:21,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 23:31:21,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2024-10-16 23:31:21,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2452, Invalid=25940, Unknown=0, NotChecked=0, Total=28392 [2024-10-16 23:31:21,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 23:31:21,224 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 23:31:21,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 169 states, 169 states have (on average 2.029585798816568) internal successors, (343), 168 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 328 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 236 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2024-10-16 23:31:21,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15