./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/25_stack.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -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-ext/25_stack.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 cf3bc75facf298f845d28de033983b6b167a38358df8a7e4c589353ba4656864 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking SLEEP_SET -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-18 11:05:48,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-18 11:05:48,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-18 11:05:48,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-18 11:05:48,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-18 11:05:48,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-18 11:05:48,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-18 11:05:48,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-18 11:05:48,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-18 11:05:48,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-18 11:05:48,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-18 11:05:48,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-18 11:05:48,764 INFO L153 SettingsManager]: * Use SBE=true [2024-10-18 11:05:48,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-18 11:05:48,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-18 11:05:48,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-18 11:05:48,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-18 11:05:48,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-18 11:05:48,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-18 11:05:48,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-18 11:05:48,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-18 11:05:48,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-18 11:05:48,772 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-18 11:05:48,772 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-18 11:05:48,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-18 11:05:48,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-18 11:05:48,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-18 11:05:48,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-18 11:05:48,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-18 11:05:48,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-18 11:05:48,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 11:05:48,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-18 11:05:48,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-18 11:05:48,775 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-18 11:05:48,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-18 11:05:48,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-18 11:05:48,776 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-18 11:05:48,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-18 11:05:48,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-18 11:05:48,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-18 11:05:48,778 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-18 11:05:48,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf3bc75facf298f845d28de033983b6b167a38358df8a7e4c589353ba4656864 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> SLEEP_SET [2024-10-18 11:05:49,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-18 11:05:49,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-18 11:05:49,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-18 11:05:49,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-18 11:05:49,102 INFO L274 PluginConnector]: CDTParser initialized [2024-10-18 11:05:49,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/25_stack.i [2024-10-18 11:05:50,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-18 11:05:50,745 INFO L384 CDTParser]: Found 1 translation units. [2024-10-18 11:05:50,746 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack.i [2024-10-18 11:05:50,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a77254d7f/630353957d404ce89bb5c9a0576174be/FLAGf64c4a189 [2024-10-18 11:05:51,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a77254d7f/630353957d404ce89bb5c9a0576174be [2024-10-18 11:05:51,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-18 11:05:51,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-18 11:05:51,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-18 11:05:51,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-18 11:05:51,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-18 11:05:51,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794d4291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51, skipping insertion in model container [2024-10-18 11:05:51,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-18 11:05:51,490 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-ext/25_stack.i[31168,31181] [2024-10-18 11:05:51,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 11:05:51,519 INFO L200 MainTranslator]: Completed pre-run [2024-10-18 11:05:51,570 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-ext/25_stack.i[31168,31181] [2024-10-18 11:05:51,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-18 11:05:51,620 INFO L204 MainTranslator]: Completed translation [2024-10-18 11:05:51,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51 WrapperNode [2024-10-18 11:05:51,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-18 11:05:51,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-18 11:05:51,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-18 11:05:51,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-18 11:05:51,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,680 INFO L138 Inliner]: procedures = 178, calls = 33, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 173 [2024-10-18 11:05:51,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-18 11:05:51,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-18 11:05:51,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-18 11:05:51,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-18 11:05:51,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-18 11:05:51,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-18 11:05:51,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-18 11:05:51,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-18 11:05:51,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (1/1) ... [2024-10-18 11:05:51,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-18 11:05:51,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:05:51,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-18 11:05:51,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-18 11:05:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-18 11:05:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-18 11:05:51,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-18 11:05:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-18 11:05:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-18 11:05:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-18 11:05:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-18 11:05:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-18 11:05:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-18 11:05:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-18 11:05:51,809 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-18 11:05:51,920 INFO L238 CfgBuilder]: Building ICFG [2024-10-18 11:05:51,922 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-18 11:05:52,220 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-18 11:05:52,220 INFO L287 CfgBuilder]: Performing block encoding [2024-10-18 11:05:52,507 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-18 11:05:52,507 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-18 11:05:52,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 11:05:52 BoogieIcfgContainer [2024-10-18 11:05:52,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-18 11:05:52,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-18 11:05:52,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-18 11:05:52,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-18 11:05:52,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.10 11:05:51" (1/3) ... [2024-10-18 11:05:52,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc6c291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 11:05:52, skipping insertion in model container [2024-10-18 11:05:52,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.10 11:05:51" (2/3) ... [2024-10-18 11:05:52,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc6c291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.10 11:05:52, skipping insertion in model container [2024-10-18 11:05:52,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.10 11:05:52" (3/3) ... [2024-10-18 11:05:52,521 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack.i [2024-10-18 11:05:52,538 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-18 11:05:52,538 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-18 11:05:52,538 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-18 11:05:52,593 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-18 11:05:52,635 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 11:05:52,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 11:05:52,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:05:52,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 11:05:52,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-18 11:05:52,720 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 11:05:52,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:52,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-10-18 11:05:52,747 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;@78f57769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 11:05:52,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-18 11:05:53,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:05:53,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1916175070, now seen corresponding path program 1 times [2024-10-18 11:05:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:53,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258312815] [2024-10-18 11:05:53,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:53,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:53,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:53,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258312815] [2024-10-18 11:05:53,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258312815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:53,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:53,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 11:05:53,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555501485] [2024-10-18 11:05:53,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:53,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 11:05:53,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:53,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 11:05:53,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 11:05:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:53,923 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:53,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:53,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:53,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:53,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-18 11:05:53,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:05:53,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:53,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1016983088, now seen corresponding path program 1 times [2024-10-18 11:05:53,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815670086] [2024-10-18 11:05:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:53,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:54,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815670086] [2024-10-18 11:05:54,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815670086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:54,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:54,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:05:54,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091390645] [2024-10-18 11:05:54,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:54,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 11:05:54,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:54,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 11:05:54,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-18 11:05:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:54,152 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:54,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:54,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:54,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:54,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:54,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-18 11:05:54,322 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:05:54,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:54,323 INFO L85 PathProgramCache]: Analyzing trace with hash 793455298, now seen corresponding path program 1 times [2024-10-18 11:05:54,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:54,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669401533] [2024-10-18 11:05:54,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:54,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:54,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:54,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:54,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669401533] [2024-10-18 11:05:54,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669401533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:54,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:54,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-18 11:05:54,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788931953] [2024-10-18 11:05:54,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:54,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-18 11:05:54,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:54,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-18 11:05:54,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-18 11:05:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:54,677 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:54,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:54,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:54,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:54,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:55,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-18 11:05:55,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-18 11:05:55,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-18 11:05:55,602 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-18 11:05:55,606 INFO L312 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2024-10-18 11:05:55,609 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 11:05:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 11:05:55,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:05:55,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 11:05:55,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-10-18 11:05:55,665 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 11:05:55,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:55,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 11:05:55,666 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;@78f57769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 11:05:55,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-18 11:05:56,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:56,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1096711092, now seen corresponding path program 1 times [2024-10-18 11:05:56,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:56,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020881170] [2024-10-18 11:05:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:56,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:56,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020881170] [2024-10-18 11:05:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020881170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:56,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:56,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 11:05:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772410293] [2024-10-18 11:05:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:56,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 11:05:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:56,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 11:05:56,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 11:05:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:56,086 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:56,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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) [2024-10-18 11:05:56,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:56,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-18 11:05:56,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:56,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1931812542, now seen corresponding path program 1 times [2024-10-18 11:05:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:56,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576985842] [2024-10-18 11:05:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:56,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576985842] [2024-10-18 11:05:56,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576985842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:56,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:56,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:05:56,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836340215] [2024-10-18 11:05:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:56,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 11:05:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 11:05:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-18 11:05:56,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:56,221 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:56,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:56,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:56,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:56,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-18 11:05:56,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:56,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1993620688, now seen corresponding path program 1 times [2024-10-18 11:05:56,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:56,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435823027] [2024-10-18 11:05:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:56,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:56,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:56,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:56,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435823027] [2024-10-18 11:05:56,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435823027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:56,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:56,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-18 11:05:56,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803081060] [2024-10-18 11:05:56,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:56,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-18 11:05:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-18 11:05:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-18 11:05:56,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:56,643 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:56,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:56,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:56,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:56,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:56,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:56,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:56,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:05:56,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-18 11:05:56,807 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:56,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:56,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1993619727, now seen corresponding path program 1 times [2024-10-18 11:05:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:56,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162014397] [2024-10-18 11:05:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:56,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 11:05:56,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 11:05:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 11:05:56,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 11:05:56,877 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 11:05:56,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-10-18 11:05:56,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-18 11:05:56,882 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-18 11:05:56,883 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-10-18 11:05:56,883 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 11:05:56,883 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-18 11:05:56,913 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-18 11:05:56,915 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 11:05:56,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 11:05:56,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:05:56,918 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 11:05:56,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-10-18 11:05:56,963 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 11:05:56,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:56,965 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-18 11:05:56,966 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;@78f57769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 11:05:56,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-18 11:05:58,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:58,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1197250165, now seen corresponding path program 1 times [2024-10-18 11:05:58,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:58,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756903865] [2024-10-18 11:05:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:58,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 11:05:58,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:58,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756903865] [2024-10-18 11:05:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756903865] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:58,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 11:05:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439581020] [2024-10-18 11:05:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:58,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 11:05:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 11:05:58,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 11:05:58,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:58,302 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:58,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:58,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:58,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-18 11:05:58,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:58,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:58,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1918422183, now seen corresponding path program 1 times [2024-10-18 11:05:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:58,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634193988] [2024-10-18 11:05:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:58,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 11:05:58,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:58,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634193988] [2024-10-18 11:05:58,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634193988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:58,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:58,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:05:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066473530] [2024-10-18 11:05:58,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:58,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 11:05:58,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 11:05:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-18 11:05:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:58,458 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:58,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:58,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:58,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:58,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-18 11:05:58,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:58,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash 919827545, now seen corresponding path program 1 times [2024-10-18 11:05:58,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762959064] [2024-10-18 11:05:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:58,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762959064] [2024-10-18 11:05:58,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762959064] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:05:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249077100] [2024-10-18 11:05:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:58,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:05:58,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:05:58,875 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) [2024-10-18 11:05:58,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-18 11:05:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:58,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-18 11:05:58,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:05:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:59,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 11:05:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249077100] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 11:05:59,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 11:05:59,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-18 11:05:59,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816526098] [2024-10-18 11:05:59,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 11:05:59,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-18 11:05:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-18 11:05:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-18 11:05:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:59,111 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:59,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:59,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:59,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:59,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:59,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-18 11:05:59,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:05:59,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:59,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1189726442, now seen corresponding path program 1 times [2024-10-18 11:05:59,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:59,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744911504] [2024-10-18 11:05:59,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:59,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 11:05:59,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:59,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744911504] [2024-10-18 11:05:59,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744911504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:59,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:05:59,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:05:59,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973322916] [2024-10-18 11:05:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:59,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:05:59,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:59,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:05:59,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:05:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:59,532 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:59,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:59,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:59,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-18 11:05:59,634 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:05:59,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:05:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1189725481, now seen corresponding path program 1 times [2024-10-18 11:05:59,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:05:59,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673725221] [2024-10-18 11:05:59,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:59,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:05:59,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:59,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:05:59,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673725221] [2024-10-18 11:05:59,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673725221] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:05:59,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450160586] [2024-10-18 11:05:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:05:59,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:05:59,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:05:59,795 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) [2024-10-18 11:05:59,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-18 11:05:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:05:59,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 11:05:59,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:05:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:05:59,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 11:05:59,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450160586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:05:59,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 11:05:59,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-10-18 11:05:59,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825182420] [2024-10-18 11:05:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:05:59,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-18 11:05:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:05:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-18 11:05:59,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-18 11:05:59,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:05:59,992 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:05:59,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:05:59,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:05:59,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:05:59,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:00,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:00,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:00,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-18 11:06:00,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-18 11:06:00,400 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:06:00,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:00,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1234987523, now seen corresponding path program 1 times [2024-10-18 11:06:00,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:00,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553926390] [2024-10-18 11:06:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:00,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 11:06:00,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:00,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553926390] [2024-10-18 11:06:00,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553926390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:00,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:00,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-18 11:06:00,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451541538] [2024-10-18 11:06:00,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:00,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-18 11:06:00,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-18 11:06:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-18 11:06:00,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:00,704 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:00,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:00,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:00,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:00,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:00,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:00,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:00,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:06:01,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-18 11:06:01,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:06:01,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:01,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1688982391, now seen corresponding path program 1 times [2024-10-18 11:06:01,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:01,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707037902] [2024-10-18 11:06:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:01,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 11:06:01,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:01,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707037902] [2024-10-18 11:06:01,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707037902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:01,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:01,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:06:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888364756] [2024-10-18 11:06:01,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:01,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:06:01,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:01,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:06:01,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:06:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:01,358 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:01,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:01,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:01,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:06:01,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:06:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-18 11:06:01,564 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:06:01,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1178448214, now seen corresponding path program 1 times [2024-10-18 11:06:01,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:01,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058808094] [2024-10-18 11:06:01,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:01,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:01,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058808094] [2024-10-18 11:06:01,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058808094] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:06:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109599149] [2024-10-18 11:06:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:01,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:01,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:01,667 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) [2024-10-18 11:06:01,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-18 11:06:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:01,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 11:06:01,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:06:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:01,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 11:06:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:01,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109599149] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 11:06:01,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 11:06:01,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-18 11:06:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966480989] [2024-10-18 11:06:01,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 11:06:01,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-18 11:06:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:01,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-18 11:06:01,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-18 11:06:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:01,943 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:01,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:01,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 11:06:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:02,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-18 11:06:02,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-18 11:06:02,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:06:02,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:02,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1501258418, now seen corresponding path program 1 times [2024-10-18 11:06:02,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:02,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152390401] [2024-10-18 11:06:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:02,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-18 11:06:02,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:02,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152390401] [2024-10-18 11:06:02,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152390401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:02,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:02,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:06:02,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806361652] [2024-10-18 11:06:02,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:02,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:06:02,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:06:02,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:06:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:02,665 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:02,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:02,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:02,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:02,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-18 11:06:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:02,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:02,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:02,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-18 11:06:02,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-18 11:06:02,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1501259379, now seen corresponding path program 1 times [2024-10-18 11:06:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:02,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247926584] [2024-10-18 11:06:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:02,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 11:06:02,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-18 11:06:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-18 11:06:02,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-18 11:06:02,836 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-18 11:06:02,836 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-10-18 11:06:02,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-18 11:06:02,838 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-18 11:06:02,838 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2024-10-18 11:06:02,838 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-18 11:06:02,839 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-18 11:06:02,882 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-18 11:06:02,885 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-18 11:06:02,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-18 11:06:02,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:02,887 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-18 11:06:02,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-10-18 11:06:02,933 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-18 11:06:02,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:02,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-10-18 11:06:02,934 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;@78f57769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-18 11:06:02,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-18 11:06:05,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:05,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash -656206198, now seen corresponding path program 1 times [2024-10-18 11:06:05,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:05,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107404353] [2024-10-18 11:06:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:05,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 11:06:05,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:05,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107404353] [2024-10-18 11:06:05,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107404353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:05,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:05,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-18 11:06:05,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671448862] [2024-10-18 11:06:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:05,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 11:06:05,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:05,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 11:06:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 11:06:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:05,323 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:05,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:05,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:05,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-18 11:06:05,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:05,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:05,422 INFO L85 PathProgramCache]: Analyzing trace with hash -814396679, now seen corresponding path program 1 times [2024-10-18 11:06:05,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:05,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321809417] [2024-10-18 11:06:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:05,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 11:06:05,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:05,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321809417] [2024-10-18 11:06:05,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321809417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:05,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:05,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:06:05,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765626258] [2024-10-18 11:06:05,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:05,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-18 11:06:05,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-18 11:06:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-18 11:06:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:05,513 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:05,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:05,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:05,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:06,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-18 11:06:06,046 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:06,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:06,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2099647570, now seen corresponding path program 1 times [2024-10-18 11:06:06,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:06,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862630943] [2024-10-18 11:06:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:06,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:06,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:06,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862630943] [2024-10-18 11:06:06,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862630943] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:06:06,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564672799] [2024-10-18 11:06:06,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:06,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:06,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:06,120 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) [2024-10-18 11:06:06,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-18 11:06:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:06,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-18 11:06:06,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:06:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:06,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 11:06:06,390 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:06,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564672799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 11:06:06,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 11:06:06,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-18 11:06:06,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236390203] [2024-10-18 11:06:06,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 11:06:06,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-18 11:06:06,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-18 11:06:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-18 11:06:06,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:06,397 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:06,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 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) [2024-10-18 11:06:06,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:06,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:06,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:06,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-18 11:06:06,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:06,739 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:06,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:06,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2098228978, now seen corresponding path program 1 times [2024-10-18 11:06:06,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:06,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097939872] [2024-10-18 11:06:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:06,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 11:06:06,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:06,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097939872] [2024-10-18 11:06:06,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097939872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:06,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:06,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-18 11:06:06,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851425671] [2024-10-18 11:06:06,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:06,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:06:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:06,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:06:06,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:06:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:06,873 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:06,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:06,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:06,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:06,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:06,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:07,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-18 11:06:07,059 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:07,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:07,060 INFO L85 PathProgramCache]: Analyzing trace with hash 863964084, now seen corresponding path program 1 times [2024-10-18 11:06:07,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:07,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140937676] [2024-10-18 11:06:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:07,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-18 11:06:07,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:07,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140937676] [2024-10-18 11:06:07,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140937676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:07,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:07,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:06:07,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608533412] [2024-10-18 11:06:07,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:07,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:06:07,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:07,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:06:07,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:06:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:07,287 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:07,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:07,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:07,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:07,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:07,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:07,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-18 11:06:08,025 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:08,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:08,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1735754901, now seen corresponding path program 1 times [2024-10-18 11:06:08,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:08,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428223857] [2024-10-18 11:06:08,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:08,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-18 11:06:08,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:08,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428223857] [2024-10-18 11:06:08,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428223857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:08,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:08,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-18 11:06:08,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129562370] [2024-10-18 11:06:08,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:08,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-18 11:06:08,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:08,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-18 11:06:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-18 11:06:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:08,194 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:08,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:08,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:08,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:08,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:08,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-18 11:06:08,611 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:08,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1765191579, now seen corresponding path program 1 times [2024-10-18 11:06:08,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291689155] [2024-10-18 11:06:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 33 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-18 11:06:08,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:08,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291689155] [2024-10-18 11:06:08,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291689155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:06:08,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210582376] [2024-10-18 11:06:08,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:08,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:08,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:08,885 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) [2024-10-18 11:06:08,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-18 11:06:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:09,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 11:06:09,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:06:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 11:06:09,167 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 11:06:09,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210582376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:09,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 11:06:09,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-18 11:06:09,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884863653] [2024-10-18 11:06:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:09,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-18 11:06:09,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-18 11:06:09,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-18 11:06:09,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:09,176 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:09,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:09,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:09,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:09,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:09,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:09,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:09,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:09,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:09,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-18 11:06:09,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:09,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:09,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:09,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1388804586, now seen corresponding path program 1 times [2024-10-18 11:06:09,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:09,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065120564] [2024-10-18 11:06:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:09,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:09,882 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 11:06:09,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:09,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065120564] [2024-10-18 11:06:09,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065120564] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:06:09,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594999225] [2024-10-18 11:06:09,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:09,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:09,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:09,885 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) [2024-10-18 11:06:09,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-18 11:06:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:10,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-18 11:06:10,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:06:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-18 11:06:10,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 11:06:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594999225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:10,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 11:06:10,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2024-10-18 11:06:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946687103] [2024-10-18 11:06:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:10,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-18 11:06:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:10,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-18 11:06:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-18 11:06:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:10,157 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:10,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:10,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:10,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:10,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-18 11:06:10,567 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,SelfDestructingSolverStorable24 [2024-10-18 11:06:10,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:10,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:10,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1335590518, now seen corresponding path program 1 times [2024-10-18 11:06:10,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:10,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919194453] [2024-10-18 11:06:10,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:10,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-18 11:06:10,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:10,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919194453] [2024-10-18 11:06:10,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919194453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:10,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:10,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-18 11:06:10,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292232761] [2024-10-18 11:06:10,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:10,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-18 11:06:10,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:10,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-18 11:06:10,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-18 11:06:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:10,899 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:10,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:10,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:10,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:10,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:06:11,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-18 11:06:11,426 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:11,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:11,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1919250832, now seen corresponding path program 1 times [2024-10-18 11:06:11,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:11,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35360238] [2024-10-18 11:06:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:11,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-18 11:06:11,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:11,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35360238] [2024-10-18 11:06:11,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35360238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:11,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:11,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:06:11,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057135202] [2024-10-18 11:06:11,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:11,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:06:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:11,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:06:11,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:06:11,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:11,562 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:11,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:11,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:11,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:11,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-18 11:06:11,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-18 11:06:13,098 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:13,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:13,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1876309150, now seen corresponding path program 1 times [2024-10-18 11:06:13,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:13,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141636985] [2024-10-18 11:06:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:13,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 38 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 11:06:13,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141636985] [2024-10-18 11:06:13,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141636985] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:06:13,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91223064] [2024-10-18 11:06:13,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:13,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:13,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:13,229 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) [2024-10-18 11:06:13,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-18 11:06:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:13,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-18 11:06:13,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:06:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 11:06:13,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-18 11:06:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-18 11:06:13,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91223064] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-18 11:06:13,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-18 11:06:13,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-18 11:06:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773864599] [2024-10-18 11:06:13,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-18 11:06:13,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-18 11:06:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:13,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-18 11:06:13,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-18 11:06:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:13,662 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:13,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 9 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:13,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:13,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:13,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:14,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:14,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-18 11:06:14,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-18 11:06:14,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:14,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:14,321 INFO L85 PathProgramCache]: Analyzing trace with hash -867158008, now seen corresponding path program 2 times [2024-10-18 11:06:14,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:14,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264094639] [2024-10-18 11:06:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 48 proven. 48 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-18 11:06:14,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264094639] [2024-10-18 11:06:14,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264094639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-18 11:06:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129622587] [2024-10-18 11:06:14,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-18 11:06:14,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-18 11:06:14,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-18 11:06:14,507 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) [2024-10-18 11:06:14,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-18 11:06:14,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-18 11:06:14,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-18 11:06:14,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-18 11:06:14,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-18 11:06:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-18 11:06:14,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-18 11:06:14,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129622587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:14,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-18 11:06:14,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2024-10-18 11:06:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475113576] [2024-10-18 11:06:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:14,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-18 11:06:14,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:14,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-18 11:06:14,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-18 11:06:14,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:14,758 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:14,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:14,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 11:06:26,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-18 11:06:26,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-18 11:06:26,313 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:26,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1699301615, now seen corresponding path program 1 times [2024-10-18 11:06:26,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:26,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923084720] [2024-10-18 11:06:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:26,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 648 proven. 0 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2024-10-18 11:06:26,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:26,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923084720] [2024-10-18 11:06:26,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923084720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:26,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:26,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-18 11:06:26,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455607950] [2024-10-18 11:06:26,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:26,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-18 11:06:26,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-18 11:06:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-18 11:06:26,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:26,848 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:26,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:26,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:26,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:26,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 11:06:26,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-18 11:06:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-18 11:06:30,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-18 11:06:30,109 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-18 11:06:30,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-18 11:06:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash 694747159, now seen corresponding path program 1 times [2024-10-18 11:06:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-18 11:06:30,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236027484] [2024-10-18 11:06:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-18 11:06:30,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-18 11:06:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-18 11:06:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2217 backedges. 1087 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2024-10-18 11:06:30,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-18 11:06:30,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236027484] [2024-10-18 11:06:30,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236027484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-18 11:06:30,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-18 11:06:30,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-18 11:06:30,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309490121] [2024-10-18 11:06:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-18 11:06:30,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-18 11:06:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-18 11:06:30,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-18 11:06:30,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-18 11:06:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-18 11:06:30,811 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-18 11:06:30,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-18 11:06:30,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.