./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --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/weaver/popl20-min-max-dec.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67ced8cbf918778cce3ae5cae291c50696df3950945fdf68713903c29ac269e1 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --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 [2024-10-17 12:37:01,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 12:37:01,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 12:37:01,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 12:37:01,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 12:37:01,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 12:37:01,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 12:37:01,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 12:37:01,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 12:37:01,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 12:37:01,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 12:37:01,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 12:37:01,218 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 12:37:01,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 12:37:01,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 12:37:01,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 12:37:01,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 12:37:01,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 12:37:01,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 12:37:01,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 12:37:01,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 12:37:01,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 12:37:01,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 12:37:01,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 12:37:01,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 12:37:01,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 12:37:01,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 12:37:01,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 12:37:01,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 12:37:01,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 12:37:01,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 12:37:01,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 12:37:01,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 12:37:01,225 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 12:37:01,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 12:37:01,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 12:37:01,226 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 12:37:01,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 12:37:01,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 12:37:01,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 12:37:01,226 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 12:37:01,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67ced8cbf918778cce3ae5cae291c50696df3950945fdf68713903c29ac269e1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> SLEEP_SET [2024-10-17 12:37:01,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 12:37:01,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 12:37:01,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 12:37:01,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 12:37:01,445 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 12:37:01,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2024-10-17 12:37:02,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 12:37:03,017 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 12:37:03,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2024-10-17 12:37:03,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/e7e1e10be/73f406203f234d8f96dab4753fc8be1e/FLAGe81d0963b [2024-10-17 12:37:03,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/e7e1e10be/73f406203f234d8f96dab4753fc8be1e [2024-10-17 12:37:03,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 12:37:03,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 12:37:03,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 12:37:03,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 12:37:03,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 12:37:03,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b0e424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03, skipping insertion in model container [2024-10-17 12:37:03,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 12:37:03,632 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c[3071,3084] [2024-10-17 12:37:03,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 12:37:03,646 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 12:37:03,664 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c[3071,3084] [2024-10-17 12:37:03,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 12:37:03,680 INFO L204 MainTranslator]: Completed translation [2024-10-17 12:37:03,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03 WrapperNode [2024-10-17 12:37:03,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 12:37:03,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 12:37:03,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 12:37:03,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 12:37:03,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,715 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-10-17 12:37:03,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 12:37:03,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 12:37:03,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 12:37:03,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 12:37:03,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 12:37:03,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 12:37:03,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 12:37:03,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 12:37:03,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (1/1) ... [2024-10-17 12:37:03,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 12:37:03,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:03,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 12:37:03,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 12:37:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 12:37:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 12:37:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 12:37:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 12:37:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 12:37:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-17 12:37:03,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-17 12:37:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-17 12:37:03,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-17 12:37:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 12:37:03,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 12:37:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-17 12:37:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-17 12:37:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 12:37:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 12:37:03,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 12:37:03,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 12:37:03,848 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 12:37:03,988 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 12:37:03,990 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 12:37:04,232 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 12:37:04,232 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 12:37:04,394 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 12:37:04,394 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-17 12:37:04,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 12:37:04 BoogieIcfgContainer [2024-10-17 12:37:04,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 12:37:04,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 12:37:04,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 12:37:04,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 12:37:04,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 12:37:03" (1/3) ... [2024-10-17 12:37:04,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd86409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 12:37:04, skipping insertion in model container [2024-10-17 12:37:04,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 12:37:03" (2/3) ... [2024-10-17 12:37:04,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd86409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 12:37:04, skipping insertion in model container [2024-10-17 12:37:04,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 12:37:04" (3/3) ... [2024-10-17 12:37:04,401 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-dec.wvr.c [2024-10-17 12:37:04,414 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 12:37:04,414 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 12:37:04,414 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 12:37:04,464 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-17 12:37:04,509 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 12:37:04,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 12:37:04,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:04,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 12:37:04,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 12:37:04,589 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 12:37:04,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:04,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 12:37:04,610 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;@65a7ef82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=SLEEP_SET, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 12:37:04,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-17 12:37:05,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:06,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:06,029 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:06,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash -244029565, now seen corresponding path program 1 times [2024-10-17 12:37:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 12:37:06,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:06,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 12:37:06,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 12:37:06,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 12:37:06,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 12:37:06,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:06,495 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:06,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:06,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:06,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,SelfDestructingSolverStorable0 [2024-10-17 12:37:06,554 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:06,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:06,655 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:06,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1418196441, now seen corresponding path program 1 times [2024-10-17 12:37:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:06,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:06,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:06,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:06,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2024-10-17 12:37:06,988 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:06,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 40 [2024-10-17 12:37:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 565391466, now seen corresponding path program 1 times [2024-10-17 12:37:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:09,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 12:37:09,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:09,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 12:37:09,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:09,393 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:09,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1816611673, now seen corresponding path program 1 times [2024-10-17 12:37:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:09,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 12:37:09,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:09,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 12:37:09,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:09,622 INFO L85 PathProgramCache]: Analyzing trace with hash -656874439, now seen corresponding path program 1 times [2024-10-17 12:37:09,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:09,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531047890] [2024-10-17 12:37:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:09,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-17 12:37:09,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:09,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531047890] [2024-10-17 12:37:09,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531047890] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:09,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747029393] [2024-10-17 12:37:09,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:09,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:09,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:09,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:09,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 12:37:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:09,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 12:37:09,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-17 12:37:10,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-17 12:37:10,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747029393] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:10,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:10,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-10-17 12:37:10,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935114865] [2024-10-17 12:37:10,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:10,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-17 12:37:10,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:10,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-17 12:37:10,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-17 12:37:10,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:10,133 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:10,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.066666666666666) internal successors, (106), 14 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:10,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:10,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:10,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 12:37:10,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-10-17 12:37:10,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:10,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:10,619 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:10,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:10,638 INFO L85 PathProgramCache]: Analyzing trace with hash 837336039, now seen corresponding path program 1 times [2024-10-17 12:37:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:10,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:10,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:10,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2024-10-17 12:37:10,927 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:10,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 40 [2024-10-17 12:37:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -88988848, now seen corresponding path program 1 times [2024-10-17 12:37:13,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:13,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 12:37:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:13,237 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 12:37:13,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:13,315 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:13,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1033850547, now seen corresponding path program 1 times [2024-10-17 12:37:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:13,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:13,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:13,772 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:13,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:13,773 INFO L85 PathProgramCache]: Analyzing trace with hash 176981916, now seen corresponding path program 2 times [2024-10-17 12:37:13,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:13,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042335405] [2024-10-17 12:37:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:13,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:14,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:14,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042335405] [2024-10-17 12:37:14,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042335405] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:14,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088512322] [2024-10-17 12:37:14,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 12:37:14,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:14,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:14,029 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:14,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 12:37:14,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-17 12:37:14,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:14,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-17 12:37:14,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:14,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-17 12:37:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-17 12:37:14,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 12:37:14,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088512322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 12:37:14,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 12:37:14,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2024-10-17 12:37:14,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76789925] [2024-10-17 12:37:14,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 12:37:14,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 12:37:14,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:14,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 12:37:14,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-17 12:37:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:14,208 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:14,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:14,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:14,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:14,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:15,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 12:37:15,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12,SelfDestructingSolverStorable9,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15 [2024-10-17 12:37:15,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:15,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:15,953 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:15,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:15,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1976677625, now seen corresponding path program 1 times [2024-10-17 12:37:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:15,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 12:37:16,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:16,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 12:37:16,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2024-10-17 12:37:16,329 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:16,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 40 [2024-10-17 12:37:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2045486092, now seen corresponding path program 1 times [2024-10-17 12:37:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:19,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 75 [2024-10-17 12:37:19,062 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:19,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 43 [2024-10-17 12:37:19,082 INFO L85 PathProgramCache]: Analyzing trace with hash 618995787, now seen corresponding path program 1 times [2024-10-17 12:37:19,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:19,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:19,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:19,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:19,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1421207449, now seen corresponding path program 3 times [2024-10-17 12:37:19,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:19,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373697902] [2024-10-17 12:37:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:19,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373697902] [2024-10-17 12:37:19,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373697902] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132081982] [2024-10-17 12:37:19,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 12:37:19,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:19,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:19,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:19,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 12:37:19,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-17 12:37:19,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:19,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-17 12:37:19,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-17 12:37:19,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 12:37:19,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132081982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 12:37:19,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 12:37:19,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 19 [2024-10-17 12:37:19,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903361452] [2024-10-17 12:37:19,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 12:37:19,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 12:37:19,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:19,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 12:37:19,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-17 12:37:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:19,923 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:19,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:19,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:19,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:19,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:19,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:20,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:20,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-17 12:37:20,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-10-17 12:37:20,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:20,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:20,737 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:20,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:20,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1590380789, now seen corresponding path program 1 times [2024-10-17 12:37:20,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:20,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:20,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 12:37:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:20,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-10-17 12:37:20,889 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:20,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2024-10-17 12:37:20,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1529846113, now seen corresponding path program 1 times [2024-10-17 12:37:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:21,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:21,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2024-10-17 12:37:21,177 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:21,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 40 [2024-10-17 12:37:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1208661034, now seen corresponding path program 1 times [2024-10-17 12:37:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:23,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:23,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2024-10-17 12:37:23,622 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:23,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 57 [2024-10-17 12:37:23,640 INFO L85 PathProgramCache]: Analyzing trace with hash -686744217, now seen corresponding path program 1 times [2024-10-17 12:37:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:23,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:23,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:23,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:23,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1626288739, now seen corresponding path program 4 times [2024-10-17 12:37:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:23,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089446036] [2024-10-17 12:37:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:23,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 50 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:24,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:24,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089446036] [2024-10-17 12:37:24,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089446036] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:24,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016504209] [2024-10-17 12:37:24,211 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 12:37:24,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:24,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:24,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:24,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 12:37:24,295 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 12:37:24,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:24,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-17 12:37:24,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 64 proven. 23 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 12:37:24,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 56 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-17 12:37:24,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016504209] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:24,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:24,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 9] total 34 [2024-10-17 12:37:24,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760514332] [2024-10-17 12:37:24,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:24,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 12:37:24,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:24,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 12:37:24,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=968, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 12:37:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:24,694 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:24,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.147058823529412) internal successors, (175), 34 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:24,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:24,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:24,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:24,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:24,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:30,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:31,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-17 12:37:31,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27,SelfDestructingSolverStorable28 [2024-10-17 12:37:31,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:31,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:31,248 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:31,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash 793964302, now seen corresponding path program 1 times [2024-10-17 12:37:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:31,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 12:37:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:31,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash -903448220, now seen corresponding path program 5 times [2024-10-17 12:37:31,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:31,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285104881] [2024-10-17 12:37:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:31,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 35 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:31,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:31,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285104881] [2024-10-17 12:37:31,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285104881] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:31,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540520750] [2024-10-17 12:37:31,903 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 12:37:31,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:31,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:31,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:31,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 12:37:32,092 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-10-17 12:37:32,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:32,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 12:37:32,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 85 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-17 12:37:32,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 85 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-17 12:37:32,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540520750] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:32,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:32,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10, 10] total 39 [2024-10-17 12:37:32,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066670301] [2024-10-17 12:37:32,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:32,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-10-17 12:37:32,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-10-17 12:37:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1343, Unknown=0, NotChecked=0, Total=1560 [2024-10-17 12:37:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:32,589 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:32,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.5) internal successors, (180), 39 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:32,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:32,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:32,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:32,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:32,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:32,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:33,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:33,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 12:37:33,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,SelfDestructingSolverStorable32,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:33,260 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:33,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:33,322 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:33,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1874850164, now seen corresponding path program 1 times [2024-10-17 12:37:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:33,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:33,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 12:37:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:33,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:33,364 INFO L85 PathProgramCache]: Analyzing trace with hash -82119801, now seen corresponding path program 6 times [2024-10-17 12:37:33,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:33,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087376244] [2024-10-17 12:37:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:33,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:33,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:33,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087376244] [2024-10-17 12:37:33,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087376244] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:33,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051223103] [2024-10-17 12:37:33,572 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-17 12:37:33,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:33,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:33,573 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:33,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-17 12:37:33,794 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-10-17 12:37:33,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:33,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-17 12:37:33,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 105 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:34,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 84 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:34,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051223103] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:34,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:34,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2024-10-17 12:37:34,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662246490] [2024-10-17 12:37:34,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:34,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-17 12:37:34,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:34,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-17 12:37:34,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-10-17 12:37:34,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:34,297 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:34,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.0) internal successors, (145), 28 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:34,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:34,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-17 12:37:35,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33,SelfDestructingSolverStorable34 [2024-10-17 12:37:35,104 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:35,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:35,169 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:35,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:35,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1022573428, now seen corresponding path program 1 times [2024-10-17 12:37:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:35,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:35,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 12:37:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 12:37:35,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:35,214 INFO L85 PathProgramCache]: Analyzing trace with hash -390742588, now seen corresponding path program 7 times [2024-10-17 12:37:35,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:35,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266901661] [2024-10-17 12:37:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:35,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-17 12:37:35,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:35,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266901661] [2024-10-17 12:37:35,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266901661] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:35,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102433025] [2024-10-17 12:37:35,700 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-17 12:37:35,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:35,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:35,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:35,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-17 12:37:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:35,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-17 12:37:35,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:35,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-10-17 12:37:35,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-17 12:37:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-17 12:37:35,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-17 12:37:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102433025] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:36,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:36,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 19 [2024-10-17 12:37:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929725117] [2024-10-17 12:37:36,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:36,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-17 12:37:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-17 12:37:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-10-17 12:37:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:36,661 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:36,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:36,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:36,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:36,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:42,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-17 12:37:43,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,SelfDestructingSolverStorable36,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:43,187 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:43,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:43,237 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:43,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1967265661, now seen corresponding path program 1 times [2024-10-17 12:37:43,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:43,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-17 12:37:43,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:43,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:43,484 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-17 12:37:43,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2033446550, now seen corresponding path program 8 times [2024-10-17 12:37:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:43,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830266853] [2024-10-17 12:37:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:43,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:44,016 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 116 proven. 73 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-17 12:37:44,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830266853] [2024-10-17 12:37:44,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830266853] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297316645] [2024-10-17 12:37:44,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 12:37:44,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:44,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:44,021 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 12:37:44,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-17 12:37:44,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 12:37:44,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:44,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 12:37:44,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-17 12:37:44,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-17 12:37:44,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297316645] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:44,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14, 14] total 47 [2024-10-17 12:37:44,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58587938] [2024-10-17 12:37:44,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:44,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-17 12:37:44,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:44,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-17 12:37:44,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=1882, Unknown=0, NotChecked=0, Total=2256 [2024-10-17 12:37:44,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:44,968 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:44,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.520833333333333) internal successors, (217), 47 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:44,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 12:37:46,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-17 12:37:46,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37,SelfDestructingSolverStorable38,SelfDestructingSolverStorable39 [2024-10-17 12:37:46,764 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:46,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:46,816 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:46,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2132378025, now seen corresponding path program 1 times [2024-10-17 12:37:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 12:37:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:46,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 12:37:46,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash -698183091, now seen corresponding path program 9 times [2024-10-17 12:37:46,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:46,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565678794] [2024-10-17 12:37:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:46,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 26 proven. 154 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-17 12:37:47,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:47,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565678794] [2024-10-17 12:37:47,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565678794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:47,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476810639] [2024-10-17 12:37:47,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 12:37:47,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:47,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:47,306 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) [2024-10-17 12:37:47,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-17 12:37:47,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-17 12:37:47,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:47,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 12:37:47,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 89 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-17 12:37:47,959 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 21 proven. 159 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-17 12:37:48,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476810639] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:48,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:48,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-10-17 12:37:48,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816380068] [2024-10-17 12:37:48,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:48,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-17 12:37:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:48,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-17 12:37:48,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2024-10-17 12:37:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:48,245 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:48,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.529411764705882) internal successors, (154), 33 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:48,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 12:37:48,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 12:37:52,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 12:37:53,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-17 12:37:53,192 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,SelfDestructingSolverStorable40,SelfDestructingSolverStorable41,SelfDestructingSolverStorable42 [2024-10-17 12:37:53,194 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:37:53,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:37:53,240 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:53,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:37:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2132378068, now seen corresponding path program 1 times [2024-10-17 12:37:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:53,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 12:37:53,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:53,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 12:37:53,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2024-10-17 12:37:53,667 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:37:53,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 40 [2024-10-17 12:37:55,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1551335554, now seen corresponding path program 1 times [2024-10-17 12:37:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:55,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 221 proven. 79 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-17 12:37:56,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:56,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 221 proven. 79 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-17 12:37:56,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:37:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1112325472, now seen corresponding path program 10 times [2024-10-17 12:37:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:37:56,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218322764] [2024-10-17 12:37:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:37:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:37:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:37:58,093 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 203 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:37:58,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:37:58,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218322764] [2024-10-17 12:37:58,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218322764] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:37:58,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128237800] [2024-10-17 12:37:58,094 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 12:37:58,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:37:58,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:37:58,095 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) [2024-10-17 12:37:58,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-17 12:37:58,236 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 12:37:58,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:37:58,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-17 12:37:58,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:37:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 42 proven. 436 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-17 12:37:59,491 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:37:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 42 proven. 32 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2024-10-17 12:37:59,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128237800] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:37:59,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:37:59,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 27, 6] total 71 [2024-10-17 12:37:59,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155974740] [2024-10-17 12:37:59,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:37:59,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-10-17 12:37:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:37:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-10-17 12:37:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=4545, Unknown=0, NotChecked=0, Total=4970 [2024-10-17 12:37:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:37:59,814 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:37:59,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.816901408450704) internal successors, (271), 71 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:37:59,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:37:59,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 12:37:59,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:38:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:38:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:38:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 12:38:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-10-17 12:38:52,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-17 12:38:52,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,SelfDestructingSolverStorable44,SelfDestructingSolverStorable45,SelfDestructingSolverStorable46,SelfDestructingSolverStorable47,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:38:52,248 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-17 12:38:52,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2024-10-17 12:38:52,298 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:38:52,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 23 [2024-10-17 12:38:52,308 INFO L85 PathProgramCache]: Analyzing trace with hash 204072888, now seen corresponding path program 1 times [2024-10-17 12:38:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:38:52,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:38:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:38:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 390 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:38:53,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:38:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:38:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:38:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 390 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 12:38:54,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2024-10-17 12:38:54,693 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-17 12:38:54,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 40 [2024-10-17 12:38:56,800 INFO L85 PathProgramCache]: Analyzing trace with hash -312894110, now seen corresponding path program 1 times [2024-10-17 12:38:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:38:56,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:38:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:38:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 661 proven. 173 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-17 12:38:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:38:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:38:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:38:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 661 proven. 173 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-17 12:38:59,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 12:38:59,508 INFO L85 PathProgramCache]: Analyzing trace with hash 489422511, now seen corresponding path program 11 times [2024-10-17 12:38:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 12:38:59,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105615218] [2024-10-17 12:38:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 12:38:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 12:38:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 12:38:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 284 proven. 621 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-10-17 12:38:59,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 12:38:59,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105615218] [2024-10-17 12:38:59,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105615218] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 12:38:59,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666805853] [2024-10-17 12:38:59,899 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-17 12:38:59,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 12:38:59,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 12:38:59,901 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) [2024-10-17 12:38:59,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-17 12:39:09,058 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-10-17 12:39:09,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 12:39:09,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-17 12:39:09,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 12:39:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 1269 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 12:39:09,901 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 12:39:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 1269 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 12:39:10,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666805853] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 12:39:10,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 12:39:10,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 30, 30] total 75 [2024-10-17 12:39:10,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479633005] [2024-10-17 12:39:10,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 12:39:10,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-10-17 12:39:10,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 12:39:10,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-10-17 12:39:10,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1397, Invalid=4303, Unknown=0, NotChecked=0, Total=5700 [2024-10-17 12:39:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 12:39:10,781 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 12:39:10,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.7368421052631575) internal successors, (436), 75 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 12:39:10,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-10-17 12:39:10,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-10-17 12:39:10,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 12:39:10,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2024-10-17 12:39:10,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.