./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a9140492f4e733c378f87636be646ccd8e7d2f60174537e06a80c7020d713fe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:00:13,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:00:13,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:00:13,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:00:13,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:00:13,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:00:13,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:00:13,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:00:13,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:00:13,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:00:13,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:00:13,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:00:13,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:00:13,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:00:13,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:00:13,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:00:13,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:00:13,752 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:00:13,753 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:00:13,754 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:00:13,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:00:13,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:00:13,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:00:13,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:13,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:00:13,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:00:13,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:00:13,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:00:13,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:13,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:00:13,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:00:13,757 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:00:13,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:00:13,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:00:13,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:00:13,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:00:13,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:00:13,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:00:13,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:00:13,758 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC 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 -> Automizer 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 -> 9a9140492f4e733c378f87636be646ccd8e7d2f60174537e06a80c7020d713fe [2024-11-24 02:00:14,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:00:14,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:00:14,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:00:14,163 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:00:14,163 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:00:14,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-24 02:00:17,973 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/data/66ff8fc0a/bdb344ed308142e48febea4a351e00c8/FLAG32ceda94b [2024-11-24 02:00:18,539 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:00:18,540 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-24 02:00:18,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/data/66ff8fc0a/bdb344ed308142e48febea4a351e00c8/FLAG32ceda94b [2024-11-24 02:00:18,599 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/data/66ff8fc0a/bdb344ed308142e48febea4a351e00c8 [2024-11-24 02:00:18,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:00:18,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:00:18,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:00:18,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:00:18,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:00:18,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:00:18" (1/1) ... [2024-11-24 02:00:18,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1f40e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:18, skipping insertion in model container [2024-11-24 02:00:18,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:00:18" (1/1) ... [2024-11-24 02:00:18,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:00:19,088 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2024-11-24 02:00:19,172 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2024-11-24 02:00:19,189 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2024-11-24 02:00:19,197 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2024-11-24 02:00:19,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:00:19,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:00:19,569 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8635,8648] [2024-11-24 02:00:19,621 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15820,15833] [2024-11-24 02:00:19,639 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18017,18030] [2024-11-24 02:00:19,647 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19041,19054] [2024-11-24 02:00:19,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:00:19,830 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:00:19,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19 WrapperNode [2024-11-24 02:00:19,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:00:19,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:00:19,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:00:19,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:00:19,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:19,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,001 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2844 [2024-11-24 02:00:20,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:00:20,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:00:20,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:00:20,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:00:20,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,089 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 02:00:20,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,141 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:00:20,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:00:20,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:00:20,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:00:20,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (1/1) ... [2024-11-24 02:00:20,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:20,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:00:20,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:00:20,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:00:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:00:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:00:20,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:00:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:00:20,638 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:00:20,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:00:23,192 INFO L? ?]: Removed 486 outVars from TransFormulas that were not future-live. [2024-11-24 02:00:23,193 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:00:23,214 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:00:23,214 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 02:00:23,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:00:23 BoogieIcfgContainer [2024-11-24 02:00:23,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:00:23,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:00:23,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:00:23,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:00:23,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:00:18" (1/3) ... [2024-11-24 02:00:23,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5274d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:00:23, skipping insertion in model container [2024-11-24 02:00:23,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:19" (2/3) ... [2024-11-24 02:00:23,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5274d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:00:23, skipping insertion in model container [2024-11-24 02:00:23,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:00:23" (3/3) ... [2024-11-24 02:00:23,227 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-11-24 02:00:23,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:00:23,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c that has 1 procedures, 457 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-24 02:00:23,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:00:23,364 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=PETRI_NET, 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;@604513dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:00:23,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-24 02:00:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 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) [2024-11-24 02:00:23,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 02:00:23,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:23,396 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:23,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:23,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1707798208, now seen corresponding path program 1 times [2024-11-24 02:00:23,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:23,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665218128] [2024-11-24 02:00:23,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:24,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:24,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665218128] [2024-11-24 02:00:24,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665218128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:24,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:24,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570802290] [2024-11-24 02:00:24,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:24,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:24,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:24,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:24,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:24,052 INFO L87 Difference]: Start difference. First operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 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) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:24,268 INFO L93 Difference]: Finished difference Result 725 states and 1271 transitions. [2024-11-24 02:00:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:24,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-24 02:00:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:24,294 INFO L225 Difference]: With dead ends: 725 [2024-11-24 02:00:24,294 INFO L226 Difference]: Without dead ends: 571 [2024-11-24 02:00:24,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:24,309 INFO L435 NwaCegarLoop]: 865 mSDtfsCounter, 438 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:24,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1416 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:24,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-24 02:00:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2024-11-24 02:00:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 561 states have (on average 1.3440285204991087) internal successors, (754), 564 states have internal predecessors, (754), 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) [2024-11-24 02:00:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 754 transitions. [2024-11-24 02:00:24,429 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 754 transitions. Word has length 51 [2024-11-24 02:00:24,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:24,430 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 754 transitions. [2024-11-24 02:00:24,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:24,430 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 754 transitions. [2024-11-24 02:00:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 02:00:24,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:24,438 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:24,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:00:24,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:24,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:24,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1349444518, now seen corresponding path program 1 times [2024-11-24 02:00:24,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:24,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494358538] [2024-11-24 02:00:24,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:24,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:24,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:24,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494358538] [2024-11-24 02:00:24,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494358538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:24,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:24,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431235106] [2024-11-24 02:00:24,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:24,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:24,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:24,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:24,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:24,722 INFO L87 Difference]: Start difference. First operand 565 states and 754 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:24,865 INFO L93 Difference]: Finished difference Result 994 states and 1379 transitions. [2024-11-24 02:00:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:24,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-24 02:00:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:24,870 INFO L225 Difference]: With dead ends: 994 [2024-11-24 02:00:24,870 INFO L226 Difference]: Without dead ends: 781 [2024-11-24 02:00:24,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:24,873 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:24,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1017 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-24 02:00:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 774. [2024-11-24 02:00:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 770 states have (on average 1.3714285714285714) internal successors, (1056), 773 states have internal predecessors, (1056), 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) [2024-11-24 02:00:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1056 transitions. [2024-11-24 02:00:24,920 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1056 transitions. Word has length 51 [2024-11-24 02:00:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:24,921 INFO L471 AbstractCegarLoop]: Abstraction has 774 states and 1056 transitions. [2024-11-24 02:00:24,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1056 transitions. [2024-11-24 02:00:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 02:00:24,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:24,928 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:24,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:00:24,928 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:24,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1493728400, now seen corresponding path program 1 times [2024-11-24 02:00:24,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:24,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377369198] [2024-11-24 02:00:24,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:24,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:25,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:25,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377369198] [2024-11-24 02:00:25,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377369198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:25,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:25,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:00:25,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531314410] [2024-11-24 02:00:25,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:25,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:25,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:25,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:25,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:25,276 INFO L87 Difference]: Start difference. First operand 774 states and 1056 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:25,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:25,909 INFO L93 Difference]: Finished difference Result 1716 states and 2415 transitions. [2024-11-24 02:00:25,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-24 02:00:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:25,917 INFO L225 Difference]: With dead ends: 1716 [2024-11-24 02:00:25,921 INFO L226 Difference]: Without dead ends: 1059 [2024-11-24 02:00:25,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:25,927 INFO L435 NwaCegarLoop]: 287 mSDtfsCounter, 1743 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:25,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 391 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:00:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-11-24 02:00:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1053. [2024-11-24 02:00:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1049 states have (on average 1.4089609151572926) internal successors, (1478), 1052 states have internal predecessors, (1478), 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) [2024-11-24 02:00:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1478 transitions. [2024-11-24 02:00:25,999 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1478 transitions. Word has length 51 [2024-11-24 02:00:26,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:26,001 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1478 transitions. [2024-11-24 02:00:26,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:26,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1478 transitions. [2024-11-24 02:00:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 02:00:26,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:26,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:26,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:00:26,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:26,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:26,007 INFO L85 PathProgramCache]: Analyzing trace with hash -358090099, now seen corresponding path program 1 times [2024-11-24 02:00:26,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:26,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543317796] [2024-11-24 02:00:26,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:26,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:26,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543317796] [2024-11-24 02:00:26,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543317796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:26,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828328885] [2024-11-24 02:00:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:26,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:26,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:26,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:26,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:26,227 INFO L87 Difference]: Start difference. First operand 1053 states and 1478 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:26,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:26,308 INFO L93 Difference]: Finished difference Result 2099 states and 2965 transitions. [2024-11-24 02:00:26,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:26,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-24 02:00:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:26,317 INFO L225 Difference]: With dead ends: 2099 [2024-11-24 02:00:26,317 INFO L226 Difference]: Without dead ends: 1399 [2024-11-24 02:00:26,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:26,321 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 364 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:26,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 929 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-24 02:00:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1385. [2024-11-24 02:00:26,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1381 states have (on average 1.3721940622737148) internal successors, (1895), 1384 states have internal predecessors, (1895), 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) [2024-11-24 02:00:26,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1895 transitions. [2024-11-24 02:00:26,398 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1895 transitions. Word has length 52 [2024-11-24 02:00:26,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:26,398 INFO L471 AbstractCegarLoop]: Abstraction has 1385 states and 1895 transitions. [2024-11-24 02:00:26,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:26,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1895 transitions. [2024-11-24 02:00:26,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-24 02:00:26,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:26,403 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:26,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:00:26,403 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:26,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:26,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1296606516, now seen corresponding path program 1 times [2024-11-24 02:00:26,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:26,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914791954] [2024-11-24 02:00:26,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:26,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:26,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:26,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914791954] [2024-11-24 02:00:26,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914791954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:26,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:26,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:00:26,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639163196] [2024-11-24 02:00:26,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:26,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:26,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:26,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:26,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:26,695 INFO L87 Difference]: Start difference. First operand 1385 states and 1895 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:27,210 INFO L93 Difference]: Finished difference Result 2980 states and 4125 transitions. [2024-11-24 02:00:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-24 02:00:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:27,220 INFO L225 Difference]: With dead ends: 2980 [2024-11-24 02:00:27,221 INFO L226 Difference]: Without dead ends: 1767 [2024-11-24 02:00:27,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:27,227 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 1527 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:27,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 367 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:00:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-24 02:00:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1755. [2024-11-24 02:00:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1751 states have (on average 1.3774985722444317) internal successors, (2412), 1754 states have internal predecessors, (2412), 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) [2024-11-24 02:00:27,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2412 transitions. [2024-11-24 02:00:27,301 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2412 transitions. Word has length 52 [2024-11-24 02:00:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:27,303 INFO L471 AbstractCegarLoop]: Abstraction has 1755 states and 2412 transitions. [2024-11-24 02:00:27,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2412 transitions. [2024-11-24 02:00:27,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-24 02:00:27,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:27,306 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:27,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:00:27,306 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:27,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:27,307 INFO L85 PathProgramCache]: Analyzing trace with hash -482685133, now seen corresponding path program 1 times [2024-11-24 02:00:27,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:27,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926820909] [2024-11-24 02:00:27,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:27,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:27,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:27,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:27,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926820909] [2024-11-24 02:00:27,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926820909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:27,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:27,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:00:27,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38461456] [2024-11-24 02:00:27,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:27,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:27,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:27,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:27,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:27,538 INFO L87 Difference]: Start difference. First operand 1755 states and 2412 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:28,047 INFO L93 Difference]: Finished difference Result 3900 states and 5393 transitions. [2024-11-24 02:00:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-24 02:00:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:28,061 INFO L225 Difference]: With dead ends: 3900 [2024-11-24 02:00:28,061 INFO L226 Difference]: Without dead ends: 2317 [2024-11-24 02:00:28,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:28,065 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1376 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:28,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 335 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:00:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-11-24 02:00:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2301. [2024-11-24 02:00:28,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2297 states have (on average 1.370047888550283) internal successors, (3147), 2300 states have internal predecessors, (3147), 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) [2024-11-24 02:00:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3147 transitions. [2024-11-24 02:00:28,209 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3147 transitions. Word has length 53 [2024-11-24 02:00:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:28,212 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 3147 transitions. [2024-11-24 02:00:28,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3147 transitions. [2024-11-24 02:00:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 02:00:28,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:28,216 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:28,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:00:28,216 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:28,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1630046103, now seen corresponding path program 1 times [2024-11-24 02:00:28,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:28,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134136377] [2024-11-24 02:00:28,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:28,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:28,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:28,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134136377] [2024-11-24 02:00:28,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134136377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:28,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:28,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:28,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107171855] [2024-11-24 02:00:28,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:28,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:00:28,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:28,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:00:28,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:28,540 INFO L87 Difference]: Start difference. First operand 2301 states and 3147 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-24 02:00:29,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:29,223 INFO L93 Difference]: Finished difference Result 4539 states and 6295 transitions. [2024-11-24 02:00:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:00:29,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) Word has length 54 [2024-11-24 02:00:29,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:29,238 INFO L225 Difference]: With dead ends: 4539 [2024-11-24 02:00:29,238 INFO L226 Difference]: Without dead ends: 3497 [2024-11-24 02:00:29,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:00:29,242 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 1704 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:29,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 583 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:00:29,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-11-24 02:00:29,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 2315. [2024-11-24 02:00:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2311 states have (on average 1.3695369969710083) internal successors, (3165), 2314 states have internal predecessors, (3165), 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) [2024-11-24 02:00:29,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3165 transitions. [2024-11-24 02:00:29,347 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3165 transitions. Word has length 54 [2024-11-24 02:00:29,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:29,347 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3165 transitions. [2024-11-24 02:00:29,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-24 02:00:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3165 transitions. [2024-11-24 02:00:29,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 02:00:29,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:29,350 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:29,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:00:29,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:29,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:29,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1470909546, now seen corresponding path program 1 times [2024-11-24 02:00:29,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:29,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765923571] [2024-11-24 02:00:29,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:29,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:29,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:29,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765923571] [2024-11-24 02:00:29,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765923571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:29,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:29,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:29,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291037632] [2024-11-24 02:00:29,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:29,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:00:29,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:29,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:00:29,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:29,645 INFO L87 Difference]: Start difference. First operand 2315 states and 3165 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-24 02:00:30,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:30,383 INFO L93 Difference]: Finished difference Result 4999 states and 6959 transitions. [2024-11-24 02:00:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:00:30,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) Word has length 54 [2024-11-24 02:00:30,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:30,400 INFO L225 Difference]: With dead ends: 4999 [2024-11-24 02:00:30,401 INFO L226 Difference]: Without dead ends: 4152 [2024-11-24 02:00:30,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:00:30,403 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 1829 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:30,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 618 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:00:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2024-11-24 02:00:30,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 2337. [2024-11-24 02:00:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2333 states have (on average 1.36990998714102) internal successors, (3196), 2336 states have internal predecessors, (3196), 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) [2024-11-24 02:00:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 3196 transitions. [2024-11-24 02:00:30,565 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 3196 transitions. Word has length 54 [2024-11-24 02:00:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:30,566 INFO L471 AbstractCegarLoop]: Abstraction has 2337 states and 3196 transitions. [2024-11-24 02:00:30,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-24 02:00:30,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 3196 transitions. [2024-11-24 02:00:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 02:00:30,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:30,569 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:30,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:00:30,570 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:30,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash 269556297, now seen corresponding path program 1 times [2024-11-24 02:00:30,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:30,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690363582] [2024-11-24 02:00:30,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:30,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:30,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:30,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690363582] [2024-11-24 02:00:30,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690363582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:30,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:30,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:30,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423351956] [2024-11-24 02:00:30,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:30,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:00:30,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:30,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:00:30,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:30,858 INFO L87 Difference]: Start difference. First operand 2337 states and 3196 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-24 02:00:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:31,590 INFO L93 Difference]: Finished difference Result 5833 states and 8113 transitions. [2024-11-24 02:00:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:00:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) Word has length 54 [2024-11-24 02:00:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:31,610 INFO L225 Difference]: With dead ends: 5833 [2024-11-24 02:00:31,610 INFO L226 Difference]: Without dead ends: 4865 [2024-11-24 02:00:31,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:00:31,614 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 1951 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1951 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:31,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1951 Valid, 632 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:00:31,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2024-11-24 02:00:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 2371. [2024-11-24 02:00:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2367 states have (on average 1.3688212927756653) internal successors, (3240), 2370 states have internal predecessors, (3240), 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) [2024-11-24 02:00:31,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3240 transitions. [2024-11-24 02:00:31,722 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3240 transitions. Word has length 54 [2024-11-24 02:00:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:31,723 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 3240 transitions. [2024-11-24 02:00:31,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 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) [2024-11-24 02:00:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3240 transitions. [2024-11-24 02:00:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-24 02:00:31,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:31,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:31,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:00:31,728 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:31,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1866987345, now seen corresponding path program 1 times [2024-11-24 02:00:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:31,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554636621] [2024-11-24 02:00:31,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:32,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:32,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554636621] [2024-11-24 02:00:32,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554636621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:32,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:32,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:00:32,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321285628] [2024-11-24 02:00:32,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:32,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:00:32,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:32,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:00:32,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:00:32,293 INFO L87 Difference]: Start difference. First operand 2371 states and 3240 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-11-24 02:00:33,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:33,143 INFO L93 Difference]: Finished difference Result 4800 states and 6691 transitions. [2024-11-24 02:00:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:00:33,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 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) Word has length 55 [2024-11-24 02:00:33,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:33,155 INFO L225 Difference]: With dead ends: 4800 [2024-11-24 02:00:33,155 INFO L226 Difference]: Without dead ends: 3256 [2024-11-24 02:00:33,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:00:33,158 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1966 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:33,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 765 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:00:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2024-11-24 02:00:33,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 2284. [2024-11-24 02:00:33,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2280 states have (on average 1.3675438596491227) internal successors, (3118), 2283 states have internal predecessors, (3118), 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) [2024-11-24 02:00:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3118 transitions. [2024-11-24 02:00:33,225 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3118 transitions. Word has length 55 [2024-11-24 02:00:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:33,225 INFO L471 AbstractCegarLoop]: Abstraction has 2284 states and 3118 transitions. [2024-11-24 02:00:33,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-11-24 02:00:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3118 transitions. [2024-11-24 02:00:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-24 02:00:33,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:33,228 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:33,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:00:33,228 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:33,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:33,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1508633655, now seen corresponding path program 1 times [2024-11-24 02:00:33,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:33,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335521753] [2024-11-24 02:00:33,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:33,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:33,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:33,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335521753] [2024-11-24 02:00:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335521753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:00:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403840292] [2024-11-24 02:00:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:33,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:00:33,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:33,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:00:33,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:00:33,747 INFO L87 Difference]: Start difference. First operand 2284 states and 3118 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-11-24 02:00:34,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:34,854 INFO L93 Difference]: Finished difference Result 4905 states and 6809 transitions. [2024-11-24 02:00:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:00:34,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) Word has length 55 [2024-11-24 02:00:34,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:34,870 INFO L225 Difference]: With dead ends: 4905 [2024-11-24 02:00:34,870 INFO L226 Difference]: Without dead ends: 3515 [2024-11-24 02:00:34,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:00:34,876 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 1759 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:34,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 1258 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:00:34,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2024-11-24 02:00:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 2255. [2024-11-24 02:00:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3669480231008442) internal successors, (3077), 2254 states have internal predecessors, (3077), 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) [2024-11-24 02:00:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3077 transitions. [2024-11-24 02:00:34,932 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3077 transitions. Word has length 55 [2024-11-24 02:00:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:34,932 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3077 transitions. [2024-11-24 02:00:34,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-11-24 02:00:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3077 transitions. [2024-11-24 02:00:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-24 02:00:34,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:34,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:34,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:00:34,935 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:34,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1235712110, now seen corresponding path program 1 times [2024-11-24 02:00:34,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:34,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146184431] [2024-11-24 02:00:34,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:34,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:35,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:35,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146184431] [2024-11-24 02:00:35,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146184431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:35,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:35,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:00:35,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844693235] [2024-11-24 02:00:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:35,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:00:35,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:35,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:00:35,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:00:35,529 INFO L87 Difference]: Start difference. First operand 2255 states and 3077 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-11-24 02:00:36,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:36,526 INFO L93 Difference]: Finished difference Result 3349 states and 4593 transitions. [2024-11-24 02:00:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:00:36,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) Word has length 55 [2024-11-24 02:00:36,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:36,540 INFO L225 Difference]: With dead ends: 3349 [2024-11-24 02:00:36,541 INFO L226 Difference]: Without dead ends: 3344 [2024-11-24 02:00:36,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:00:36,547 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 2037 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:36,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 1069 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:00:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3344 states. [2024-11-24 02:00:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3344 to 2255. [2024-11-24 02:00:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3660595290981785) internal successors, (3075), 2254 states have internal predecessors, (3075), 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) [2024-11-24 02:00:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3075 transitions. [2024-11-24 02:00:36,623 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3075 transitions. Word has length 55 [2024-11-24 02:00:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:36,624 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3075 transitions. [2024-11-24 02:00:36,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-11-24 02:00:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3075 transitions. [2024-11-24 02:00:36,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 02:00:36,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:36,627 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:36,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:00:36,627 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:36,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1411677613, now seen corresponding path program 1 times [2024-11-24 02:00:36,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:36,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456809998] [2024-11-24 02:00:36,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:36,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:36,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:36,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:36,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456809998] [2024-11-24 02:00:36,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456809998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:36,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:36,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996017549] [2024-11-24 02:00:36,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:36,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:36,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:36,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:36,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:36,737 INFO L87 Difference]: Start difference. First operand 2255 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 02:00:36,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:36,808 INFO L93 Difference]: Finished difference Result 3200 states and 4403 transitions. [2024-11-24 02:00:36,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:36,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) Word has length 56 [2024-11-24 02:00:36,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:36,820 INFO L225 Difference]: With dead ends: 3200 [2024-11-24 02:00:36,821 INFO L226 Difference]: Without dead ends: 2262 [2024-11-24 02:00:36,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:36,827 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 222 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:36,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 791 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2024-11-24 02:00:36,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2255. [2024-11-24 02:00:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3527321190581965) internal successors, (3045), 2254 states have internal predecessors, (3045), 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) [2024-11-24 02:00:36,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3045 transitions. [2024-11-24 02:00:36,880 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3045 transitions. Word has length 56 [2024-11-24 02:00:36,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:36,880 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3045 transitions. [2024-11-24 02:00:36,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 02:00:36,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3045 transitions. [2024-11-24 02:00:36,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 02:00:36,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:36,883 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:36,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 02:00:36,883 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:36,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:36,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1038080617, now seen corresponding path program 1 times [2024-11-24 02:00:36,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:36,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557780002] [2024-11-24 02:00:36,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:36,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:36,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:36,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557780002] [2024-11-24 02:00:36,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557780002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:36,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:36,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:36,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308698964] [2024-11-24 02:00:36,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:36,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:36,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:36,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:36,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:36,982 INFO L87 Difference]: Start difference. First operand 2255 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 02:00:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:37,033 INFO L93 Difference]: Finished difference Result 3257 states and 4435 transitions. [2024-11-24 02:00:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:37,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) Word has length 56 [2024-11-24 02:00:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:37,040 INFO L225 Difference]: With dead ends: 3257 [2024-11-24 02:00:37,040 INFO L226 Difference]: Without dead ends: 2261 [2024-11-24 02:00:37,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:37,043 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 238 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:37,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 796 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2024-11-24 02:00:37,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2255. [2024-11-24 02:00:37,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 2251 states have (on average 1.3402932030208796) internal successors, (3017), 2254 states have internal predecessors, (3017), 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) [2024-11-24 02:00:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3017 transitions. [2024-11-24 02:00:37,099 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3017 transitions. Word has length 56 [2024-11-24 02:00:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:37,099 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3017 transitions. [2024-11-24 02:00:37,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 02:00:37,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3017 transitions. [2024-11-24 02:00:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 02:00:37,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:37,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:37,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 02:00:37,104 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:37,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:37,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1735355720, now seen corresponding path program 1 times [2024-11-24 02:00:37,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:37,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742056304] [2024-11-24 02:00:37,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:37,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:37,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:37,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:37,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742056304] [2024-11-24 02:00:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742056304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:37,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:37,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:37,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120920444] [2024-11-24 02:00:37,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:37,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:37,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:37,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:37,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:37,231 INFO L87 Difference]: Start difference. First operand 2255 states and 3017 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 02:00:37,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:37,284 INFO L93 Difference]: Finished difference Result 3345 states and 4505 transitions. [2024-11-24 02:00:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:37,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) Word has length 56 [2024-11-24 02:00:37,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:37,290 INFO L225 Difference]: With dead ends: 3345 [2024-11-24 02:00:37,291 INFO L226 Difference]: Without dead ends: 2246 [2024-11-24 02:00:37,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:37,293 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 257 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:37,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 811 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:37,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-24 02:00:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2240. [2024-11-24 02:00:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2236 states have (on average 1.3206618962432917) internal successors, (2953), 2239 states have internal predecessors, (2953), 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) [2024-11-24 02:00:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2953 transitions. [2024-11-24 02:00:37,351 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2953 transitions. Word has length 56 [2024-11-24 02:00:37,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:37,352 INFO L471 AbstractCegarLoop]: Abstraction has 2240 states and 2953 transitions. [2024-11-24 02:00:37,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-24 02:00:37,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2953 transitions. [2024-11-24 02:00:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 02:00:37,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:37,355 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:37,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 02:00:37,356 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:37,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:37,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1293695138, now seen corresponding path program 1 times [2024-11-24 02:00:37,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:37,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795875836] [2024-11-24 02:00:37,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:37,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:37,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:37,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795875836] [2024-11-24 02:00:37,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795875836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:37,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:37,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:37,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915207333] [2024-11-24 02:00:37,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:37,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:37,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:37,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:37,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:37,444 INFO L87 Difference]: Start difference. First operand 2240 states and 2953 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-24 02:00:37,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:37,546 INFO L93 Difference]: Finished difference Result 4004 states and 5341 transitions. [2024-11-24 02:00:37,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:37,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) Word has length 57 [2024-11-24 02:00:37,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:37,553 INFO L225 Difference]: With dead ends: 4004 [2024-11-24 02:00:37,553 INFO L226 Difference]: Without dead ends: 2744 [2024-11-24 02:00:37,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:37,556 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 346 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:37,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 548 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:37,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2024-11-24 02:00:37,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2058. [2024-11-24 02:00:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2058 states, 2054 states have (on average 1.3227848101265822) internal successors, (2717), 2057 states have internal predecessors, (2717), 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) [2024-11-24 02:00:37,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2717 transitions. [2024-11-24 02:00:37,614 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2717 transitions. Word has length 57 [2024-11-24 02:00:37,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:37,614 INFO L471 AbstractCegarLoop]: Abstraction has 2058 states and 2717 transitions. [2024-11-24 02:00:37,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-24 02:00:37,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2717 transitions. [2024-11-24 02:00:37,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 02:00:37,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:37,617 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:37,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 02:00:37,618 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:37,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1073895861, now seen corresponding path program 1 times [2024-11-24 02:00:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:37,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697587192] [2024-11-24 02:00:37,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:37,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:38,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:38,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:38,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697587192] [2024-11-24 02:00:38,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697587192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:38,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:38,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:00:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179493336] [2024-11-24 02:00:38,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:38,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:00:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:38,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:00:38,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:00:38,641 INFO L87 Difference]: Start difference. First operand 2058 states and 2717 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-11-24 02:00:39,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:39,855 INFO L93 Difference]: Finished difference Result 3155 states and 4203 transitions. [2024-11-24 02:00:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:00:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) Word has length 58 [2024-11-24 02:00:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:39,863 INFO L225 Difference]: With dead ends: 3155 [2024-11-24 02:00:39,863 INFO L226 Difference]: Without dead ends: 2945 [2024-11-24 02:00:39,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-24 02:00:39,867 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 2130 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:39,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 1617 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:00:39,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2024-11-24 02:00:39,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2033. [2024-11-24 02:00:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 2030 states have (on average 1.3236453201970444) internal successors, (2687), 2032 states have internal predecessors, (2687), 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) [2024-11-24 02:00:39,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2687 transitions. [2024-11-24 02:00:39,914 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2687 transitions. Word has length 58 [2024-11-24 02:00:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:39,915 INFO L471 AbstractCegarLoop]: Abstraction has 2033 states and 2687 transitions. [2024-11-24 02:00:39,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-11-24 02:00:39,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2687 transitions. [2024-11-24 02:00:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 02:00:39,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:39,918 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 02:00:39,918 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:39,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:39,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1243428052, now seen corresponding path program 1 times [2024-11-24 02:00:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:39,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655880973] [2024-11-24 02:00:39,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:39,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:41,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:41,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655880973] [2024-11-24 02:00:41,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655880973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:41,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:41,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:00:41,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436472109] [2024-11-24 02:00:41,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:41,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:00:41,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:41,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:00:41,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:00:41,752 INFO L87 Difference]: Start difference. First operand 2033 states and 2687 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-11-24 02:00:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:44,970 INFO L93 Difference]: Finished difference Result 3633 states and 4838 transitions. [2024-11-24 02:00:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 02:00:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) Word has length 58 [2024-11-24 02:00:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:44,978 INFO L225 Difference]: With dead ends: 3633 [2024-11-24 02:00:44,978 INFO L226 Difference]: Without dead ends: 3627 [2024-11-24 02:00:44,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 02:00:44,980 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 2399 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:44,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 3585 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 02:00:44,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2024-11-24 02:00:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 2033. [2024-11-24 02:00:45,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 2030 states have (on average 1.3231527093596058) internal successors, (2686), 2032 states have internal predecessors, (2686), 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) [2024-11-24 02:00:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2686 transitions. [2024-11-24 02:00:45,025 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2686 transitions. Word has length 58 [2024-11-24 02:00:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:45,026 INFO L471 AbstractCegarLoop]: Abstraction has 2033 states and 2686 transitions. [2024-11-24 02:00:45,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-11-24 02:00:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2686 transitions. [2024-11-24 02:00:45,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 02:00:45,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:45,028 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:45,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 02:00:45,029 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:45,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:45,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1776503256, now seen corresponding path program 1 times [2024-11-24 02:00:45,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:45,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786539938] [2024-11-24 02:00:45,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:45,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:45,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:45,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:45,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786539938] [2024-11-24 02:00:45,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786539938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:45,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:45,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:00:45,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336797913] [2024-11-24 02:00:45,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:45,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:00:45,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:45,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:00:45,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:00:45,848 INFO L87 Difference]: Start difference. First operand 2033 states and 2686 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-11-24 02:00:46,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:46,854 INFO L93 Difference]: Finished difference Result 2994 states and 3982 transitions. [2024-11-24 02:00:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:00:46,855 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) Word has length 58 [2024-11-24 02:00:46,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:46,862 INFO L225 Difference]: With dead ends: 2994 [2024-11-24 02:00:46,862 INFO L226 Difference]: Without dead ends: 2930 [2024-11-24 02:00:46,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:00:46,864 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 2057 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:46,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 1555 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:00:46,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2024-11-24 02:00:46,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2018. [2024-11-24 02:00:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2018 states, 2016 states have (on average 1.3239087301587302) internal successors, (2669), 2017 states have internal predecessors, (2669), 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) [2024-11-24 02:00:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2018 states to 2018 states and 2669 transitions. [2024-11-24 02:00:46,907 INFO L78 Accepts]: Start accepts. Automaton has 2018 states and 2669 transitions. Word has length 58 [2024-11-24 02:00:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:46,908 INFO L471 AbstractCegarLoop]: Abstraction has 2018 states and 2669 transitions. [2024-11-24 02:00:46,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 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) [2024-11-24 02:00:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2018 states and 2669 transitions. [2024-11-24 02:00:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 02:00:46,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:46,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:46,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 02:00:46,911 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:46,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1779959307, now seen corresponding path program 1 times [2024-11-24 02:00:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:46,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836323906] [2024-11-24 02:00:46,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:46,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:47,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:47,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836323906] [2024-11-24 02:00:47,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836323906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:47,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:47,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:00:47,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316875634] [2024-11-24 02:00:47,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:47,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:00:47,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:47,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:00:47,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:00:47,625 INFO L87 Difference]: Start difference. First operand 2018 states and 2669 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) [2024-11-24 02:00:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:48,725 INFO L93 Difference]: Finished difference Result 4108 states and 5510 transitions. [2024-11-24 02:00:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:00:48,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) Word has length 58 [2024-11-24 02:00:48,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:48,736 INFO L225 Difference]: With dead ends: 4108 [2024-11-24 02:00:48,736 INFO L226 Difference]: Without dead ends: 3894 [2024-11-24 02:00:48,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:00:48,739 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 2414 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:48,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2414 Valid, 1528 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:00:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2024-11-24 02:00:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1967. [2024-11-24 02:00:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1966 states have (on average 1.3260427263479146) internal successors, (2607), 1966 states have internal predecessors, (2607), 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) [2024-11-24 02:00:48,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2607 transitions. [2024-11-24 02:00:48,794 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2607 transitions. Word has length 58 [2024-11-24 02:00:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:48,795 INFO L471 AbstractCegarLoop]: Abstraction has 1967 states and 2607 transitions. [2024-11-24 02:00:48,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) [2024-11-24 02:00:48,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2607 transitions. [2024-11-24 02:00:48,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 02:00:48,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:48,799 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:48,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 02:00:48,799 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:48,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:48,800 INFO L85 PathProgramCache]: Analyzing trace with hash 590074057, now seen corresponding path program 1 times [2024-11-24 02:00:48,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:48,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920292207] [2024-11-24 02:00:48,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:48,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920292207] [2024-11-24 02:00:48,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920292207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:48,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:48,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:48,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055697689] [2024-11-24 02:00:48,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:48,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:48,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:48,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:48,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:48,954 INFO L87 Difference]: Start difference. First operand 1967 states and 2607 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:49,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:49,086 INFO L93 Difference]: Finished difference Result 4481 states and 6118 transitions. [2024-11-24 02:00:49,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:49,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-24 02:00:49,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:49,095 INFO L225 Difference]: With dead ends: 4481 [2024-11-24 02:00:49,095 INFO L226 Difference]: Without dead ends: 3327 [2024-11-24 02:00:49,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:49,098 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 1187 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:49,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 874 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-11-24 02:00:49,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 2952. [2024-11-24 02:00:49,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2951 states have (on average 1.3297187394103693) internal successors, (3924), 2951 states have internal predecessors, (3924), 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) [2024-11-24 02:00:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 3924 transitions. [2024-11-24 02:00:49,156 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 3924 transitions. Word has length 68 [2024-11-24 02:00:49,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:49,156 INFO L471 AbstractCegarLoop]: Abstraction has 2952 states and 3924 transitions. [2024-11-24 02:00:49,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 3924 transitions. [2024-11-24 02:00:49,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 02:00:49,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:49,163 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:49,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 02:00:49,163 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:49,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1666510355, now seen corresponding path program 1 times [2024-11-24 02:00:49,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:49,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448799192] [2024-11-24 02:00:49,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:49,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:49,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:49,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448799192] [2024-11-24 02:00:49,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448799192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:49,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:49,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:49,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159862693] [2024-11-24 02:00:49,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:49,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:49,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:49,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:49,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:49,397 INFO L87 Difference]: Start difference. First operand 2952 states and 3924 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:49,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:49,534 INFO L93 Difference]: Finished difference Result 2958 states and 3927 transitions. [2024-11-24 02:00:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:49,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-24 02:00:49,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:49,542 INFO L225 Difference]: With dead ends: 2958 [2024-11-24 02:00:49,542 INFO L226 Difference]: Without dead ends: 2459 [2024-11-24 02:00:49,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:49,546 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 780 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:49,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 836 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:49,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-24 02:00:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2455. [2024-11-24 02:00:49,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 1.3333333333333333) internal successors, (3272), 2454 states have internal predecessors, (3272), 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) [2024-11-24 02:00:49,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3272 transitions. [2024-11-24 02:00:49,608 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3272 transitions. Word has length 69 [2024-11-24 02:00:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:49,608 INFO L471 AbstractCegarLoop]: Abstraction has 2455 states and 3272 transitions. [2024-11-24 02:00:49,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3272 transitions. [2024-11-24 02:00:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 02:00:49,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:49,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:49,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 02:00:49,615 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:49,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash -533504505, now seen corresponding path program 1 times [2024-11-24 02:00:49,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:49,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402171327] [2024-11-24 02:00:49,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:49,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:49,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:49,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402171327] [2024-11-24 02:00:49,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402171327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:49,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:49,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:49,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444358846] [2024-11-24 02:00:49,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:49,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:49,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:49,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:49,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:49,838 INFO L87 Difference]: Start difference. First operand 2455 states and 3272 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-24 02:00:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:49,897 INFO L93 Difference]: Finished difference Result 5657 states and 7666 transitions. [2024-11-24 02:00:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) Word has length 70 [2024-11-24 02:00:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:49,906 INFO L225 Difference]: With dead ends: 5657 [2024-11-24 02:00:49,907 INFO L226 Difference]: Without dead ends: 3861 [2024-11-24 02:00:49,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:49,911 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:49,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 631 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2024-11-24 02:00:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3651. [2024-11-24 02:00:49,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3651 states, 3650 states have (on average 1.330958904109589) internal successors, (4858), 3650 states have internal predecessors, (4858), 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) [2024-11-24 02:00:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 4858 transitions. [2024-11-24 02:00:49,973 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 4858 transitions. Word has length 70 [2024-11-24 02:00:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:49,974 INFO L471 AbstractCegarLoop]: Abstraction has 3651 states and 4858 transitions. [2024-11-24 02:00:49,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-24 02:00:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 4858 transitions. [2024-11-24 02:00:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-24 02:00:49,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:49,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:49,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 02:00:49,978 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:49,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:49,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1110878122, now seen corresponding path program 1 times [2024-11-24 02:00:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:49,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60024142] [2024-11-24 02:00:49,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:49,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:50,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:50,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60024142] [2024-11-24 02:00:50,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60024142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:50,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:50,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:50,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473576428] [2024-11-24 02:00:50,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:50,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:50,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:50,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:50,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:50,140 INFO L87 Difference]: Start difference. First operand 3651 states and 4858 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:50,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:50,209 INFO L93 Difference]: Finished difference Result 9303 states and 12576 transitions. [2024-11-24 02:00:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-24 02:00:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:50,225 INFO L225 Difference]: With dead ends: 9303 [2024-11-24 02:00:50,225 INFO L226 Difference]: Without dead ends: 6337 [2024-11-24 02:00:50,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:50,231 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:50,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 625 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:50,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6337 states. [2024-11-24 02:00:50,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6337 to 5839. [2024-11-24 02:00:50,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5839 states, 5838 states have (on average 1.3350462487153134) internal successors, (7794), 5838 states have internal predecessors, (7794), 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) [2024-11-24 02:00:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 7794 transitions. [2024-11-24 02:00:50,330 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 7794 transitions. Word has length 71 [2024-11-24 02:00:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:50,330 INFO L471 AbstractCegarLoop]: Abstraction has 5839 states and 7794 transitions. [2024-11-24 02:00:50,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:50,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 7794 transitions. [2024-11-24 02:00:50,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-24 02:00:50,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:50,334 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:50,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 02:00:50,335 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:50,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash -396168239, now seen corresponding path program 1 times [2024-11-24 02:00:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289011019] [2024-11-24 02:00:50,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:50,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:50,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289011019] [2024-11-24 02:00:50,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289011019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:50,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:50,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:50,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262345056] [2024-11-24 02:00:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:50,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:50,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:50,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:50,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:50,484 INFO L87 Difference]: Start difference. First operand 5839 states and 7794 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-24 02:00:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:50,590 INFO L93 Difference]: Finished difference Result 15587 states and 20956 transitions. [2024-11-24 02:00:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:50,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) Word has length 73 [2024-11-24 02:00:50,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:50,615 INFO L225 Difference]: With dead ends: 15587 [2024-11-24 02:00:50,615 INFO L226 Difference]: Without dead ends: 10433 [2024-11-24 02:00:50,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:50,624 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 100 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:50,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 610 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10433 states. [2024-11-24 02:00:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10433 to 9439. [2024-11-24 02:00:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9439 states, 9438 states have (on average 1.3276117821572366) internal successors, (12530), 9438 states have internal predecessors, (12530), 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) [2024-11-24 02:00:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9439 states to 9439 states and 12530 transitions. [2024-11-24 02:00:50,882 INFO L78 Accepts]: Start accepts. Automaton has 9439 states and 12530 transitions. Word has length 73 [2024-11-24 02:00:50,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:50,884 INFO L471 AbstractCegarLoop]: Abstraction has 9439 states and 12530 transitions. [2024-11-24 02:00:50,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-24 02:00:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 9439 states and 12530 transitions. [2024-11-24 02:00:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-24 02:00:50,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:50,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:50,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 02:00:50,887 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:50,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1606128063, now seen corresponding path program 1 times [2024-11-24 02:00:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:50,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208955779] [2024-11-24 02:00:50,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:51,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208955779] [2024-11-24 02:00:51,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208955779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:51,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:51,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:51,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026862594] [2024-11-24 02:00:51,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:51,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:51,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:51,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:51,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:51,238 INFO L87 Difference]: Start difference. First operand 9439 states and 12530 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2024-11-24 02:00:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:51,340 INFO L93 Difference]: Finished difference Result 10353 states and 13747 transitions. [2024-11-24 02:00:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:00:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) Word has length 75 [2024-11-24 02:00:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:51,361 INFO L225 Difference]: With dead ends: 10353 [2024-11-24 02:00:51,362 INFO L226 Difference]: Without dead ends: 10351 [2024-11-24 02:00:51,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:51,366 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 0 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:51,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1514 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:51,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10351 states. [2024-11-24 02:00:51,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10351 to 10351. [2024-11-24 02:00:51,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10351 states, 10350 states have (on average 1.298743961352657) internal successors, (13442), 10350 states have internal predecessors, (13442), 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) [2024-11-24 02:00:51,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10351 states to 10351 states and 13442 transitions. [2024-11-24 02:00:51,516 INFO L78 Accepts]: Start accepts. Automaton has 10351 states and 13442 transitions. Word has length 75 [2024-11-24 02:00:51,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:51,516 INFO L471 AbstractCegarLoop]: Abstraction has 10351 states and 13442 transitions. [2024-11-24 02:00:51,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2024-11-24 02:00:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 10351 states and 13442 transitions. [2024-11-24 02:00:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 02:00:51,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:51,520 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:51,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 02:00:51,521 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:51,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash 824153179, now seen corresponding path program 1 times [2024-11-24 02:00:51,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:51,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733958725] [2024-11-24 02:00:51,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:51,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:51,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:51,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733958725] [2024-11-24 02:00:51,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733958725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:51,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:51,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165991908] [2024-11-24 02:00:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:51,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:51,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:51,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:51,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:51,611 INFO L87 Difference]: Start difference. First operand 10351 states and 13442 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:51,729 INFO L93 Difference]: Finished difference Result 24911 states and 32360 transitions. [2024-11-24 02:00:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:51,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-24 02:00:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:51,768 INFO L225 Difference]: With dead ends: 24911 [2024-11-24 02:00:51,768 INFO L226 Difference]: Without dead ends: 15245 [2024-11-24 02:00:51,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:51,784 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 223 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:51,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 459 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:51,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15245 states. [2024-11-24 02:00:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15245 to 15243. [2024-11-24 02:00:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15243 states, 15242 states have (on average 1.2826400734811705) internal successors, (19550), 15242 states have internal predecessors, (19550), 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) [2024-11-24 02:00:52,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15243 states to 15243 states and 19550 transitions. [2024-11-24 02:00:52,074 INFO L78 Accepts]: Start accepts. Automaton has 15243 states and 19550 transitions. Word has length 76 [2024-11-24 02:00:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:52,074 INFO L471 AbstractCegarLoop]: Abstraction has 15243 states and 19550 transitions. [2024-11-24 02:00:52,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 15243 states and 19550 transitions. [2024-11-24 02:00:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 02:00:52,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:52,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:52,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 02:00:52,078 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:52,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:52,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1756244585, now seen corresponding path program 1 times [2024-11-24 02:00:52,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:52,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552675872] [2024-11-24 02:00:52,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:52,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:52,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552675872] [2024-11-24 02:00:52,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552675872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:52,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:52,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147067069] [2024-11-24 02:00:52,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:52,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:52,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:52,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:52,234 INFO L87 Difference]: Start difference. First operand 15243 states and 19550 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-11-24 02:00:52,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:52,407 INFO L93 Difference]: Finished difference Result 22049 states and 28430 transitions. [2024-11-24 02:00:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:52,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) Word has length 77 [2024-11-24 02:00:52,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:52,446 INFO L225 Difference]: With dead ends: 22049 [2024-11-24 02:00:52,446 INFO L226 Difference]: Without dead ends: 18429 [2024-11-24 02:00:52,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:52,455 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 693 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:52,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 954 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18429 states. [2024-11-24 02:00:52,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18429 to 17181. [2024-11-24 02:00:52,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17181 states, 17180 states have (on average 1.278812572759022) internal successors, (21970), 17180 states have internal predecessors, (21970), 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) [2024-11-24 02:00:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17181 states to 17181 states and 21970 transitions. [2024-11-24 02:00:52,707 INFO L78 Accepts]: Start accepts. Automaton has 17181 states and 21970 transitions. Word has length 77 [2024-11-24 02:00:52,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:52,708 INFO L471 AbstractCegarLoop]: Abstraction has 17181 states and 21970 transitions. [2024-11-24 02:00:52,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-11-24 02:00:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 17181 states and 21970 transitions. [2024-11-24 02:00:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-24 02:00:52,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:52,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:52,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 02:00:52,713 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:52,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash -51175098, now seen corresponding path program 1 times [2024-11-24 02:00:52,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:52,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563362002] [2024-11-24 02:00:52,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:52,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:52,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:52,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563362002] [2024-11-24 02:00:52,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563362002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:52,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:52,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:52,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126313560] [2024-11-24 02:00:52,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:52,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:52,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:52,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:52,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:52,791 INFO L87 Difference]: Start difference. First operand 17181 states and 21970 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:53,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:53,018 INFO L93 Difference]: Finished difference Result 33786 states and 43238 transitions. [2024-11-24 02:00:53,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:53,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-24 02:00:53,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:53,075 INFO L225 Difference]: With dead ends: 33786 [2024-11-24 02:00:53,075 INFO L226 Difference]: Without dead ends: 25841 [2024-11-24 02:00:53,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:53,089 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 225 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:53,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 360 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:53,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25841 states. [2024-11-24 02:00:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25841 to 16830. [2024-11-24 02:00:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16830 states, 16829 states have (on average 1.2764870164596827) internal successors, (21482), 16829 states have internal predecessors, (21482), 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) [2024-11-24 02:00:53,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16830 states to 16830 states and 21482 transitions. [2024-11-24 02:00:53,381 INFO L78 Accepts]: Start accepts. Automaton has 16830 states and 21482 transitions. Word has length 80 [2024-11-24 02:00:53,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:53,381 INFO L471 AbstractCegarLoop]: Abstraction has 16830 states and 21482 transitions. [2024-11-24 02:00:53,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:00:53,382 INFO L276 IsEmpty]: Start isEmpty. Operand 16830 states and 21482 transitions. [2024-11-24 02:00:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 02:00:53,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:53,390 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:53,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 02:00:53,391 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:53,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1593588101, now seen corresponding path program 1 times [2024-11-24 02:00:53,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:53,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951062107] [2024-11-24 02:00:53,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:53,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 02:00:53,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:53,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951062107] [2024-11-24 02:00:53,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951062107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:53,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:53,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:00:53,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690189178] [2024-11-24 02:00:53,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:53,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:00:53,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:53,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:00:53,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:00:53,848 INFO L87 Difference]: Start difference. First operand 16830 states and 21482 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-11-24 02:00:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:54,805 INFO L93 Difference]: Finished difference Result 35085 states and 44668 transitions. [2024-11-24 02:00:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:00:54,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 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) Word has length 95 [2024-11-24 02:00:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:54,880 INFO L225 Difference]: With dead ends: 35085 [2024-11-24 02:00:54,880 INFO L226 Difference]: Without dead ends: 26869 [2024-11-24 02:00:54,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:00:54,895 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 1196 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:54,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 921 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:00:54,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26869 states. [2024-11-24 02:00:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26869 to 16764. [2024-11-24 02:00:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16764 states, 16763 states have (on average 1.2768597506412933) internal successors, (21404), 16763 states have internal predecessors, (21404), 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) [2024-11-24 02:00:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16764 states to 16764 states and 21404 transitions. [2024-11-24 02:00:55,334 INFO L78 Accepts]: Start accepts. Automaton has 16764 states and 21404 transitions. Word has length 95 [2024-11-24 02:00:55,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:55,334 INFO L471 AbstractCegarLoop]: Abstraction has 16764 states and 21404 transitions. [2024-11-24 02:00:55,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 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) [2024-11-24 02:00:55,334 INFO L276 IsEmpty]: Start isEmpty. Operand 16764 states and 21404 transitions. [2024-11-24 02:00:55,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 02:00:55,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:55,344 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:55,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 02:00:55,344 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:00:55,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:55,345 INFO L85 PathProgramCache]: Analyzing trace with hash 670186457, now seen corresponding path program 1 times [2024-11-24 02:00:55,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:55,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85726636] [2024-11-24 02:00:55,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:55,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:56,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:56,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:56,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85726636] [2024-11-24 02:00:56,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85726636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:00:56,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318702724] [2024-11-24 02:00:56,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:56,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:00:56,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:00:56,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:00:56,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:00:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:56,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 02:00:56,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:57,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:00:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:00:58,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318702724] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:00:58,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:00:58,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-24 02:00:58,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232344398] [2024-11-24 02:00:58,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:00:58,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 02:00:58,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:58,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 02:00:58,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:00:58,954 INFO L87 Difference]: Start difference. First operand 16764 states and 21404 transitions. Second operand has 26 states, 26 states have (on average 9.346153846153847) internal successors, (243), 25 states have internal predecessors, (243), 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) [2024-11-24 02:01:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:01,091 INFO L93 Difference]: Finished difference Result 45967 states and 58808 transitions. [2024-11-24 02:01:01,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 02:01:01,092 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.346153846153847) internal successors, (243), 25 states have internal predecessors, (243), 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) Word has length 95 [2024-11-24 02:01:01,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:01,173 INFO L225 Difference]: With dead ends: 45967 [2024-11-24 02:01:01,174 INFO L226 Difference]: Without dead ends: 38009 [2024-11-24 02:01:01,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=542, Invalid=1714, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 02:01:01,195 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1806 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:01,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 1931 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:01:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38009 states. [2024-11-24 02:01:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38009 to 28388. [2024-11-24 02:01:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28388 states, 28387 states have (on average 1.278190721104731) internal successors, (36284), 28387 states have internal predecessors, (36284), 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) [2024-11-24 02:01:01,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28388 states to 28388 states and 36284 transitions. [2024-11-24 02:01:01,759 INFO L78 Accepts]: Start accepts. Automaton has 28388 states and 36284 transitions. Word has length 95 [2024-11-24 02:01:01,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:01,759 INFO L471 AbstractCegarLoop]: Abstraction has 28388 states and 36284 transitions. [2024-11-24 02:01:01,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.346153846153847) internal successors, (243), 25 states have internal predecessors, (243), 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) [2024-11-24 02:01:01,760 INFO L276 IsEmpty]: Start isEmpty. Operand 28388 states and 36284 transitions. [2024-11-24 02:01:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:01:01,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:01,767 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:01,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:01:01,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:01,968 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:01,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:01,969 INFO L85 PathProgramCache]: Analyzing trace with hash -161019492, now seen corresponding path program 1 times [2024-11-24 02:01:01,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:01,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019137811] [2024-11-24 02:01:01,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:01,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:02,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:02,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019137811] [2024-11-24 02:01:02,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019137811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:02,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563908073] [2024-11-24 02:01:02,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:02,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:02,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:02,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:02,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:01:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:02,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 02:01:02,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:04,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:04,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:01:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563908073] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:01:05,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:01:05,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 28 [2024-11-24 02:01:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340211077] [2024-11-24 02:01:05,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:01:05,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 02:01:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:05,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 02:01:05,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-24 02:01:05,790 INFO L87 Difference]: Start difference. First operand 28388 states and 36284 transitions. Second operand has 29 states, 29 states have (on average 8.344827586206897) internal successors, (242), 28 states have internal predecessors, (242), 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) [2024-11-24 02:01:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:18,413 INFO L93 Difference]: Finished difference Result 147535 states and 186060 transitions. [2024-11-24 02:01:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-11-24 02:01:18,414 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.344827586206897) internal successors, (242), 28 states have internal predecessors, (242), 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) Word has length 96 [2024-11-24 02:01:18,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:18,666 INFO L225 Difference]: With dead ends: 147535 [2024-11-24 02:01:18,666 INFO L226 Difference]: Without dead ends: 135494 [2024-11-24 02:01:18,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7338 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=3973, Invalid=17197, Unknown=0, NotChecked=0, Total=21170 [2024-11-24 02:01:18,698 INFO L435 NwaCegarLoop]: 395 mSDtfsCounter, 4711 mSDsluCounter, 5819 mSDsCounter, 0 mSdLazyCounter, 5594 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 5594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:18,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 6214 Invalid, 5704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 5594 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-24 02:01:18,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135494 states. [2024-11-24 02:01:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135494 to 29382. [2024-11-24 02:01:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29382 states, 29381 states have (on average 1.2761308328511622) internal successors, (37494), 29381 states have internal predecessors, (37494), 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) [2024-11-24 02:01:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29382 states to 29382 states and 37494 transitions. [2024-11-24 02:01:19,687 INFO L78 Accepts]: Start accepts. Automaton has 29382 states and 37494 transitions. Word has length 96 [2024-11-24 02:01:19,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:19,687 INFO L471 AbstractCegarLoop]: Abstraction has 29382 states and 37494 transitions. [2024-11-24 02:01:19,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.344827586206897) internal successors, (242), 28 states have internal predecessors, (242), 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) [2024-11-24 02:01:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 29382 states and 37494 transitions. [2024-11-24 02:01:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:01:19,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:19,694 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:19,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 02:01:19,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-24 02:01:19,895 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:19,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash -715560704, now seen corresponding path program 1 times [2024-11-24 02:01:19,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:19,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822539584] [2024-11-24 02:01:19,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:19,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:20,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:20,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822539584] [2024-11-24 02:01:20,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822539584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:20,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715859578] [2024-11-24 02:01:20,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:20,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:20,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:20,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:20,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 02:01:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:20,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 02:01:20,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:21,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:01:21,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715859578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:21,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:01:21,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 15 [2024-11-24 02:01:21,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383061494] [2024-11-24 02:01:21,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:21,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:01:21,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:21,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:01:21,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:01:21,797 INFO L87 Difference]: Start difference. First operand 29382 states and 37494 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) [2024-11-24 02:01:23,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:23,719 INFO L93 Difference]: Finished difference Result 92358 states and 117672 transitions. [2024-11-24 02:01:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 02:01:23,719 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) Word has length 96 [2024-11-24 02:01:23,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:23,804 INFO L225 Difference]: With dead ends: 92358 [2024-11-24 02:01:23,805 INFO L226 Difference]: Without dead ends: 78394 [2024-11-24 02:01:23,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=1187, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 02:01:23,824 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 1296 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:23,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 2525 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:01:23,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78394 states. [2024-11-24 02:01:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78394 to 49699. [2024-11-24 02:01:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49699 states, 49698 states have (on average 1.2769125518129503) internal successors, (63460), 49698 states have internal predecessors, (63460), 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) [2024-11-24 02:01:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49699 states to 49699 states and 63460 transitions. [2024-11-24 02:01:24,595 INFO L78 Accepts]: Start accepts. Automaton has 49699 states and 63460 transitions. Word has length 96 [2024-11-24 02:01:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:24,595 INFO L471 AbstractCegarLoop]: Abstraction has 49699 states and 63460 transitions. [2024-11-24 02:01:24,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) [2024-11-24 02:01:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand 49699 states and 63460 transitions. [2024-11-24 02:01:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:01:24,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:24,606 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:24,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 02:01:24,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-24 02:01:24,807 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash 239963458, now seen corresponding path program 1 times [2024-11-24 02:01:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843024439] [2024-11-24 02:01:24,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:25,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:25,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843024439] [2024-11-24 02:01:25,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843024439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:25,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:25,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708745244] [2024-11-24 02:01:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:25,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:25,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:25,061 INFO L87 Difference]: Start difference. First operand 49699 states and 63460 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-24 02:01:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:25,314 INFO L93 Difference]: Finished difference Result 97719 states and 124933 transitions. [2024-11-24 02:01:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:25,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) Word has length 96 [2024-11-24 02:01:25,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:25,379 INFO L225 Difference]: With dead ends: 97719 [2024-11-24 02:01:25,380 INFO L226 Difference]: Without dead ends: 49701 [2024-11-24 02:01:25,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:25,406 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 121 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:25,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 464 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49701 states. [2024-11-24 02:01:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49701 to 48181. [2024-11-24 02:01:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48181 states, 48180 states have (on average 1.2584682440846824) internal successors, (60633), 48180 states have internal predecessors, (60633), 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) [2024-11-24 02:01:26,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48181 states to 48181 states and 60633 transitions. [2024-11-24 02:01:26,259 INFO L78 Accepts]: Start accepts. Automaton has 48181 states and 60633 transitions. Word has length 96 [2024-11-24 02:01:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:26,260 INFO L471 AbstractCegarLoop]: Abstraction has 48181 states and 60633 transitions. [2024-11-24 02:01:26,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-24 02:01:26,260 INFO L276 IsEmpty]: Start isEmpty. Operand 48181 states and 60633 transitions. [2024-11-24 02:01:26,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 02:01:26,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:26,267 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:26,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 02:01:26,268 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:26,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:26,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1700964892, now seen corresponding path program 1 times [2024-11-24 02:01:26,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:26,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228980940] [2024-11-24 02:01:26,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:26,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:26,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:26,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228980940] [2024-11-24 02:01:26,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228980940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:26,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606868507] [2024-11-24 02:01:26,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:26,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:26,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:26,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:26,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 02:01:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:26,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 02:01:26,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:27,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:01:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:28,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606868507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:01:28,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:01:28,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 22 [2024-11-24 02:01:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123898512] [2024-11-24 02:01:28,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:01:28,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 02:01:28,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:28,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 02:01:28,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:01:28,451 INFO L87 Difference]: Start difference. First operand 48181 states and 60633 transitions. Second operand has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 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) [2024-11-24 02:01:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:31,589 INFO L93 Difference]: Finished difference Result 172611 states and 217258 transitions. [2024-11-24 02:01:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-24 02:01:31,590 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 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) Word has length 96 [2024-11-24 02:01:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:31,763 INFO L225 Difference]: With dead ends: 172611 [2024-11-24 02:01:31,764 INFO L226 Difference]: Without dead ends: 124669 [2024-11-24 02:01:31,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=832, Invalid=3458, Unknown=0, NotChecked=0, Total=4290 [2024-11-24 02:01:31,834 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 4569 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:31,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 2443 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:01:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124669 states. [2024-11-24 02:01:32,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124669 to 69775. [2024-11-24 02:01:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69775 states, 69774 states have (on average 1.227606271677129) internal successors, (85655), 69774 states have internal predecessors, (85655), 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) [2024-11-24 02:01:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69775 states to 69775 states and 85655 transitions. [2024-11-24 02:01:33,067 INFO L78 Accepts]: Start accepts. Automaton has 69775 states and 85655 transitions. Word has length 96 [2024-11-24 02:01:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:33,067 INFO L471 AbstractCegarLoop]: Abstraction has 69775 states and 85655 transitions. [2024-11-24 02:01:33,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.318181818181818) internal successors, (271), 22 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) [2024-11-24 02:01:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 69775 states and 85655 transitions. [2024-11-24 02:01:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 02:01:33,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:33,074 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:33,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 02:01:33,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-24 02:01:33,275 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:33,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:33,276 INFO L85 PathProgramCache]: Analyzing trace with hash 678258623, now seen corresponding path program 1 times [2024-11-24 02:01:33,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:33,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120555544] [2024-11-24 02:01:33,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:33,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 02:01:33,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:33,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120555544] [2024-11-24 02:01:33,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120555544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:33,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:33,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:33,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499190283] [2024-11-24 02:01:33,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:33,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:33,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:33,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:33,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:33,343 INFO L87 Difference]: Start difference. First operand 69775 states and 85655 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:34,029 INFO L93 Difference]: Finished difference Result 137809 states and 169343 transitions. [2024-11-24 02:01:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:34,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-24 02:01:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:34,352 INFO L225 Difference]: With dead ends: 137809 [2024-11-24 02:01:34,352 INFO L226 Difference]: Without dead ends: 69257 [2024-11-24 02:01:34,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:34,370 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 189 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:34,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 261 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:01:34,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69257 states. [2024-11-24 02:01:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69257 to 69257. [2024-11-24 02:01:35,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69257 states, 69256 states have (on average 1.2159235300912556) internal successors, (84210), 69256 states have internal predecessors, (84210), 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) [2024-11-24 02:01:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69257 states to 69257 states and 84210 transitions. [2024-11-24 02:01:35,309 INFO L78 Accepts]: Start accepts. Automaton has 69257 states and 84210 transitions. Word has length 98 [2024-11-24 02:01:35,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:35,310 INFO L471 AbstractCegarLoop]: Abstraction has 69257 states and 84210 transitions. [2024-11-24 02:01:35,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 69257 states and 84210 transitions. [2024-11-24 02:01:35,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 02:01:35,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:35,314 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:35,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 02:01:35,314 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:35,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash -245080703, now seen corresponding path program 1 times [2024-11-24 02:01:35,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:35,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832649882] [2024-11-24 02:01:35,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:35,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:35,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:35,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832649882] [2024-11-24 02:01:35,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832649882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:35,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:35,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:35,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400420757] [2024-11-24 02:01:35,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:35,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:35,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:35,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:35,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:35,417 INFO L87 Difference]: Start difference. First operand 69257 states and 84210 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2024-11-24 02:01:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:36,095 INFO L93 Difference]: Finished difference Result 132818 states and 161440 transitions. [2024-11-24 02:01:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:01:36,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) Word has length 98 [2024-11-24 02:01:36,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:36,160 INFO L225 Difference]: With dead ends: 132818 [2024-11-24 02:01:36,160 INFO L226 Difference]: Without dead ends: 64514 [2024-11-24 02:01:36,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:36,186 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 449 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:36,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 450 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:01:36,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64514 states. [2024-11-24 02:01:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64514 to 63591. [2024-11-24 02:01:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63591 states, 63590 states have (on average 1.1933480106935053) internal successors, (75885), 63590 states have internal predecessors, (75885), 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) [2024-11-24 02:01:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63591 states to 63591 states and 75885 transitions. [2024-11-24 02:01:37,148 INFO L78 Accepts]: Start accepts. Automaton has 63591 states and 75885 transitions. Word has length 98 [2024-11-24 02:01:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:37,148 INFO L471 AbstractCegarLoop]: Abstraction has 63591 states and 75885 transitions. [2024-11-24 02:01:37,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 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) [2024-11-24 02:01:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 63591 states and 75885 transitions. [2024-11-24 02:01:37,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 02:01:37,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:37,153 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:37,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 02:01:37,154 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:37,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -701589762, now seen corresponding path program 1 times [2024-11-24 02:01:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:37,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117657312] [2024-11-24 02:01:37,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:37,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:37,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117657312] [2024-11-24 02:01:37,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117657312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:37,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876827334] [2024-11-24 02:01:37,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:37,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:37,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:37,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:37,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 02:01:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:37,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 02:01:37,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:38,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:38,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:01:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:38,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876827334] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:01:38,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:01:38,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-24 02:01:38,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845319202] [2024-11-24 02:01:38,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:01:38,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:01:38,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:38,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:01:38,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:01:38,235 INFO L87 Difference]: Start difference. First operand 63591 states and 75885 transitions. Second operand has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 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) [2024-11-24 02:01:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:38,932 INFO L93 Difference]: Finished difference Result 130322 states and 155017 transitions. [2024-11-24 02:01:38,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:01:38,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 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) Word has length 98 [2024-11-24 02:01:38,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:39,022 INFO L225 Difference]: With dead ends: 130322 [2024-11-24 02:01:39,023 INFO L226 Difference]: Without dead ends: 81189 [2024-11-24 02:01:39,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:01:39,049 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 1802 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:39,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 1075 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:01:39,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81189 states. [2024-11-24 02:01:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81189 to 67775. [2024-11-24 02:01:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67775 states, 67774 states have (on average 1.1907073509015256) internal successors, (80699), 67774 states have internal predecessors, (80699), 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) [2024-11-24 02:01:40,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67775 states to 67775 states and 80699 transitions. [2024-11-24 02:01:40,249 INFO L78 Accepts]: Start accepts. Automaton has 67775 states and 80699 transitions. Word has length 98 [2024-11-24 02:01:40,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:40,249 INFO L471 AbstractCegarLoop]: Abstraction has 67775 states and 80699 transitions. [2024-11-24 02:01:40,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 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) [2024-11-24 02:01:40,249 INFO L276 IsEmpty]: Start isEmpty. Operand 67775 states and 80699 transitions. [2024-11-24 02:01:40,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 02:01:40,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:40,254 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:40,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 02:01:40,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-24 02:01:40,455 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:40,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:40,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2113002831, now seen corresponding path program 1 times [2024-11-24 02:01:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558771595] [2024-11-24 02:01:40,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 02:01:40,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:40,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558771595] [2024-11-24 02:01:40,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558771595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:40,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:40,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:40,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670019441] [2024-11-24 02:01:40,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:40,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:40,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:40,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:40,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:40,584 INFO L87 Difference]: Start difference. First operand 67775 states and 80699 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:40,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:40,909 INFO L93 Difference]: Finished difference Result 96127 states and 115057 transitions. [2024-11-24 02:01:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:40,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-24 02:01:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:41,017 INFO L225 Difference]: With dead ends: 96127 [2024-11-24 02:01:41,017 INFO L226 Difference]: Without dead ends: 79809 [2024-11-24 02:01:41,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:41,043 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 558 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:41,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 743 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:41,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79809 states. [2024-11-24 02:01:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79809 to 77747. [2024-11-24 02:01:42,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77747 states, 77746 states have (on average 1.1865819463380753) internal successors, (92252), 77746 states have internal predecessors, (92252), 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) [2024-11-24 02:01:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77747 states to 77747 states and 92252 transitions. [2024-11-24 02:01:42,370 INFO L78 Accepts]: Start accepts. Automaton has 77747 states and 92252 transitions. Word has length 102 [2024-11-24 02:01:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:42,370 INFO L471 AbstractCegarLoop]: Abstraction has 77747 states and 92252 transitions. [2024-11-24 02:01:42,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 77747 states and 92252 transitions. [2024-11-24 02:01:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 02:01:42,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:42,382 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:42,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 02:01:42,383 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:42,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:42,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1477417838, now seen corresponding path program 1 times [2024-11-24 02:01:42,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:42,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238061814] [2024-11-24 02:01:42,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:42,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238061814] [2024-11-24 02:01:42,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238061814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:42,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:42,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481491835] [2024-11-24 02:01:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:42,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:42,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:42,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:42,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:42,574 INFO L87 Difference]: Start difference. First operand 77747 states and 92252 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:42,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:42,970 INFO L93 Difference]: Finished difference Result 93211 states and 110944 transitions. [2024-11-24 02:01:42,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:42,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-24 02:01:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:43,460 INFO L225 Difference]: With dead ends: 93211 [2024-11-24 02:01:43,460 INFO L226 Difference]: Without dead ends: 85620 [2024-11-24 02:01:43,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:43,470 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 557 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:43,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 740 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:43,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85620 states. [2024-11-24 02:01:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85620 to 83558. [2024-11-24 02:01:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83558 states, 83557 states have (on average 1.1852866905226371) internal successors, (99039), 83557 states have internal predecessors, (99039), 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) [2024-11-24 02:01:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83558 states to 83558 states and 99039 transitions. [2024-11-24 02:01:44,685 INFO L78 Accepts]: Start accepts. Automaton has 83558 states and 99039 transitions. Word has length 102 [2024-11-24 02:01:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:44,686 INFO L471 AbstractCegarLoop]: Abstraction has 83558 states and 99039 transitions. [2024-11-24 02:01:44,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:44,686 INFO L276 IsEmpty]: Start isEmpty. Operand 83558 states and 99039 transitions. [2024-11-24 02:01:44,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 02:01:44,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:44,691 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:44,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 02:01:44,692 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:44,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1197851110, now seen corresponding path program 1 times [2024-11-24 02:01:44,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:44,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802307121] [2024-11-24 02:01:44,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 02:01:44,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:44,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802307121] [2024-11-24 02:01:44,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802307121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:44,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:44,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:01:44,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962060882] [2024-11-24 02:01:44,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:44,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:01:44,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:44,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:01:44,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:01:44,838 INFO L87 Difference]: Start difference. First operand 83558 states and 99039 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-11-24 02:01:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:45,497 INFO L93 Difference]: Finished difference Result 115107 states and 135303 transitions. [2024-11-24 02:01:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:01:45,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 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) Word has length 105 [2024-11-24 02:01:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:45,641 INFO L225 Difference]: With dead ends: 115107 [2024-11-24 02:01:45,641 INFO L226 Difference]: Without dead ends: 97198 [2024-11-24 02:01:45,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:01:45,670 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 1206 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:45,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 465 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:01:45,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97198 states. [2024-11-24 02:01:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97198 to 83608. [2024-11-24 02:01:46,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83608 states, 83607 states have (on average 1.1852476467281448) internal successors, (99095), 83607 states have internal predecessors, (99095), 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) [2024-11-24 02:01:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83608 states to 83608 states and 99095 transitions. [2024-11-24 02:01:46,942 INFO L78 Accepts]: Start accepts. Automaton has 83608 states and 99095 transitions. Word has length 105 [2024-11-24 02:01:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:46,946 INFO L471 AbstractCegarLoop]: Abstraction has 83608 states and 99095 transitions. [2024-11-24 02:01:46,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-11-24 02:01:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 83608 states and 99095 transitions. [2024-11-24 02:01:46,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 02:01:46,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:46,964 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:46,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 02:01:46,964 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:46,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1132256314, now seen corresponding path program 1 times [2024-11-24 02:01:46,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:46,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141510244] [2024-11-24 02:01:46,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:46,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 02:01:47,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:47,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141510244] [2024-11-24 02:01:47,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141510244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:47,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:47,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:01:47,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550985822] [2024-11-24 02:01:47,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:47,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:01:47,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:47,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:01:47,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:01:47,098 INFO L87 Difference]: Start difference. First operand 83608 states and 99095 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:48,173 INFO L93 Difference]: Finished difference Result 161199 states and 191805 transitions. [2024-11-24 02:01:48,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:48,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-24 02:01:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:48,320 INFO L225 Difference]: With dead ends: 161199 [2024-11-24 02:01:48,321 INFO L226 Difference]: Without dead ends: 114747 [2024-11-24 02:01:48,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:48,351 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 169 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:48,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 496 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:01:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114747 states. [2024-11-24 02:01:49,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114747 to 96983. [2024-11-24 02:01:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96983 states, 96982 states have (on average 1.184828112433235) internal successors, (114907), 96982 states have internal predecessors, (114907), 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) [2024-11-24 02:01:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96983 states to 96983 states and 114907 transitions. [2024-11-24 02:01:49,794 INFO L78 Accepts]: Start accepts. Automaton has 96983 states and 114907 transitions. Word has length 107 [2024-11-24 02:01:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:49,795 INFO L471 AbstractCegarLoop]: Abstraction has 96983 states and 114907 transitions. [2024-11-24 02:01:49,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:49,795 INFO L276 IsEmpty]: Start isEmpty. Operand 96983 states and 114907 transitions. [2024-11-24 02:01:49,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 02:01:49,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:49,805 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:49,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 02:01:49,805 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:49,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:49,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1725545089, now seen corresponding path program 1 times [2024-11-24 02:01:49,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:49,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912378607] [2024-11-24 02:01:49,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:49,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:50,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:50,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912378607] [2024-11-24 02:01:50,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912378607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:50,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:50,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:01:50,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171742118] [2024-11-24 02:01:50,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:50,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:01:50,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:50,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:01:50,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:01:50,130 INFO L87 Difference]: Start difference. First operand 96983 states and 114907 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:51,520 INFO L93 Difference]: Finished difference Result 170537 states and 202841 transitions. [2024-11-24 02:01:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:01:51,521 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-24 02:01:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:51,664 INFO L225 Difference]: With dead ends: 170537 [2024-11-24 02:01:51,664 INFO L226 Difference]: Without dead ends: 124360 [2024-11-24 02:01:51,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:01:51,689 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 1253 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:51,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 951 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:01:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124360 states. [2024-11-24 02:01:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124360 to 91107. [2024-11-24 02:01:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91107 states, 91106 states have (on average 1.1834237042565803) internal successors, (107817), 91106 states have internal predecessors, (107817), 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) [2024-11-24 02:01:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91107 states to 91107 states and 107817 transitions. [2024-11-24 02:01:52,842 INFO L78 Accepts]: Start accepts. Automaton has 91107 states and 107817 transitions. Word has length 107 [2024-11-24 02:01:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:52,843 INFO L471 AbstractCegarLoop]: Abstraction has 91107 states and 107817 transitions. [2024-11-24 02:01:52,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 02:01:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 91107 states and 107817 transitions. [2024-11-24 02:01:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 02:01:52,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:52,852 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:52,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 02:01:52,852 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:52,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:52,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1802251620, now seen corresponding path program 1 times [2024-11-24 02:01:52,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:52,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661092273] [2024-11-24 02:01:52,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:52,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-24 02:01:52,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:52,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661092273] [2024-11-24 02:01:52,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661092273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:52,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:52,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:52,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823537587] [2024-11-24 02:01:52,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:52,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:52,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:52,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:52,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:52,913 INFO L87 Difference]: Start difference. First operand 91107 states and 107817 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-24 02:01:53,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:53,157 INFO L93 Difference]: Finished difference Result 116874 states and 138344 transitions. [2024-11-24 02:01:53,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:53,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) Word has length 108 [2024-11-24 02:01:53,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:53,233 INFO L225 Difference]: With dead ends: 116874 [2024-11-24 02:01:53,233 INFO L226 Difference]: Without dead ends: 85956 [2024-11-24 02:01:53,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:53,256 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 188 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:53,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 345 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:01:53,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85956 states. [2024-11-24 02:01:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85956 to 85862. [2024-11-24 02:01:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85862 states, 85861 states have (on average 1.180757270472042) internal successors, (101381), 85861 states have internal predecessors, (101381), 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) [2024-11-24 02:01:54,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85862 states to 85862 states and 101381 transitions. [2024-11-24 02:01:54,696 INFO L78 Accepts]: Start accepts. Automaton has 85862 states and 101381 transitions. Word has length 108 [2024-11-24 02:01:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:54,696 INFO L471 AbstractCegarLoop]: Abstraction has 85862 states and 101381 transitions. [2024-11-24 02:01:54,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-24 02:01:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 85862 states and 101381 transitions. [2024-11-24 02:01:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 02:01:54,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:54,707 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:54,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 02:01:54,707 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:01:54,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:54,708 INFO L85 PathProgramCache]: Analyzing trace with hash 587799882, now seen corresponding path program 1 times [2024-11-24 02:01:54,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:54,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653610274] [2024-11-24 02:01:54,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:54,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:55,949 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:55,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:55,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653610274] [2024-11-24 02:01:55,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653610274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:55,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833806234] [2024-11-24 02:01:55,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:55,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:55,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:55,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:55,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 02:01:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:56,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 02:01:56,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:57,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:01:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:01:58,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833806234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:01:58,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:01:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 11] total 32 [2024-11-24 02:01:58,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225640954] [2024-11-24 02:01:58,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:01:58,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 02:01:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:58,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 02:01:58,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2024-11-24 02:01:58,209 INFO L87 Difference]: Start difference. First operand 85862 states and 101381 transitions. Second operand has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 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) [2024-11-24 02:02:00,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:00,543 INFO L93 Difference]: Finished difference Result 113370 states and 133783 transitions. [2024-11-24 02:02:00,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-24 02:02:00,544 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 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) Word has length 108 [2024-11-24 02:02:00,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:00,634 INFO L225 Difference]: With dead ends: 113370 [2024-11-24 02:02:00,634 INFO L226 Difference]: Without dead ends: 92620 [2024-11-24 02:02:00,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=763, Invalid=2777, Unknown=0, NotChecked=0, Total=3540 [2024-11-24 02:02:00,655 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 2725 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:00,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 4778 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:02:00,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92620 states. [2024-11-24 02:02:01,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92620 to 85990. [2024-11-24 02:02:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85990 states, 85989 states have (on average 1.1789996394887718) internal successors, (101381), 85989 states have internal predecessors, (101381), 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) [2024-11-24 02:02:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85990 states to 85990 states and 101381 transitions. [2024-11-24 02:02:01,951 INFO L78 Accepts]: Start accepts. Automaton has 85990 states and 101381 transitions. Word has length 108 [2024-11-24 02:02:01,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:01,951 INFO L471 AbstractCegarLoop]: Abstraction has 85990 states and 101381 transitions. [2024-11-24 02:02:01,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 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) [2024-11-24 02:02:01,952 INFO L276 IsEmpty]: Start isEmpty. Operand 85990 states and 101381 transitions. [2024-11-24 02:02:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 02:02:01,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:01,956 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:01,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 02:02:02,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-24 02:02:02,156 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:02:02,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:02,157 INFO L85 PathProgramCache]: Analyzing trace with hash -17084980, now seen corresponding path program 1 times [2024-11-24 02:02:02,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:02,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818735989] [2024-11-24 02:02:02,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:02,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 02:02:02,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:02,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818735989] [2024-11-24 02:02:02,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818735989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:02,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:02,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:02:02,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702263816] [2024-11-24 02:02:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:02,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:02:02,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:02,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:02:02,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:02:02,239 INFO L87 Difference]: Start difference. First operand 85990 states and 101381 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 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) [2024-11-24 02:02:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:02,671 INFO L93 Difference]: Finished difference Result 145376 states and 170890 transitions. [2024-11-24 02:02:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:02:02,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 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) Word has length 109 [2024-11-24 02:02:02,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:02,800 INFO L225 Difference]: With dead ends: 145376 [2024-11-24 02:02:02,801 INFO L226 Difference]: Without dead ends: 121428 [2024-11-24 02:02:02,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:02:02,830 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 129 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:02,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 530 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:02:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121428 states. [2024-11-24 02:02:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121428 to 96505. [2024-11-24 02:02:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96505 states, 96504 states have (on average 1.178800878720053) internal successors, (113759), 96504 states have internal predecessors, (113759), 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) [2024-11-24 02:02:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96505 states to 96505 states and 113759 transitions. [2024-11-24 02:02:04,283 INFO L78 Accepts]: Start accepts. Automaton has 96505 states and 113759 transitions. Word has length 109 [2024-11-24 02:02:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:04,283 INFO L471 AbstractCegarLoop]: Abstraction has 96505 states and 113759 transitions. [2024-11-24 02:02:04,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 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) [2024-11-24 02:02:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 96505 states and 113759 transitions. [2024-11-24 02:02:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 02:02:04,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:04,288 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:04,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-24 02:02:04,288 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:02:04,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:04,289 INFO L85 PathProgramCache]: Analyzing trace with hash 619476935, now seen corresponding path program 1 times [2024-11-24 02:02:04,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:04,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015130762] [2024-11-24 02:02:04,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:04,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:05,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:05,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015130762] [2024-11-24 02:02:05,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015130762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:02:05,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853505122] [2024-11-24 02:02:05,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:05,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:02:05,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:02:05,573 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:02:05,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7502df5-e127-4cd8-b335-c16656a49101/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 02:02:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:05,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 02:02:05,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:02:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:07,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:02:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:07,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853505122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:02:07,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:02:07,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 10] total 34 [2024-11-24 02:02:07,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065314293] [2024-11-24 02:02:07,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:02:07,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 02:02:07,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:07,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 02:02:07,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1032, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:02:07,947 INFO L87 Difference]: Start difference. First operand 96505 states and 113759 transitions. Second operand has 34 states, 34 states have (on average 9.029411764705882) internal successors, (307), 34 states have internal predecessors, (307), 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) [2024-11-24 02:02:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:41,314 INFO L93 Difference]: Finished difference Result 287403 states and 334126 transitions. [2024-11-24 02:02:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 233 states. [2024-11-24 02:02:41,315 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.029411764705882) internal successors, (307), 34 states have internal predecessors, (307), 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) Word has length 109 [2024-11-24 02:02:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:41,732 INFO L225 Difference]: With dead ends: 287403 [2024-11-24 02:02:41,732 INFO L226 Difference]: Without dead ends: 274717 [2024-11-24 02:02:41,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26850 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=9692, Invalid=60268, Unknown=0, NotChecked=0, Total=69960 [2024-11-24 02:02:41,790 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 10385 mSDsluCounter, 6542 mSDsCounter, 0 mSdLazyCounter, 7061 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10385 SdHoareTripleChecker+Valid, 6910 SdHoareTripleChecker+Invalid, 7240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 7061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:41,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10385 Valid, 6910 Invalid, 7240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [179 Valid, 7061 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-24 02:02:41,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274717 states.