./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1 --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 8cf115d4302a759115807aea65f676f71adc0b6ce2bb4bf80b483d683b67abc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:12:22,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:12:22,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:12:22,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:12:22,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:12:22,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:12:22,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:12:22,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:12:22,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:12:22,801 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:12:22,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:12:22,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:12:22,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:12:22,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:12:22,801 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:12:22,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:12:22,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:12:22,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:12:22,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:12:22,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:12:22,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:12:22,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:12:22,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:12:22,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:12:22,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:12:22,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:12:22,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:12:22,804 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_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1 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 -> 8cf115d4302a759115807aea65f676f71adc0b6ce2bb4bf80b483d683b67abc2 [2024-12-02 08:12:23,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:12:23,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:12:23,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:12:23,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:12:23,058 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:12:23,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c [2024-12-02 08:12:25,715 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/data/3c694e532/15378140dfa1489fb525f46a9900e14f/FLAG0566035dc [2024-12-02 08:12:26,114 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:12:26,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c [2024-12-02 08:12:26,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/data/3c694e532/15378140dfa1489fb525f46a9900e14f/FLAG0566035dc [2024-12-02 08:12:26,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/data/3c694e532/15378140dfa1489fb525f46a9900e14f [2024-12-02 08:12:26,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:12:26,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:12:26,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:12:26,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:12:26,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:12:26,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:12:26" (1/1) ... [2024-12-02 08:12:26,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5408b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:26, skipping insertion in model container [2024-12-02 08:12:26,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:12:26" (1/1) ... [2024-12-02 08:12:26,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:12:26,591 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_e95ef410-48b8-4649-b99d-365021a4ed68/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c[26897,26910] [2024-12-02 08:12:26,636 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_e95ef410-48b8-4649-b99d-365021a4ed68/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c[34645,34658] [2024-12-02 08:12:27,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:12:27,205 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:12:27,245 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_e95ef410-48b8-4649-b99d-365021a4ed68/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c[26897,26910] [2024-12-02 08:12:27,256 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_e95ef410-48b8-4649-b99d-365021a4ed68/sv-benchmarks/c/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c[34645,34658] [2024-12-02 08:12:27,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:12:27,706 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:12:27,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27 WrapperNode [2024-12-02 08:12:27,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:12:27,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:12:27,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:12:27,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:12:27,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:27,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,031 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5292 [2024-12-02 08:12:28,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:12:28,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:12:28,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:12:28,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:12:28,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,256 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]. [2024-12-02 08:12:28,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:12:28,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:12:28,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:12:28,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:12:28,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (1/1) ... [2024-12-02 08:12:28,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:12:28,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:12:28,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:12:28,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:12:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:12:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:12:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:12:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:12:28,664 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:12:28,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:12:33,185 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 08:12:33,185 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:12:33,212 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:12:33,213 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 08:12:33,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:12:33 BoogieIcfgContainer [2024-12-02 08:12:33,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:12:33,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:12:33,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:12:33,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:12:33,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:12:26" (1/3) ... [2024-12-02 08:12:33,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ede41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:12:33, skipping insertion in model container [2024-12-02 08:12:33,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:12:27" (2/3) ... [2024-12-02 08:12:33,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ede41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:12:33, skipping insertion in model container [2024-12-02 08:12:33,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:12:33" (3/3) ... [2024-12-02 08:12:33,222 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c [2024-12-02 08:12:33,237 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:12:33,240 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label09.c that has 1 procedures, 948 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 08:12:33,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:12:33,327 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;@7d837000, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:12:33,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 08:12:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 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) [2024-12-02 08:12:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 08:12:33,341 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:33,342 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] [2024-12-02 08:12:33,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:33,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash 607462501, now seen corresponding path program 1 times [2024-12-02 08:12:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:33,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122146286] [2024-12-02 08:12:33,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:33,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:33,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:33,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122146286] [2024-12-02 08:12:33,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122146286] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:33,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:33,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:12:33,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874679608] [2024-12-02 08:12:33,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:33,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:12:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:33,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:12:33,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:12:33,648 INFO L87 Difference]: Start difference. First operand has 948 states, 945 states have (on average 1.9026455026455027) internal successors, (1798), 947 states have internal predecessors, (1798), 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 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-12-02 08:12:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:33,716 INFO L93 Difference]: Finished difference Result 1829 states and 3466 transitions. [2024-12-02 08:12:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:12:33,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2024-12-02 08:12:33,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:33,731 INFO L225 Difference]: With dead ends: 1829 [2024-12-02 08:12:33,731 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 08:12:33,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:12:33,739 INFO L435 NwaCegarLoop]: 1732 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:33,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 08:12:33,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 08:12:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8920454545454546) internal successors, (1665), 881 states have internal predecessors, (1665), 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) [2024-12-02 08:12:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1665 transitions. [2024-12-02 08:12:33,800 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1665 transitions. Word has length 31 [2024-12-02 08:12:33,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:33,800 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1665 transitions. [2024-12-02 08:12:33,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-12-02 08:12:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1665 transitions. [2024-12-02 08:12:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 08:12:33,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:33,802 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] [2024-12-02 08:12:33,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:12:33,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:33,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash 748011111, now seen corresponding path program 1 times [2024-12-02 08:12:33,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:33,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097798661] [2024-12-02 08:12:33,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:34,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:34,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097798661] [2024-12-02 08:12:34,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097798661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:34,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:34,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:12:34,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850726508] [2024-12-02 08:12:34,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:34,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:12:34,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:34,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:12:34,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:34,053 INFO L87 Difference]: Start difference. First operand 882 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-12-02 08:12:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:34,185 INFO L93 Difference]: Finished difference Result 947 states and 1767 transitions. [2024-12-02 08:12:34,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:12:34,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2024-12-02 08:12:34,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:34,189 INFO L225 Difference]: With dead ends: 947 [2024-12-02 08:12:34,189 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 08:12:34,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:34,191 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:34,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6586 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:12:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 08:12:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-12-02 08:12:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8227272727272728) internal successors, (1604), 881 states have internal predecessors, (1604), 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) [2024-12-02 08:12:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1604 transitions. [2024-12-02 08:12:34,214 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1604 transitions. Word has length 31 [2024-12-02 08:12:34,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:34,214 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1604 transitions. [2024-12-02 08:12:34,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-12-02 08:12:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1604 transitions. [2024-12-02 08:12:34,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 08:12:34,215 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:34,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:34,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:12:34,216 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:34,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1241050275, now seen corresponding path program 1 times [2024-12-02 08:12:34,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:34,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813883380] [2024-12-02 08:12:34,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:34,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:34,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:34,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813883380] [2024-12-02 08:12:34,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813883380] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:34,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:34,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:34,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838223137] [2024-12-02 08:12:34,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:34,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:12:34,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:34,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:12:34,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:12:34,455 INFO L87 Difference]: Start difference. First operand 882 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-12-02 08:12:40,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:40,295 INFO L93 Difference]: Finished difference Result 3137 states and 5913 transitions. [2024-12-02 08:12:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:12:40,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-12-02 08:12:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:40,302 INFO L225 Difference]: With dead ends: 3137 [2024-12-02 08:12:40,303 INFO L226 Difference]: Without dead ends: 2384 [2024-12-02 08:12:40,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:40,305 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 2515 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 6399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:40,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 876 Invalid, 6399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-12-02 08:12:40,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-12-02 08:12:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2024-12-02 08:12:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5029387069689337) internal successors, (3580), 2383 states have internal predecessors, (3580), 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) [2024-12-02 08:12:40,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3580 transitions. [2024-12-02 08:12:40,364 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3580 transitions. Word has length 67 [2024-12-02 08:12:40,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:40,364 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3580 transitions. [2024-12-02 08:12:40,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-12-02 08:12:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3580 transitions. [2024-12-02 08:12:40,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 08:12:40,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:40,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:40,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:12:40,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:40,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1819257143, now seen corresponding path program 1 times [2024-12-02 08:12:40,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:40,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142808248] [2024-12-02 08:12:40,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:40,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:40,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:40,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142808248] [2024-12-02 08:12:40,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142808248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:40,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:40,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:12:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602929303] [2024-12-02 08:12:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:40,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:12:40,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:40,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:12:40,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:12:40,724 INFO L87 Difference]: Start difference. First operand 2384 states and 3580 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:12:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:41,249 INFO L93 Difference]: Finished difference Result 3360 states and 5148 transitions. [2024-12-02 08:12:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:12:41,249 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-12-02 08:12:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:41,262 INFO L225 Difference]: With dead ends: 3360 [2024-12-02 08:12:41,262 INFO L226 Difference]: Without dead ends: 3299 [2024-12-02 08:12:41,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:12:41,264 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13470 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13470 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:41,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13470 Valid, 6211 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:12:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-12-02 08:12:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2443. [2024-12-02 08:12:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2441 states have (on average 1.5055305202785743) internal successors, (3675), 2442 states have internal predecessors, (3675), 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) [2024-12-02 08:12:41,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3675 transitions. [2024-12-02 08:12:41,366 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3675 transitions. Word has length 91 [2024-12-02 08:12:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:41,367 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3675 transitions. [2024-12-02 08:12:41,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:12:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3675 transitions. [2024-12-02 08:12:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 08:12:41,368 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:41,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:12:41,369 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:41,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1161263545, now seen corresponding path program 1 times [2024-12-02 08:12:41,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:41,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498220704] [2024-12-02 08:12:41,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:41,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:41,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498220704] [2024-12-02 08:12:41,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498220704] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:41,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:41,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100828410] [2024-12-02 08:12:41,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:41,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:41,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:41,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:41,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:41,507 INFO L87 Difference]: Start difference. First operand 2443 states and 3675 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) [2024-12-02 08:12:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:41,542 INFO L93 Difference]: Finished difference Result 2672 states and 4042 transitions. [2024-12-02 08:12:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:41,542 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 93 [2024-12-02 08:12:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:41,551 INFO L225 Difference]: With dead ends: 2672 [2024-12-02 08:12:41,551 INFO L226 Difference]: Without dead ends: 2552 [2024-12-02 08:12:41,553 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 [2024-12-02 08:12:41,553 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1506 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:41,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:41,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-12-02 08:12:41,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-12-02 08:12:41,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5090266875981162) internal successors, (3845), 2549 states have internal predecessors, (3845), 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) [2024-12-02 08:12:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3845 transitions. [2024-12-02 08:12:41,612 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3845 transitions. Word has length 93 [2024-12-02 08:12:41,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:41,613 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3845 transitions. [2024-12-02 08:12:41,613 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) [2024-12-02 08:12:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3845 transitions. [2024-12-02 08:12:41,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 08:12:41,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:41,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:41,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:12:41,615 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:41,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:41,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1094770033, now seen corresponding path program 1 times [2024-12-02 08:12:41,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:41,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176237867] [2024-12-02 08:12:41,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:41,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:42,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:42,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176237867] [2024-12-02 08:12:42,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176237867] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:42,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:42,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:12:42,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369133666] [2024-12-02 08:12:42,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:42,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:12:42,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:42,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:12:42,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:12:42,176 INFO L87 Difference]: Start difference. First operand 2550 states and 3845 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-12-02 08:12:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:42,658 INFO L93 Difference]: Finished difference Result 2779 states and 4209 transitions. [2024-12-02 08:12:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:12:42,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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 93 [2024-12-02 08:12:42,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:42,665 INFO L225 Difference]: With dead ends: 2779 [2024-12-02 08:12:42,665 INFO L226 Difference]: Without dead ends: 2552 [2024-12-02 08:12:42,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:12:42,667 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1590 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:42,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2366 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:12:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-12-02 08:12:42,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2550. [2024-12-02 08:12:42,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2548 states have (on average 1.5082417582417582) internal successors, (3843), 2549 states have internal predecessors, (3843), 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) [2024-12-02 08:12:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3843 transitions. [2024-12-02 08:12:42,704 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3843 transitions. Word has length 93 [2024-12-02 08:12:42,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:42,704 INFO L471 AbstractCegarLoop]: Abstraction has 2550 states and 3843 transitions. [2024-12-02 08:12:42,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 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) [2024-12-02 08:12:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3843 transitions. [2024-12-02 08:12:42,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 08:12:42,706 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:42,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:42,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:12:42,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:42,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:42,707 INFO L85 PathProgramCache]: Analyzing trace with hash 7144525, now seen corresponding path program 1 times [2024-12-02 08:12:42,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:42,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547233947] [2024-12-02 08:12:42,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:42,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:42,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547233947] [2024-12-02 08:12:42,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547233947] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:42,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:42,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:12:42,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806350228] [2024-12-02 08:12:42,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:42,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:12:42,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:42,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:12:42,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:42,988 INFO L87 Difference]: Start difference. First operand 2550 states and 3843 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-12-02 08:12:43,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:43,031 INFO L93 Difference]: Finished difference Result 2558 states and 3852 transitions. [2024-12-02 08:12:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:12:43,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 94 [2024-12-02 08:12:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:43,039 INFO L225 Difference]: With dead ends: 2558 [2024-12-02 08:12:43,039 INFO L226 Difference]: Without dead ends: 2556 [2024-12-02 08:12:43,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:12:43,041 INFO L435 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:43,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6395 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2024-12-02 08:12:43,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2024-12-02 08:12:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2554 states have (on average 1.5066562255285827) internal successors, (3848), 2555 states have internal predecessors, (3848), 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) [2024-12-02 08:12:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3848 transitions. [2024-12-02 08:12:43,098 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3848 transitions. Word has length 94 [2024-12-02 08:12:43,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:43,099 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 3848 transitions. [2024-12-02 08:12:43,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-12-02 08:12:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3848 transitions. [2024-12-02 08:12:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:43,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:43,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:43,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:12:43,101 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:43,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 471923503, now seen corresponding path program 1 times [2024-12-02 08:12:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:43,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814104842] [2024-12-02 08:12:43,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:43,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814104842] [2024-12-02 08:12:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814104842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:43,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:43,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:43,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70025974] [2024-12-02 08:12:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:43,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:43,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:43,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:43,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:43,206 INFO L87 Difference]: Start difference. First operand 2556 states and 3848 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:43,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:43,247 INFO L93 Difference]: Finished difference Result 2803 states and 4234 transitions. [2024-12-02 08:12:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:43,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:43,256 INFO L225 Difference]: With dead ends: 2803 [2024-12-02 08:12:43,256 INFO L226 Difference]: Without dead ends: 2677 [2024-12-02 08:12:43,257 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 [2024-12-02 08:12:43,257 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1526 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:43,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-12-02 08:12:43,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2675. [2024-12-02 08:12:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2673 states have (on average 1.5084175084175084) internal successors, (4032), 2674 states have internal predecessors, (4032), 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) [2024-12-02 08:12:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4032 transitions. [2024-12-02 08:12:43,315 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4032 transitions. Word has length 95 [2024-12-02 08:12:43,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:43,315 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 4032 transitions. [2024-12-02 08:12:43,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:43,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4032 transitions. [2024-12-02 08:12:43,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:43,316 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:43,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:43,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:12:43,317 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:43,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1510056913, now seen corresponding path program 1 times [2024-12-02 08:12:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691822456] [2024-12-02 08:12:43,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:43,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:43,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691822456] [2024-12-02 08:12:43,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691822456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:43,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:43,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:43,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990403911] [2024-12-02 08:12:43,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:43,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:43,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:43,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:43,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:43,419 INFO L87 Difference]: Start difference. First operand 2675 states and 4032 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:43,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:43,463 INFO L93 Difference]: Finished difference Result 3349 states and 5084 transitions. [2024-12-02 08:12:43,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:43,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:43,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:43,472 INFO L225 Difference]: With dead ends: 3349 [2024-12-02 08:12:43,472 INFO L226 Difference]: Without dead ends: 3000 [2024-12-02 08:12:43,474 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 [2024-12-02 08:12:43,474 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1524 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:43,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2024-12-02 08:12:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2998. [2024-12-02 08:12:43,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2998 states, 2996 states have (on average 1.5120160213618157) internal successors, (4530), 2997 states have internal predecessors, (4530), 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) [2024-12-02 08:12:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 4530 transitions. [2024-12-02 08:12:43,547 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 4530 transitions. Word has length 95 [2024-12-02 08:12:43,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:43,547 INFO L471 AbstractCegarLoop]: Abstraction has 2998 states and 4530 transitions. [2024-12-02 08:12:43,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:43,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 4530 transitions. [2024-12-02 08:12:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:43,548 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:43,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:43,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:12:43,548 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:43,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:43,549 INFO L85 PathProgramCache]: Analyzing trace with hash 594927151, now seen corresponding path program 1 times [2024-12-02 08:12:43,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:43,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680404863] [2024-12-02 08:12:43,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:43,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:43,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:43,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680404863] [2024-12-02 08:12:43,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680404863] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:43,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:43,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:43,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921183273] [2024-12-02 08:12:43,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:43,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:43,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:43,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:43,652 INFO L87 Difference]: Start difference. First operand 2998 states and 4530 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:43,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:43,701 INFO L93 Difference]: Finished difference Result 4294 states and 6536 transitions. [2024-12-02 08:12:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:43,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:43,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:43,713 INFO L225 Difference]: With dead ends: 4294 [2024-12-02 08:12:43,713 INFO L226 Difference]: Without dead ends: 3622 [2024-12-02 08:12:43,715 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 [2024-12-02 08:12:43,715 INFO L435 NwaCegarLoop]: 1676 mSDtfsCounter, 1520 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:43,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2024-12-02 08:12:43,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3620. [2024-12-02 08:12:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 1.5140961857379769) internal successors, (5478), 3619 states have internal predecessors, (5478), 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) [2024-12-02 08:12:43,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5478 transitions. [2024-12-02 08:12:43,800 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5478 transitions. Word has length 95 [2024-12-02 08:12:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:43,800 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5478 transitions. [2024-12-02 08:12:43,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5478 transitions. [2024-12-02 08:12:43,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:43,802 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:43,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:43,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:12:43,802 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:43,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:43,802 INFO L85 PathProgramCache]: Analyzing trace with hash 858783535, now seen corresponding path program 1 times [2024-12-02 08:12:43,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:43,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975848457] [2024-12-02 08:12:43,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:43,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:43,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:43,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975848457] [2024-12-02 08:12:43,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975848457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:43,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:43,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:43,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366050099] [2024-12-02 08:12:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:43,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:43,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:43,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:43,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:43,902 INFO L87 Difference]: Start difference. First operand 3620 states and 5478 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:44,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:44,007 INFO L93 Difference]: Finished difference Result 6112 states and 9296 transitions. [2024-12-02 08:12:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:44,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:44,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:44,020 INFO L225 Difference]: With dead ends: 6112 [2024-12-02 08:12:44,020 INFO L226 Difference]: Without dead ends: 4818 [2024-12-02 08:12:44,023 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 [2024-12-02 08:12:44,023 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 1518 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:44,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2024-12-02 08:12:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4816. [2024-12-02 08:12:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.5118404653095139) internal successors, (7278), 4815 states have internal predecessors, (7278), 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) [2024-12-02 08:12:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 7278 transitions. [2024-12-02 08:12:44,196 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 7278 transitions. Word has length 95 [2024-12-02 08:12:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:44,196 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 7278 transitions. [2024-12-02 08:12:44,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 7278 transitions. [2024-12-02 08:12:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:44,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:44,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:44,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:12:44,198 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:44,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -118423249, now seen corresponding path program 1 times [2024-12-02 08:12:44,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:44,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919917806] [2024-12-02 08:12:44,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:44,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:44,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919917806] [2024-12-02 08:12:44,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919917806] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:44,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:44,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:44,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809054894] [2024-12-02 08:12:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:44,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:44,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:44,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:44,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:44,332 INFO L87 Difference]: Start difference. First operand 4816 states and 7278 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:44,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:44,475 INFO L93 Difference]: Finished difference Result 9604 states and 14528 transitions. [2024-12-02 08:12:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:44,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:44,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:44,491 INFO L225 Difference]: With dead ends: 9604 [2024-12-02 08:12:44,491 INFO L226 Difference]: Without dead ends: 7114 [2024-12-02 08:12:44,495 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 [2024-12-02 08:12:44,496 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 1514 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:44,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-12-02 08:12:44,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7112. [2024-12-02 08:12:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 7110 states have (on average 1.5029535864978902) internal successors, (10686), 7111 states have internal predecessors, (10686), 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) [2024-12-02 08:12:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10686 transitions. [2024-12-02 08:12:44,668 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10686 transitions. Word has length 95 [2024-12-02 08:12:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:44,669 INFO L471 AbstractCegarLoop]: Abstraction has 7112 states and 10686 transitions. [2024-12-02 08:12:44,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10686 transitions. [2024-12-02 08:12:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:44,670 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:44,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:44,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:12:44,671 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:44,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1662509615, now seen corresponding path program 1 times [2024-12-02 08:12:44,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:44,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355623101] [2024-12-02 08:12:44,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:44,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:44,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355623101] [2024-12-02 08:12:44,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355623101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:44,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:44,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:44,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929529563] [2024-12-02 08:12:44,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:44,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:44,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:44,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:44,765 INFO L87 Difference]: Start difference. First operand 7112 states and 10686 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:44,954 INFO L93 Difference]: Finished difference Result 16300 states and 24416 transitions. [2024-12-02 08:12:44,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:44,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:44,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:44,980 INFO L225 Difference]: With dead ends: 16300 [2024-12-02 08:12:44,980 INFO L226 Difference]: Without dead ends: 11514 [2024-12-02 08:12:44,987 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 [2024-12-02 08:12:44,988 INFO L435 NwaCegarLoop]: 1660 mSDtfsCounter, 1512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:44,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2024-12-02 08:12:45,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 11512. [2024-12-02 08:12:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11512 states, 11510 states have (on average 1.487228496959166) internal successors, (17118), 11511 states have internal predecessors, (17118), 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) [2024-12-02 08:12:45,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11512 states to 11512 states and 17118 transitions. [2024-12-02 08:12:45,300 INFO L78 Accepts]: Start accepts. Automaton has 11512 states and 17118 transitions. Word has length 95 [2024-12-02 08:12:45,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:45,300 INFO L471 AbstractCegarLoop]: Abstraction has 11512 states and 17118 transitions. [2024-12-02 08:12:45,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 11512 states and 17118 transitions. [2024-12-02 08:12:45,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:45,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:45,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:45,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:12:45,302 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:45,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:45,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2097045551, now seen corresponding path program 1 times [2024-12-02 08:12:45,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:45,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903450473] [2024-12-02 08:12:45,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:45,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:45,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:45,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903450473] [2024-12-02 08:12:45,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903450473] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:45,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:45,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:45,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448540176] [2024-12-02 08:12:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:45,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:45,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:45,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:45,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:45,360 INFO L87 Difference]: Start difference. First operand 11512 states and 17118 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:45,568 INFO L93 Difference]: Finished difference Result 29116 states and 43040 transitions. [2024-12-02 08:12:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:45,598 INFO L225 Difference]: With dead ends: 29116 [2024-12-02 08:12:45,599 INFO L226 Difference]: Without dead ends: 19930 [2024-12-02 08:12:45,609 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 [2024-12-02 08:12:45,610 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 1516 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:45,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:45,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2024-12-02 08:12:46,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 19928. [2024-12-02 08:12:46,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19928 states, 19926 states have (on average 1.4661246612466126) internal successors, (29214), 19927 states have internal predecessors, (29214), 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) [2024-12-02 08:12:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19928 states to 19928 states and 29214 transitions. [2024-12-02 08:12:46,044 INFO L78 Accepts]: Start accepts. Automaton has 19928 states and 29214 transitions. Word has length 95 [2024-12-02 08:12:46,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:46,045 INFO L471 AbstractCegarLoop]: Abstraction has 19928 states and 29214 transitions. [2024-12-02 08:12:46,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 19928 states and 29214 transitions. [2024-12-02 08:12:46,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 08:12:46,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:46,046 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:46,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:12:46,046 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:46,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:46,046 INFO L85 PathProgramCache]: Analyzing trace with hash 432012591, now seen corresponding path program 1 times [2024-12-02 08:12:46,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:46,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561027659] [2024-12-02 08:12:46,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:46,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:12:46,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561027659] [2024-12-02 08:12:46,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561027659] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:46,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:46,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:12:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983973624] [2024-12-02 08:12:46,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:46,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:12:46,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:46,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:12:46,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:12:46,109 INFO L87 Difference]: Start difference. First operand 19928 states and 29214 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:46,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:46,583 INFO L93 Difference]: Finished difference Result 53596 states and 77984 transitions. [2024-12-02 08:12:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:12:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 [2024-12-02 08:12:46,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:46,641 INFO L225 Difference]: With dead ends: 53596 [2024-12-02 08:12:46,641 INFO L226 Difference]: Without dead ends: 35994 [2024-12-02 08:12:46,654 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 [2024-12-02 08:12:46,655 INFO L435 NwaCegarLoop]: 1686 mSDtfsCounter, 1522 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:46,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:12:46,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35994 states. [2024-12-02 08:12:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35994 to 35992. [2024-12-02 08:12:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35992 states, 35990 states have (on average 1.441233676021117) internal successors, (51870), 35991 states have internal predecessors, (51870), 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) [2024-12-02 08:12:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35992 states to 35992 states and 51870 transitions. [2024-12-02 08:12:47,640 INFO L78 Accepts]: Start accepts. Automaton has 35992 states and 51870 transitions. Word has length 95 [2024-12-02 08:12:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:47,641 INFO L471 AbstractCegarLoop]: Abstraction has 35992 states and 51870 transitions. [2024-12-02 08:12:47,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 08:12:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 35992 states and 51870 transitions. [2024-12-02 08:12:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:12:47,648 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:47,648 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:47,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:12:47,648 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:47,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1265201594, now seen corresponding path program 1 times [2024-12-02 08:12:47,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:47,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709443394] [2024-12-02 08:12:47,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:47,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:12:48,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:48,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709443394] [2024-12-02 08:12:48,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709443394] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:48,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:48,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:12:48,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599521428] [2024-12-02 08:12:48,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:48,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:12:48,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:48,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:12:48,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:12:48,034 INFO L87 Difference]: Start difference. First operand 35992 states and 51870 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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) [2024-12-02 08:12:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:12:52,342 INFO L93 Difference]: Finished difference Result 301994 states and 433959 transitions. [2024-12-02 08:12:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:12:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 121 [2024-12-02 08:12:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:12:52,794 INFO L225 Difference]: With dead ends: 301994 [2024-12-02 08:12:52,794 INFO L226 Difference]: Without dead ends: 278440 [2024-12-02 08:12:52,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:12:52,849 INFO L435 NwaCegarLoop]: 1701 mSDtfsCounter, 11802 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11802 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:12:52,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11802 Valid, 5167 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:12:52,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278440 states. [2024-12-02 08:12:55,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278440 to 64664. [2024-12-02 08:12:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64664 states, 64662 states have (on average 1.433639540997804) internal successors, (92702), 64663 states have internal predecessors, (92702), 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) [2024-12-02 08:12:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64664 states to 64664 states and 92702 transitions. [2024-12-02 08:12:55,396 INFO L78 Accepts]: Start accepts. Automaton has 64664 states and 92702 transitions. Word has length 121 [2024-12-02 08:12:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:12:55,397 INFO L471 AbstractCegarLoop]: Abstraction has 64664 states and 92702 transitions. [2024-12-02 08:12:55,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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) [2024-12-02 08:12:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 64664 states and 92702 transitions. [2024-12-02 08:12:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:12:55,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:12:55,402 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:12:55,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:12:55,403 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:12:55,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:12:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1047785286, now seen corresponding path program 1 times [2024-12-02 08:12:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:12:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585112327] [2024-12-02 08:12:55,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:12:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:12:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:12:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 08:12:55,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:12:55,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585112327] [2024-12-02 08:12:55,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585112327] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:12:55,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:12:55,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:12:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592357579] [2024-12-02 08:12:55,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:55,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:12:55,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:12:55,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:12:55,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:12:55,602 INFO L87 Difference]: Start difference. First operand 64664 states and 92702 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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) [2024-12-02 08:13:01,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:01,258 INFO L93 Difference]: Finished difference Result 335658 states and 482087 transitions. [2024-12-02 08:13:01,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:13:01,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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 121 [2024-12-02 08:13:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:01,550 INFO L225 Difference]: With dead ends: 335658 [2024-12-02 08:13:01,550 INFO L226 Difference]: Without dead ends: 301992 [2024-12-02 08:13:01,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:13:01,602 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11804 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11804 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:01,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11804 Valid, 5106 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:13:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301992 states. [2024-12-02 08:13:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301992 to 110104. [2024-12-02 08:13:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110104 states, 110102 states have (on average 1.4290566928847797) internal successors, (157342), 110103 states have internal predecessors, (157342), 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) [2024-12-02 08:13:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110104 states to 110104 states and 157342 transitions. [2024-12-02 08:13:05,329 INFO L78 Accepts]: Start accepts. Automaton has 110104 states and 157342 transitions. Word has length 121 [2024-12-02 08:13:05,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:05,329 INFO L471 AbstractCegarLoop]: Abstraction has 110104 states and 157342 transitions. [2024-12-02 08:13:05,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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) [2024-12-02 08:13:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 110104 states and 157342 transitions. [2024-12-02 08:13:05,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:13:05,334 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:05,334 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:05,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:13:05,334 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:05,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:05,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1142197946, now seen corresponding path program 1 times [2024-12-02 08:13:05,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:05,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044595553] [2024-12-02 08:13:05,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:05,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:05,599 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 08:13:05,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044595553] [2024-12-02 08:13:05,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044595553] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:05,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:05,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:13:05,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392477733] [2024-12-02 08:13:05,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:05,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:13:05,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:05,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:13:05,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:13:05,600 INFO L87 Difference]: Start difference. First operand 110104 states and 157342 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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) [2024-12-02 08:13:13,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:13,011 INFO L93 Difference]: Finished difference Result 369322 states and 530087 transitions. [2024-12-02 08:13:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:13:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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 121 [2024-12-02 08:13:13,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:13,345 INFO L225 Difference]: With dead ends: 369322 [2024-12-02 08:13:13,345 INFO L226 Difference]: Without dead ends: 335656 [2024-12-02 08:13:13,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:13:13,402 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 11848 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11848 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:13,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11848 Valid, 5122 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:13:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335656 states. [2024-12-02 08:13:17,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335656 to 143768. [2024-12-02 08:13:17,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143768 states, 143766 states have (on average 1.4283071101651295) internal successors, (205342), 143767 states have internal predecessors, (205342), 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) [2024-12-02 08:13:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143768 states to 143768 states and 205342 transitions. [2024-12-02 08:13:18,039 INFO L78 Accepts]: Start accepts. Automaton has 143768 states and 205342 transitions. Word has length 121 [2024-12-02 08:13:18,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:18,039 INFO L471 AbstractCegarLoop]: Abstraction has 143768 states and 205342 transitions. [2024-12-02 08:13:18,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 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) [2024-12-02 08:13:18,040 INFO L276 IsEmpty]: Start isEmpty. Operand 143768 states and 205342 transitions. [2024-12-02 08:13:18,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:13:18,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:18,045 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:18,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:13:18,045 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:18,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash -878341562, now seen corresponding path program 1 times [2024-12-02 08:13:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:18,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692603774] [2024-12-02 08:13:18,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:18,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 08:13:18,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692603774] [2024-12-02 08:13:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692603774] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:18,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:18,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:13:18,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326187072] [2024-12-02 08:13:18,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:18,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:13:18,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:18,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:13:18,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:13:18,231 INFO L87 Difference]: Start difference. First operand 143768 states and 205342 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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) [2024-12-02 08:13:26,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:26,897 INFO L93 Difference]: Finished difference Result 402986 states and 578087 transitions. [2024-12-02 08:13:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:13:26,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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 121 [2024-12-02 08:13:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:27,364 INFO L225 Difference]: With dead ends: 402986 [2024-12-02 08:13:27,364 INFO L226 Difference]: Without dead ends: 369320 [2024-12-02 08:13:27,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:13:27,439 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12002 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12002 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:27,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12002 Valid, 4993 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:13:27,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369320 states. [2024-12-02 08:13:33,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369320 to 177432. [2024-12-02 08:13:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177432 states, 177430 states have (on average 1.4278419658456856) internal successors, (253342), 177431 states have internal predecessors, (253342), 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) [2024-12-02 08:13:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177432 states to 177432 states and 253342 transitions. [2024-12-02 08:13:33,904 INFO L78 Accepts]: Start accepts. Automaton has 177432 states and 253342 transitions. Word has length 121 [2024-12-02 08:13:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:33,904 INFO L471 AbstractCegarLoop]: Abstraction has 177432 states and 253342 transitions. [2024-12-02 08:13:33,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 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) [2024-12-02 08:13:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 177432 states and 253342 transitions. [2024-12-02 08:13:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:13:33,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:33,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:33,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:13:33,916 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:33,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1855548346, now seen corresponding path program 1 times [2024-12-02 08:13:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:33,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603338860] [2024-12-02 08:13:33,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:34,179 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 08:13:34,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:34,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603338860] [2024-12-02 08:13:34,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603338860] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:34,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:34,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:13:34,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264536726] [2024-12-02 08:13:34,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:34,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:13:34,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:34,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:13:34,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:13:34,181 INFO L87 Difference]: Start difference. First operand 177432 states and 253342 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 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) [2024-12-02 08:13:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:43,416 INFO L93 Difference]: Finished difference Result 436650 states and 626087 transitions. [2024-12-02 08:13:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:13:43,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 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 121 [2024-12-02 08:13:43,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:43,877 INFO L225 Difference]: With dead ends: 436650 [2024-12-02 08:13:43,877 INFO L226 Difference]: Without dead ends: 402984 [2024-12-02 08:13:43,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:13:43,943 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 12107 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12107 SdHoareTripleChecker+Valid, 5033 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:43,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12107 Valid, 5033 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:13:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402984 states. [2024-12-02 08:13:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402984 to 211096. [2024-12-02 08:13:50,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211096 states, 211094 states have (on average 1.4275251783565615) internal successors, (301342), 211095 states have internal predecessors, (301342), 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) [2024-12-02 08:13:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211096 states to 211096 states and 301342 transitions. [2024-12-02 08:13:51,169 INFO L78 Accepts]: Start accepts. Automaton has 211096 states and 301342 transitions. Word has length 121 [2024-12-02 08:13:51,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:51,169 INFO L471 AbstractCegarLoop]: Abstraction has 211096 states and 301342 transitions. [2024-12-02 08:13:51,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 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) [2024-12-02 08:13:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 211096 states and 301342 transitions. [2024-12-02 08:13:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:13:51,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:51,177 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:51,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:13:51,177 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:51,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:51,178 INFO L85 PathProgramCache]: Analyzing trace with hash -74615482, now seen corresponding path program 1 times [2024-12-02 08:13:51,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:13:51,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188934497] [2024-12-02 08:13:51,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:13:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:13:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 08:13:51,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:13:51,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188934497] [2024-12-02 08:13:51,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188934497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:13:51,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:13:51,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:13:51,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994619972] [2024-12-02 08:13:51,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:13:51,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:13:51,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:13:51,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:13:51,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:13:51,355 INFO L87 Difference]: Start difference. First operand 211096 states and 301342 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:03,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:03,688 INFO L93 Difference]: Finished difference Result 470314 states and 674087 transitions. [2024-12-02 08:14:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:14:03,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 08:14:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:04,180 INFO L225 Difference]: With dead ends: 470314 [2024-12-02 08:14:04,180 INFO L226 Difference]: Without dead ends: 436648 [2024-12-02 08:14:04,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:14:04,252 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11910 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11910 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:04,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11910 Valid, 5051 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:04,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436648 states. [2024-12-02 08:14:12,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436648 to 244760. [2024-12-02 08:14:12,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244760 states, 244758 states have (on average 1.4272955327302888) internal successors, (349342), 244759 states have internal predecessors, (349342), 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) [2024-12-02 08:14:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244760 states to 244760 states and 349342 transitions. [2024-12-02 08:14:12,855 INFO L78 Accepts]: Start accepts. Automaton has 244760 states and 349342 transitions. Word has length 121 [2024-12-02 08:14:12,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:12,855 INFO L471 AbstractCegarLoop]: Abstraction has 244760 states and 349342 transitions. [2024-12-02 08:14:12,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:14:12,855 INFO L276 IsEmpty]: Start isEmpty. Operand 244760 states and 349342 transitions. [2024-12-02 08:14:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:14:12,863 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:12,863 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:12,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:14:12,863 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:12,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash 359920454, now seen corresponding path program 1 times [2024-12-02 08:14:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:12,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199781790] [2024-12-02 08:14:12,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 08:14:13,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:13,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199781790] [2024-12-02 08:14:13,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199781790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:13,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:13,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:14:13,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965708407] [2024-12-02 08:14:13,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:13,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:14:13,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:13,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:14:13,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:14:13,360 INFO L87 Difference]: Start difference. First operand 244760 states and 349342 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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) [2024-12-02 08:14:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:25,137 INFO L93 Difference]: Finished difference Result 503978 states and 722087 transitions. [2024-12-02 08:14:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:14:25,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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 121 [2024-12-02 08:14:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:25,765 INFO L225 Difference]: With dead ends: 503978 [2024-12-02 08:14:25,765 INFO L226 Difference]: Without dead ends: 470312 [2024-12-02 08:14:25,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:14:25,818 INFO L435 NwaCegarLoop]: 1694 mSDtfsCounter, 11731 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11731 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:25,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11731 Valid, 5312 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:14:26,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470312 states. [2024-12-02 08:14:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470312 to 278424. [2024-12-02 08:14:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278424 states, 278422 states have (on average 1.4271214200027296) internal successors, (397342), 278423 states have internal predecessors, (397342), 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) [2024-12-02 08:14:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278424 states to 278424 states and 397342 transitions. [2024-12-02 08:14:35,914 INFO L78 Accepts]: Start accepts. Automaton has 278424 states and 397342 transitions. Word has length 121 [2024-12-02 08:14:35,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:14:35,914 INFO L471 AbstractCegarLoop]: Abstraction has 278424 states and 397342 transitions. [2024-12-02 08:14:35,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 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) [2024-12-02 08:14:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 278424 states and 397342 transitions. [2024-12-02 08:14:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 08:14:35,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:14:35,924 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:14:35,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:14:35,924 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:14:35,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:14:35,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1305112506, now seen corresponding path program 1 times [2024-12-02 08:14:35,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:14:35,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942407317] [2024-12-02 08:14:35,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:14:35,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:14:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 08:14:36,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:14:36,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942407317] [2024-12-02 08:14:36,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942407317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:14:36,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:14:36,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:14:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119500640] [2024-12-02 08:14:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:14:36,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:14:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:14:36,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:14:36,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:14:36,197 INFO L87 Difference]: Start difference. First operand 278424 states and 397342 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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) [2024-12-02 08:14:50,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:14:50,867 INFO L93 Difference]: Finished difference Result 537642 states and 770087 transitions. [2024-12-02 08:14:50,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:14:50,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 121 [2024-12-02 08:14:50,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:14:51,527 INFO L225 Difference]: With dead ends: 537642 [2024-12-02 08:14:51,527 INFO L226 Difference]: Without dead ends: 503976 [2024-12-02 08:14:51,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:14:51,625 INFO L435 NwaCegarLoop]: 1693 mSDtfsCounter, 11733 mSDsluCounter, 3770 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11733 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:14:51,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11733 Valid, 5463 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:14:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503976 states. [2024-12-02 08:15:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503976 to 312088. [2024-12-02 08:15:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312088 states, 312086 states have (on average 1.4269848695551868) internal successors, (445342), 312087 states have internal predecessors, (445342), 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) [2024-12-02 08:15:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312088 states to 312088 states and 445342 transitions. [2024-12-02 08:15:03,520 INFO L78 Accepts]: Start accepts. Automaton has 312088 states and 445342 transitions. Word has length 121 [2024-12-02 08:15:03,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:03,520 INFO L471 AbstractCegarLoop]: Abstraction has 312088 states and 445342 transitions. [2024-12-02 08:15:03,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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) [2024-12-02 08:15:03,520 INFO L276 IsEmpty]: Start isEmpty. Operand 312088 states and 445342 transitions. [2024-12-02 08:15:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:15:03,529 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:03,529 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:03,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:15:03,530 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:03,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:03,530 INFO L85 PathProgramCache]: Analyzing trace with hash 152835943, now seen corresponding path program 1 times [2024-12-02 08:15:03,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:03,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960970367] [2024-12-02 08:15:03,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:03,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:03,865 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:03,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:03,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960970367] [2024-12-02 08:15:03,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960970367] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:03,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:03,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:03,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562958224] [2024-12-02 08:15:03,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:03,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:03,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:03,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:03,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:03,866 INFO L87 Difference]: Start difference. First operand 312088 states and 445342 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-12-02 08:15:13,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:13,280 INFO L93 Difference]: Finished difference Result 621852 states and 887200 transitions. [2024-12-02 08:15:13,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:13,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 122 [2024-12-02 08:15:13,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:13,783 INFO L225 Difference]: With dead ends: 621852 [2024-12-02 08:15:13,783 INFO L226 Difference]: Without dead ends: 312090 [2024-12-02 08:15:13,875 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 [2024-12-02 08:15:13,875 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:13,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312090 states. [2024-12-02 08:15:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312090 to 312088. [2024-12-02 08:15:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312088 states, 312086 states have (on average 1.4157059272123709) internal successors, (441822), 312087 states have internal predecessors, (441822), 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) [2024-12-02 08:15:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312088 states to 312088 states and 441822 transitions. [2024-12-02 08:15:25,162 INFO L78 Accepts]: Start accepts. Automaton has 312088 states and 441822 transitions. Word has length 122 [2024-12-02 08:15:25,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:25,163 INFO L471 AbstractCegarLoop]: Abstraction has 312088 states and 441822 transitions. [2024-12-02 08:15:25,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-12-02 08:15:25,163 INFO L276 IsEmpty]: Start isEmpty. Operand 312088 states and 441822 transitions. [2024-12-02 08:15:25,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 08:15:25,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:25,168 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-12-02 08:15:25,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:15:25,168 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:25,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:25,169 INFO L85 PathProgramCache]: Analyzing trace with hash 550117598, now seen corresponding path program 1 times [2024-12-02 08:15:25,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:25,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847933618] [2024-12-02 08:15:25,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:25,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:25,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:25,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847933618] [2024-12-02 08:15:25,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847933618] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:25,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:25,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:25,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850139064] [2024-12-02 08:15:25,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:25,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:25,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:25,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:25,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:25,285 INFO L87 Difference]: Start difference. First operand 312088 states and 441822 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-12-02 08:15:28,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:28,961 INFO L93 Difference]: Finished difference Result 423990 states and 601147 transitions. [2024-12-02 08:15:28,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:28,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2024-12-02 08:15:28,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:29,082 INFO L225 Difference]: With dead ends: 423990 [2024-12-02 08:15:29,082 INFO L226 Difference]: Without dead ends: 114228 [2024-12-02 08:15:29,189 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 [2024-12-02 08:15:29,189 INFO L435 NwaCegarLoop]: 1661 mSDtfsCounter, 63 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:29,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3252 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114228 states. [2024-12-02 08:15:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114228 to 114219. [2024-12-02 08:15:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114219 states, 114217 states have (on average 1.414719350009193) internal successors, (161585), 114218 states have internal predecessors, (161585), 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) [2024-12-02 08:15:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114219 states to 114219 states and 161585 transitions. [2024-12-02 08:15:33,312 INFO L78 Accepts]: Start accepts. Automaton has 114219 states and 161585 transitions. Word has length 123 [2024-12-02 08:15:33,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:33,312 INFO L471 AbstractCegarLoop]: Abstraction has 114219 states and 161585 transitions. [2024-12-02 08:15:33,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-12-02 08:15:33,313 INFO L276 IsEmpty]: Start isEmpty. Operand 114219 states and 161585 transitions. [2024-12-02 08:15:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 08:15:33,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:33,317 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:33,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:15:33,317 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:33,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1979176647, now seen corresponding path program 1 times [2024-12-02 08:15:33,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:33,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955283620] [2024-12-02 08:15:33,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:33,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:33,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955283620] [2024-12-02 08:15:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955283620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:33,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88149132] [2024-12-02 08:15:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:33,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:33,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:33,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:33,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:33,501 INFO L87 Difference]: Start difference. First operand 114219 states and 161585 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-12-02 08:15:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:35,401 INFO L93 Difference]: Finished difference Result 170159 states and 240627 transitions. [2024-12-02 08:15:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:35,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2024-12-02 08:15:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:35,456 INFO L225 Difference]: With dead ends: 170159 [2024-12-02 08:15:35,456 INFO L226 Difference]: Without dead ends: 58285 [2024-12-02 08:15:35,494 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 [2024-12-02 08:15:35,495 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 65 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:35,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58285 states. [2024-12-02 08:15:37,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58285 to 58283. [2024-12-02 08:15:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58283 states, 58281 states have (on average 1.4058955748871844) internal successors, (81937), 58282 states have internal predecessors, (81937), 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) [2024-12-02 08:15:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58283 states to 58283 states and 81937 transitions. [2024-12-02 08:15:37,365 INFO L78 Accepts]: Start accepts. Automaton has 58283 states and 81937 transitions. Word has length 124 [2024-12-02 08:15:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:37,366 INFO L471 AbstractCegarLoop]: Abstraction has 58283 states and 81937 transitions. [2024-12-02 08:15:37,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-12-02 08:15:37,366 INFO L276 IsEmpty]: Start isEmpty. Operand 58283 states and 81937 transitions. [2024-12-02 08:15:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 08:15:37,368 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:37,368 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:37,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:15:37,368 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:37,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1946826357, now seen corresponding path program 1 times [2024-12-02 08:15:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:37,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766741344] [2024-12-02 08:15:37,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:37,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:37,456 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:37,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766741344] [2024-12-02 08:15:37,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766741344] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:37,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:37,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:37,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187454118] [2024-12-02 08:15:37,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:37,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:37,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:37,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:37,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:37,458 INFO L87 Difference]: Start difference. First operand 58283 states and 81937 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:38,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:38,368 INFO L93 Difference]: Finished difference Result 86255 states and 121155 transitions. [2024-12-02 08:15:38,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:38,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-12-02 08:15:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:38,398 INFO L225 Difference]: With dead ends: 86255 [2024-12-02 08:15:38,398 INFO L226 Difference]: Without dead ends: 30317 [2024-12-02 08:15:38,416 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 [2024-12-02 08:15:38,416 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 62 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:38,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30317 states. [2024-12-02 08:15:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30317 to 30315. [2024-12-02 08:15:39,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30315 states, 30313 states have (on average 1.3993006300926996) internal successors, (42417), 30314 states have internal predecessors, (42417), 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) [2024-12-02 08:15:39,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30315 states to 30315 states and 42417 transitions. [2024-12-02 08:15:39,275 INFO L78 Accepts]: Start accepts. Automaton has 30315 states and 42417 transitions. Word has length 126 [2024-12-02 08:15:39,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:39,275 INFO L471 AbstractCegarLoop]: Abstraction has 30315 states and 42417 transitions. [2024-12-02 08:15:39,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:39,275 INFO L276 IsEmpty]: Start isEmpty. Operand 30315 states and 42417 transitions. [2024-12-02 08:15:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:15:39,277 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:39,277 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:39,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:15:39,277 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:39,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1691477923, now seen corresponding path program 1 times [2024-12-02 08:15:39,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:39,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850580363] [2024-12-02 08:15:39,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:39,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850580363] [2024-12-02 08:15:39,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850580363] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:39,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:39,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:39,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332918867] [2024-12-02 08:15:39,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:39,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:39,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:39,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:39,452 INFO L87 Difference]: Start difference. First operand 30315 states and 42417 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-12-02 08:15:39,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:39,871 INFO L93 Difference]: Finished difference Result 44303 states and 61875 transitions. [2024-12-02 08:15:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:39,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2024-12-02 08:15:39,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:39,891 INFO L225 Difference]: With dead ends: 44303 [2024-12-02 08:15:39,891 INFO L226 Difference]: Without dead ends: 16333 [2024-12-02 08:15:39,903 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 [2024-12-02 08:15:39,903 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 59 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:39,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16333 states. [2024-12-02 08:15:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16333 to 16331. [2024-12-02 08:15:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16331 states, 16329 states have (on average 1.3968399779533345) internal successors, (22809), 16330 states have internal predecessors, (22809), 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) [2024-12-02 08:15:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16331 states to 16331 states and 22809 transitions. [2024-12-02 08:15:40,362 INFO L78 Accepts]: Start accepts. Automaton has 16331 states and 22809 transitions. Word has length 128 [2024-12-02 08:15:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:40,363 INFO L471 AbstractCegarLoop]: Abstraction has 16331 states and 22809 transitions. [2024-12-02 08:15:40,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2024-12-02 08:15:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 16331 states and 22809 transitions. [2024-12-02 08:15:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:15:40,364 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:40,364 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:40,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:15:40,364 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:40,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:40,364 INFO L85 PathProgramCache]: Analyzing trace with hash -740149841, now seen corresponding path program 1 times [2024-12-02 08:15:40,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:40,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011808591] [2024-12-02 08:15:40,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:40,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:40,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:40,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011808591] [2024-12-02 08:15:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011808591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:40,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485900866] [2024-12-02 08:15:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:40,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:40,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:40,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:40,446 INFO L87 Difference]: Start difference. First operand 16331 states and 22809 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:40,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:40,650 INFO L93 Difference]: Finished difference Result 23327 states and 32463 transitions. [2024-12-02 08:15:40,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:40,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-12-02 08:15:40,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:40,671 INFO L225 Difference]: With dead ends: 23327 [2024-12-02 08:15:40,671 INFO L226 Difference]: Without dead ends: 9341 [2024-12-02 08:15:40,678 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 [2024-12-02 08:15:40,679 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 56 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:40,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3186 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:40,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2024-12-02 08:15:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9339. [2024-12-02 08:15:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9339 states, 9337 states have (on average 1.4009853271928885) internal successors, (13081), 9338 states have internal predecessors, (13081), 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) [2024-12-02 08:15:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9339 states to 9339 states and 13081 transitions. [2024-12-02 08:15:40,927 INFO L78 Accepts]: Start accepts. Automaton has 9339 states and 13081 transitions. Word has length 130 [2024-12-02 08:15:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:40,927 INFO L471 AbstractCegarLoop]: Abstraction has 9339 states and 13081 transitions. [2024-12-02 08:15:40,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9339 states and 13081 transitions. [2024-12-02 08:15:40,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:15:40,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:40,928 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:40,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:15:40,928 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:40,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:40,929 INFO L85 PathProgramCache]: Analyzing trace with hash 875250049, now seen corresponding path program 1 times [2024-12-02 08:15:40,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:40,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40125926] [2024-12-02 08:15:40,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:40,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:41,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:41,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40125926] [2024-12-02 08:15:41,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40125926] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:41,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:41,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:41,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015831525] [2024-12-02 08:15:41,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:41,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:41,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:41,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:41,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:41,033 INFO L87 Difference]: Start difference. First operand 9339 states and 13081 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-12-02 08:15:41,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:41,154 INFO L93 Difference]: Finished difference Result 12839 states and 17871 transitions. [2024-12-02 08:15:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:41,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 132 [2024-12-02 08:15:41,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:41,166 INFO L225 Difference]: With dead ends: 12839 [2024-12-02 08:15:41,167 INFO L226 Difference]: Without dead ends: 5845 [2024-12-02 08:15:41,170 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 [2024-12-02 08:15:41,170 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 53 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:41,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3171 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5845 states. [2024-12-02 08:15:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5845 to 5843. [2024-12-02 08:15:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5843 states, 5841 states have (on average 1.4132853963362437) internal successors, (8255), 5842 states have internal predecessors, (8255), 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) [2024-12-02 08:15:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5843 states to 5843 states and 8255 transitions. [2024-12-02 08:15:41,310 INFO L78 Accepts]: Start accepts. Automaton has 5843 states and 8255 transitions. Word has length 132 [2024-12-02 08:15:41,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:41,310 INFO L471 AbstractCegarLoop]: Abstraction has 5843 states and 8255 transitions. [2024-12-02 08:15:41,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2024-12-02 08:15:41,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5843 states and 8255 transitions. [2024-12-02 08:15:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:15:41,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:41,311 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:41,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:15:41,311 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:41,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1846172627, now seen corresponding path program 1 times [2024-12-02 08:15:41,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:41,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106711474] [2024-12-02 08:15:41,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:41,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:41,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106711474] [2024-12-02 08:15:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106711474] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:41,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:41,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693557839] [2024-12-02 08:15:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:41,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:41,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:41,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:41,407 INFO L87 Difference]: Start difference. First operand 5843 states and 8255 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-12-02 08:15:41,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:41,486 INFO L93 Difference]: Finished difference Result 7595 states and 10632 transitions. [2024-12-02 08:15:41,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:41,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2024-12-02 08:15:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:41,496 INFO L225 Difference]: With dead ends: 7595 [2024-12-02 08:15:41,497 INFO L226 Difference]: Without dead ends: 4097 [2024-12-02 08:15:41,498 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 [2024-12-02 08:15:41,499 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 50 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:41,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3156 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4097 states. [2024-12-02 08:15:41,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4097 to 4095. [2024-12-02 08:15:41,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4095 states, 4093 states have (on average 1.4319569997556805) internal successors, (5861), 4094 states have internal predecessors, (5861), 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) [2024-12-02 08:15:41,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4095 states to 4095 states and 5861 transitions. [2024-12-02 08:15:41,585 INFO L78 Accepts]: Start accepts. Automaton has 4095 states and 5861 transitions. Word has length 134 [2024-12-02 08:15:41,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:41,585 INFO L471 AbstractCegarLoop]: Abstraction has 4095 states and 5861 transitions. [2024-12-02 08:15:41,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-12-02 08:15:41,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4095 states and 5861 transitions. [2024-12-02 08:15:41,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:15:41,586 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:41,586 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:41,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:15:41,587 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:41,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:41,587 INFO L85 PathProgramCache]: Analyzing trace with hash 963159205, now seen corresponding path program 1 times [2024-12-02 08:15:41,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:41,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53244939] [2024-12-02 08:15:41,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:41,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:42,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53244939] [2024-12-02 08:15:42,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53244939] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:15:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316951533] [2024-12-02 08:15:42,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:42,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:15:42,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:15:42,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:15:42,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:15:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:42,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:15:42,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:42,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:15:42,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:15:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:15:43,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316951533] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:15:43,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:15:43,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-12-02 08:15:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34750910] [2024-12-02 08:15:43,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:15:43,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:15:43,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:43,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:15:43,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:15:43,436 INFO L87 Difference]: Start difference. First operand 4095 states and 5861 transitions. Second operand has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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) [2024-12-02 08:15:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:47,028 INFO L93 Difference]: Finished difference Result 13940 states and 18994 transitions. [2024-12-02 08:15:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 08:15:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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 136 [2024-12-02 08:15:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:47,043 INFO L225 Difference]: With dead ends: 13940 [2024-12-02 08:15:47,043 INFO L226 Difference]: Without dead ends: 12190 [2024-12-02 08:15:47,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1208 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=794, Invalid=3238, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 08:15:47,047 INFO L435 NwaCegarLoop]: 1550 mSDtfsCounter, 20390 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20390 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:47,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20390 Valid, 6742 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:15:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12190 states. [2024-12-02 08:15:47,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12190 to 11820. [2024-12-02 08:15:47,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11820 states, 11818 states have (on average 1.3503976984261297) internal successors, (15959), 11819 states have internal predecessors, (15959), 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) [2024-12-02 08:15:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11820 states to 11820 states and 15959 transitions. [2024-12-02 08:15:47,377 INFO L78 Accepts]: Start accepts. Automaton has 11820 states and 15959 transitions. Word has length 136 [2024-12-02 08:15:47,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:47,377 INFO L471 AbstractCegarLoop]: Abstraction has 11820 states and 15959 transitions. [2024-12-02 08:15:47,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 20.473684210526315) internal successors, (389), 19 states have internal predecessors, (389), 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) [2024-12-02 08:15:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 11820 states and 15959 transitions. [2024-12-02 08:15:47,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 08:15:47,378 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:47,378 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:47,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:15:47,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 08:15:47,579 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:47,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:47,579 INFO L85 PathProgramCache]: Analyzing trace with hash -407239470, now seen corresponding path program 1 times [2024-12-02 08:15:47,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:47,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103760242] [2024-12-02 08:15:47,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:47,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:48,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:48,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103760242] [2024-12-02 08:15:48,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103760242] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:15:48,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380981010] [2024-12-02 08:15:48,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:48,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:15:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:15:48,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:15:48,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:15:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:48,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:15:48,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:49,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:15:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:50,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380981010] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:15:50,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:15:50,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 31 [2024-12-02 08:15:50,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725938473] [2024-12-02 08:15:50,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:15:50,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 08:15:50,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:50,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 08:15:50,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:15:50,840 INFO L87 Difference]: Start difference. First operand 11820 states and 15959 transitions. Second operand has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 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) [2024-12-02 08:15:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:55,480 INFO L93 Difference]: Finished difference Result 48052 states and 63308 transitions. [2024-12-02 08:15:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 08:15:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 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 137 [2024-12-02 08:15:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:55,514 INFO L225 Difference]: With dead ends: 48052 [2024-12-02 08:15:55,514 INFO L226 Difference]: Without dead ends: 38667 [2024-12-02 08:15:55,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1335 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1221, Invalid=4785, Unknown=0, NotChecked=0, Total=6006 [2024-12-02 08:15:55,524 INFO L435 NwaCegarLoop]: 1550 mSDtfsCounter, 21712 mSDsluCounter, 5560 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21712 SdHoareTripleChecker+Valid, 7110 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:55,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21712 Valid, 7110 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:15:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38667 states. [2024-12-02 08:15:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38667 to 38007. [2024-12-02 08:15:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38007 states, 38005 states have (on average 1.3011445862386528) internal successors, (49450), 38006 states have internal predecessors, (49450), 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) [2024-12-02 08:15:56,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38007 states to 38007 states and 49450 transitions. [2024-12-02 08:15:56,939 INFO L78 Accepts]: Start accepts. Automaton has 38007 states and 49450 transitions. Word has length 137 [2024-12-02 08:15:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:56,939 INFO L471 AbstractCegarLoop]: Abstraction has 38007 states and 49450 transitions. [2024-12-02 08:15:56,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.03125) internal successors, (353), 31 states have internal predecessors, (353), 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) [2024-12-02 08:15:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 38007 states and 49450 transitions. [2024-12-02 08:15:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 08:15:56,941 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:56,941 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:56,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:15:57,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 08:15:57,141 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:57,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:57,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1438973998, now seen corresponding path program 1 times [2024-12-02 08:15:57,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:57,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797810805] [2024-12-02 08:15:57,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:57,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:57,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797810805] [2024-12-02 08:15:57,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797810805] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:15:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898924515] [2024-12-02 08:15:57,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:57,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:15:57,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:15:57,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:15:57,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:15:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:57,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:15:57,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:58,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:15:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:59,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898924515] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:15:59,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:15:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 08:15:59,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305374834] [2024-12-02 08:15:59,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:15:59,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 08:15:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:59,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 08:15:59,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:15:59,564 INFO L87 Difference]: Start difference. First operand 38007 states and 49450 transitions. Second operand has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 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) [2024-12-02 08:16:07,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:07,361 INFO L93 Difference]: Finished difference Result 238771 states and 310162 transitions. [2024-12-02 08:16:07,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 08:16:07,362 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 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 137 [2024-12-02 08:16:07,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:07,571 INFO L225 Difference]: With dead ends: 238771 [2024-12-02 08:16:07,571 INFO L226 Difference]: Without dead ends: 203749 [2024-12-02 08:16:07,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=810, Invalid=3350, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 08:16:07,611 INFO L435 NwaCegarLoop]: 1597 mSDtfsCounter, 20446 mSDsluCounter, 7485 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20446 SdHoareTripleChecker+Valid, 9082 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:07,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20446 Valid, 9082 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:16:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203749 states. [2024-12-02 08:16:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203749 to 145883. [2024-12-02 08:16:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145883 states, 145881 states have (on average 1.2686778949966069) internal successors, (185076), 145882 states have internal predecessors, (185076), 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) [2024-12-02 08:16:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145883 states to 145883 states and 185076 transitions. [2024-12-02 08:16:13,288 INFO L78 Accepts]: Start accepts. Automaton has 145883 states and 185076 transitions. Word has length 137 [2024-12-02 08:16:13,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:13,289 INFO L471 AbstractCegarLoop]: Abstraction has 145883 states and 185076 transitions. [2024-12-02 08:16:13,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.16) internal successors, (379), 24 states have internal predecessors, (379), 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) [2024-12-02 08:16:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 145883 states and 185076 transitions. [2024-12-02 08:16:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:16:13,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:13,293 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:13,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:16:13,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 08:16:13,493 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:13,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1938046771, now seen corresponding path program 1 times [2024-12-02 08:16:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419519052] [2024-12-02 08:16:13,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:13,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:13,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419519052] [2024-12-02 08:16:13,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419519052] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:13,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:13,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:13,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125125046] [2024-12-02 08:16:13,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:13,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:16:13,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:13,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:16:13,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:16:13,637 INFO L87 Difference]: Start difference. First operand 145883 states and 185076 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-12-02 08:16:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:23,094 INFO L93 Difference]: Finished difference Result 149677 states and 191181 transitions. [2024-12-02 08:16:23,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:16:23,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2024-12-02 08:16:23,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:23,204 INFO L225 Difference]: With dead ends: 149677 [2024-12-02 08:16:23,204 INFO L226 Difference]: Without dead ends: 147385 [2024-12-02 08:16:23,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:16:23,217 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 867 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:23,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1037 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 08:16:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147385 states. [2024-12-02 08:16:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147385 to 147385. [2024-12-02 08:16:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147385 states, 147383 states have (on average 1.2665029209610335) internal successors, (186661), 147384 states have internal predecessors, (186661), 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) [2024-12-02 08:16:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147385 states to 147385 states and 186661 transitions. [2024-12-02 08:16:28,714 INFO L78 Accepts]: Start accepts. Automaton has 147385 states and 186661 transitions. Word has length 138 [2024-12-02 08:16:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:28,714 INFO L471 AbstractCegarLoop]: Abstraction has 147385 states and 186661 transitions. [2024-12-02 08:16:28,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-12-02 08:16:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 147385 states and 186661 transitions. [2024-12-02 08:16:28,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 08:16:28,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:28,720 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:28,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:16:28,720 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:28,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1250497762, now seen corresponding path program 1 times [2024-12-02 08:16:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:28,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910144984] [2024-12-02 08:16:28,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:29,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:29,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910144984] [2024-12-02 08:16:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910144984] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:29,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139176252] [2024-12-02 08:16:29,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:29,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:29,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:16:29,127 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:16:29,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:16:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:29,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:16:29,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:29,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:31,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139176252] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:16:31,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:16:31,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 08:16:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16203094] [2024-12-02 08:16:31,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:16:31,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 08:16:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:31,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 08:16:31,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:16:31,122 INFO L87 Difference]: Start difference. First operand 147385 states and 186661 transitions. Second operand has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 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) [2024-12-02 08:16:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:38,402 INFO L93 Difference]: Finished difference Result 331933 states and 420171 transitions. [2024-12-02 08:16:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 08:16:38,403 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 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 139 [2024-12-02 08:16:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:38,589 INFO L225 Difference]: With dead ends: 331933 [2024-12-02 08:16:38,589 INFO L226 Difference]: Without dead ends: 193969 [2024-12-02 08:16:38,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=536, Invalid=1816, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:16:38,664 INFO L435 NwaCegarLoop]: 1519 mSDtfsCounter, 18836 mSDsluCounter, 6515 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18836 SdHoareTripleChecker+Valid, 8034 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:38,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18836 Valid, 8034 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:16:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193969 states. [2024-12-02 08:16:46,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193969 to 183997. [2024-12-02 08:16:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183997 states, 183995 states have (on average 1.249099160303269) internal successors, (229828), 183996 states have internal predecessors, (229828), 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) [2024-12-02 08:16:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183997 states to 183997 states and 229828 transitions. [2024-12-02 08:16:46,434 INFO L78 Accepts]: Start accepts. Automaton has 183997 states and 229828 transitions. Word has length 139 [2024-12-02 08:16:46,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:46,434 INFO L471 AbstractCegarLoop]: Abstraction has 183997 states and 229828 transitions. [2024-12-02 08:16:46,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.346153846153847) internal successors, (399), 25 states have internal predecessors, (399), 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) [2024-12-02 08:16:46,434 INFO L276 IsEmpty]: Start isEmpty. Operand 183997 states and 229828 transitions. [2024-12-02 08:16:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 08:16:46,438 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:46,438 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:46,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:16:46,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 08:16:46,639 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:46,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:46,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2105197554, now seen corresponding path program 1 times [2024-12-02 08:16:46,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:46,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632093372] [2024-12-02 08:16:46,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:46,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:47,714 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:47,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:47,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632093372] [2024-12-02 08:16:47,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632093372] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:47,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117335782] [2024-12-02 08:16:47,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:47,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:47,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:16:47,716 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:16:47,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:16:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:47,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:16:47,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:48,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:50,626 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:50,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117335782] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:16:50,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:16:50,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 13] total 31 [2024-12-02 08:16:50,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545612949] [2024-12-02 08:16:50,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:16:50,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 08:16:50,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:50,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 08:16:50,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:16:50,627 INFO L87 Difference]: Start difference. First operand 183997 states and 229828 transitions. Second operand has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 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) [2024-12-02 08:17:06,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:17:06,921 INFO L93 Difference]: Finished difference Result 582032 states and 730129 transitions. [2024-12-02 08:17:06,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-12-02 08:17:06,922 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 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 141 [2024-12-02 08:17:06,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:17:07,272 INFO L225 Difference]: With dead ends: 582032 [2024-12-02 08:17:07,272 INFO L226 Difference]: Without dead ends: 415292 [2024-12-02 08:17:07,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=697, Invalid=3335, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 08:17:07,347 INFO L435 NwaCegarLoop]: 1553 mSDtfsCounter, 25614 mSDsluCounter, 12170 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25614 SdHoareTripleChecker+Valid, 13723 SdHoareTripleChecker+Invalid, 2197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:17:07,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25614 Valid, 13723 Invalid, 2197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:17:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415292 states. [2024-12-02 08:17:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415292 to 413136. [2024-12-02 08:17:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413136 states, 413134 states have (on average 1.248914395813465) internal successors, (515969), 413135 states have internal predecessors, (515969), 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) [2024-12-02 08:17:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413136 states to 413136 states and 515969 transitions. [2024-12-02 08:17:25,794 INFO L78 Accepts]: Start accepts. Automaton has 413136 states and 515969 transitions. Word has length 141 [2024-12-02 08:17:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:17:25,795 INFO L471 AbstractCegarLoop]: Abstraction has 413136 states and 515969 transitions. [2024-12-02 08:17:25,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 12.419354838709678) internal successors, (385), 31 states have internal predecessors, (385), 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) [2024-12-02 08:17:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 413136 states and 515969 transitions. [2024-12-02 08:17:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 08:17:25,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:17:25,801 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:17:25,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:17:26,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 08:17:26,001 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:17:26,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:17:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash 192876242, now seen corresponding path program 1 times [2024-12-02 08:17:26,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:17:26,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053765597] [2024-12-02 08:17:26,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:17:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:26,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:17:26,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053765597] [2024-12-02 08:17:26,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053765597] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:17:26,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953608106] [2024-12-02 08:17:26,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:26,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:17:26,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:17:26,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:17:26,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:17:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:26,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 08:17:26,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:17:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:26,966 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:17:27,960 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:27,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953608106] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:17:27,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:17:27,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-12-02 08:17:27,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790680359] [2024-12-02 08:17:27,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:17:27,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 08:17:27,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:17:27,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 08:17:27,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:17:27,962 INFO L87 Difference]: Start difference. First operand 413136 states and 515969 transitions. Second operand has 23 states, 23 states have (on average 14.304347826086957) internal successors, (329), 22 states have internal predecessors, (329), 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) [2024-12-02 08:17:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:17:43,889 INFO L93 Difference]: Finished difference Result 793013 states and 993521 transitions. [2024-12-02 08:17:43,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:17:43,889 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 14.304347826086957) internal successors, (329), 22 states have internal predecessors, (329), 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 141 [2024-12-02 08:17:43,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:17:44,360 INFO L225 Difference]: With dead ends: 793013 [2024-12-02 08:17:44,360 INFO L226 Difference]: Without dead ends: 423148 [2024-12-02 08:17:44,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:17:44,534 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 19724 mSDsluCounter, 6325 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19724 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:17:44,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19724 Valid, 7867 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:17:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423148 states. [2024-12-02 08:18:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423148 to 411448. [2024-12-02 08:18:00,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411448 states, 411446 states have (on average 1.2414533134360282) internal successors, (510791), 411447 states have internal predecessors, (510791), 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) [2024-12-02 08:18:01,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411448 states to 411448 states and 510791 transitions. [2024-12-02 08:18:01,272 INFO L78 Accepts]: Start accepts. Automaton has 411448 states and 510791 transitions. Word has length 141 [2024-12-02 08:18:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:01,273 INFO L471 AbstractCegarLoop]: Abstraction has 411448 states and 510791 transitions. [2024-12-02 08:18:01,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.304347826086957) internal successors, (329), 22 states have internal predecessors, (329), 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) [2024-12-02 08:18:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 411448 states and 510791 transitions. [2024-12-02 08:18:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 08:18:01,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:01,279 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:18:01,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:18:01,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 08:18:01,479 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:01,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash -837617225, now seen corresponding path program 1 times [2024-12-02 08:18:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:01,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202671145] [2024-12-02 08:18:01,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:01,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:01,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202671145] [2024-12-02 08:18:01,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202671145] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:01,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617149594] [2024-12-02 08:18:01,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:01,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:18:01,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:18:01,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:18:01,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:18:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:01,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:18:02,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:18:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:02,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:18:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:03,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617149594] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:18:03,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:18:03,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-12-02 08:18:03,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096483673] [2024-12-02 08:18:03,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:18:03,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:18:03,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:03,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:18:03,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:18:03,649 INFO L87 Difference]: Start difference. First operand 411448 states and 510791 transitions. Second operand has 22 states, 22 states have (on average 15.272727272727273) internal successors, (336), 21 states have internal predecessors, (336), 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) [2024-12-02 08:18:20,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:20,970 INFO L93 Difference]: Finished difference Result 783885 states and 975200 transitions. [2024-12-02 08:18:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:18:20,970 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 15.272727272727273) internal successors, (336), 21 states have internal predecessors, (336), 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 142 [2024-12-02 08:18:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:21,485 INFO L225 Difference]: With dead ends: 783885 [2024-12-02 08:18:21,485 INFO L226 Difference]: Without dead ends: 420924 [2024-12-02 08:18:21,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:18:21,599 INFO L435 NwaCegarLoop]: 1533 mSDtfsCounter, 15154 mSDsluCounter, 4937 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15154 SdHoareTripleChecker+Valid, 6470 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:21,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15154 Valid, 6470 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:18:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420924 states. [2024-12-02 08:18:38,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420924 to 395720. [2024-12-02 08:18:38,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395720 states, 395718 states have (on average 1.2324129809611895) internal successors, (487688), 395719 states have internal predecessors, (487688), 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) [2024-12-02 08:18:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395720 states to 395720 states and 487688 transitions. [2024-12-02 08:18:39,141 INFO L78 Accepts]: Start accepts. Automaton has 395720 states and 487688 transitions. Word has length 142 [2024-12-02 08:18:39,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:39,141 INFO L471 AbstractCegarLoop]: Abstraction has 395720 states and 487688 transitions. [2024-12-02 08:18:39,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 15.272727272727273) internal successors, (336), 21 states have internal predecessors, (336), 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) [2024-12-02 08:18:39,141 INFO L276 IsEmpty]: Start isEmpty. Operand 395720 states and 487688 transitions. [2024-12-02 08:18:39,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 08:18:39,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:39,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:18:39,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:18:39,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 08:18:39,347 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:39,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash -990885282, now seen corresponding path program 1 times [2024-12-02 08:18:39,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:39,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112062069] [2024-12-02 08:18:39,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:39,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:40,753 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:40,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:40,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112062069] [2024-12-02 08:18:40,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112062069] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:40,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326137589] [2024-12-02 08:18:40,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:40,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:18:40,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:18:40,755 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:18:40,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:18:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:40,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:18:40,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:18:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:42,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:18:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:44,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326137589] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:18:44,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:18:44,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2024-12-02 08:18:44,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313585283] [2024-12-02 08:18:44,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:18:44,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 08:18:44,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:44,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 08:18:44,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:18:44,309 INFO L87 Difference]: Start difference. First operand 395720 states and 487688 transitions. Second operand has 30 states, 30 states have (on average 13.566666666666666) internal successors, (407), 30 states have internal predecessors, (407), 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) [2024-12-02 08:19:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:19:18,244 INFO L93 Difference]: Finished difference Result 904083 states and 1115788 transitions. [2024-12-02 08:19:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 08:19:18,245 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.566666666666666) internal successors, (407), 30 states have internal predecessors, (407), 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 143 [2024-12-02 08:19:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:19:19,195 INFO L225 Difference]: With dead ends: 904083 [2024-12-02 08:19:19,195 INFO L226 Difference]: Without dead ends: 815409 [2024-12-02 08:19:19,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=404, Invalid=1666, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:19:19,300 INFO L435 NwaCegarLoop]: 1499 mSDtfsCounter, 10864 mSDsluCounter, 12308 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10864 SdHoareTripleChecker+Valid, 13807 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:19:19,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10864 Valid, 13807 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:19:19,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815409 states. [2024-12-02 08:19:50,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815409 to 667145. [2024-12-02 08:19:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667145 states, 667143 states have (on average 1.2254748981852466) internal successors, (817567), 667144 states have internal predecessors, (817567), 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) [2024-12-02 08:19:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667145 states to 667145 states and 817567 transitions. [2024-12-02 08:19:52,516 INFO L78 Accepts]: Start accepts. Automaton has 667145 states and 817567 transitions. Word has length 143 [2024-12-02 08:19:52,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:19:52,516 INFO L471 AbstractCegarLoop]: Abstraction has 667145 states and 817567 transitions. [2024-12-02 08:19:52,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.566666666666666) internal successors, (407), 30 states have internal predecessors, (407), 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) [2024-12-02 08:19:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand 667145 states and 817567 transitions. [2024-12-02 08:19:52,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 08:19:52,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:19:52,523 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:19:52,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 08:19:52,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 08:19:52,724 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:19:52,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:19:52,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1415052858, now seen corresponding path program 1 times [2024-12-02 08:19:52,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:19:52,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218600040] [2024-12-02 08:19:52,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:52,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:19:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:19:53,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:19:53,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218600040] [2024-12-02 08:19:53,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218600040] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:19:53,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334359466] [2024-12-02 08:19:53,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:19:53,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:19:53,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:19:53,754 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:19:53,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 08:19:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:19:54,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 08:19:54,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:19:58,198 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:19:58,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:20:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:20:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334359466] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:20:04,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:20:04,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 22, 26] total 56 [2024-12-02 08:20:04,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796227723] [2024-12-02 08:20:04,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:20:04,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 08:20:04,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:20:04,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 08:20:04,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2724, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 08:20:04,998 INFO L87 Difference]: Start difference. First operand 667145 states and 817567 transitions. Second operand has 56 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 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) [2024-12-02 08:21:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:21:45,247 INFO L93 Difference]: Finished difference Result 2157857 states and 2634937 transitions. [2024-12-02 08:21:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-12-02 08:21:45,247 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 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 143 [2024-12-02 08:21:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:21:48,024 INFO L225 Difference]: With dead ends: 2157857 [2024-12-02 08:21:48,025 INFO L226 Difference]: Without dead ends: 1985313 [2024-12-02 08:21:48,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12394 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=6068, Invalid=29842, Unknown=0, NotChecked=0, Total=35910 [2024-12-02 08:21:48,408 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 24396 mSDsluCounter, 20570 mSDsCounter, 0 mSdLazyCounter, 6126 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24396 SdHoareTripleChecker+Valid, 22183 SdHoareTripleChecker+Invalid, 6249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 6126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:21:48,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24396 Valid, 22183 Invalid, 6249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 6126 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 08:21:49,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985313 states. [2024-12-02 08:22:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985313 to 633587. [2024-12-02 08:22:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633587 states, 633585 states have (on average 1.2237695021188948) internal successors, (775362), 633586 states have internal predecessors, (775362), 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) [2024-12-02 08:22:29,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633587 states to 633587 states and 775362 transitions. [2024-12-02 08:22:29,741 INFO L78 Accepts]: Start accepts. Automaton has 633587 states and 775362 transitions. Word has length 143 [2024-12-02 08:22:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:29,741 INFO L471 AbstractCegarLoop]: Abstraction has 633587 states and 775362 transitions. [2024-12-02 08:22:29,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 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) [2024-12-02 08:22:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 633587 states and 775362 transitions. [2024-12-02 08:22:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 08:22:29,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:29,748 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:30,133 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forcibly destroying the process [2024-12-02 08:22:30,133 FATAL L548 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Could not destroy process within 200 ms, abandoning it [2024-12-02 08:22:30,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-12-02 08:22:30,134 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:30,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:30,134 INFO L85 PathProgramCache]: Analyzing trace with hash -315164742, now seen corresponding path program 1 times [2024-12-02 08:22:30,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:22:30,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251298737] [2024-12-02 08:22:30,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:30,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:22:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:30,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:22:30,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251298737] [2024-12-02 08:22:30,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251298737] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:30,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552649253] [2024-12-02 08:22:30,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:30,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:22:30,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:22:30,917 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:22:30,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 08:22:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:31,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:22:31,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:32,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:33,489 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:22:33,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552649253] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:22:33,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:22:33,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2024-12-02 08:22:33,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034682986] [2024-12-02 08:22:33,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:22:33,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 08:22:33,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:22:33,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 08:22:33,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:22:33,491 INFO L87 Difference]: Start difference. First operand 633587 states and 775362 transitions. Second operand has 30 states, 30 states have (on average 12.833333333333334) internal successors, (385), 30 states have internal predecessors, (385), 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) [2024-12-02 08:23:07,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:07,204 INFO L93 Difference]: Finished difference Result 899035 states and 1094932 transitions. [2024-12-02 08:23:07,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 08:23:07,204 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 12.833333333333334) internal successors, (385), 30 states have internal predecessors, (385), 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 143 [2024-12-02 08:23:07,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:08,016 INFO L225 Difference]: With dead ends: 899035 [2024-12-02 08:23:08,016 INFO L226 Difference]: Without dead ends: 732709 [2024-12-02 08:23:08,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=448, Invalid=1622, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:23:08,390 INFO L435 NwaCegarLoop]: 1516 mSDtfsCounter, 13191 mSDsluCounter, 12283 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13191 SdHoareTripleChecker+Valid, 13799 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:08,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13191 Valid, 13799 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:23:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732709 states. [2024-12-02 08:23:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732709 to 600487. [2024-12-02 08:23:41,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600487 states, 600485 states have (on average 1.2221787388527607) internal successors, (733900), 600486 states have internal predecessors, (733900), 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) [2024-12-02 08:23:42,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600487 states to 600487 states and 733900 transitions. [2024-12-02 08:23:42,089 INFO L78 Accepts]: Start accepts. Automaton has 600487 states and 733900 transitions. Word has length 143 [2024-12-02 08:23:42,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:42,089 INFO L471 AbstractCegarLoop]: Abstraction has 600487 states and 733900 transitions. [2024-12-02 08:23:42,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 12.833333333333334) internal successors, (385), 30 states have internal predecessors, (385), 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) [2024-12-02 08:23:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 600487 states and 733900 transitions. [2024-12-02 08:23:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 08:23:42,094 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:42,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:42,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-12-02 08:23:42,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:23:42,295 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:42,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1522238046, now seen corresponding path program 1 times [2024-12-02 08:23:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:23:42,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944150509] [2024-12-02 08:23:42,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:42,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:23:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:23:43,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:23:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944150509] [2024-12-02 08:23:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944150509] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:23:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150767530] [2024-12-02 08:23:43,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:43,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:23:43,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:23:43,434 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:23:43,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e95ef410-48b8-4649-b99d-365021a4ed68/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 08:23:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:43,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:23:43,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:23:44,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:23:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:23:46,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150767530] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:23:46,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:23:46,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 34 [2024-12-02 08:23:46,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104707508] [2024-12-02 08:23:46,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:23:46,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 08:23:46,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:23:46,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 08:23:46,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:23:46,245 INFO L87 Difference]: Start difference. First operand 600487 states and 733900 transitions. Second operand has 34 states, 34 states have (on average 11.852941176470589) internal successors, (403), 34 states have internal predecessors, (403), 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)