./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.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_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/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_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/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_a8376015-cbc0-4e5a-8860-0d256f432e60/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 d75a2391f4a22066ef2bb1ed925207911a0418d8f665bed417e6b9b74205fcd2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:29:29,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:29:29,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:29:29,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:29:29,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:29:29,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:29:29,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:29:29,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:29:29,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:29:29,562 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:29:29,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:29:29,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:29:29,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:29:29,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:29:29,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:29:29,564 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:29:29,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:29:29,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:29:29,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:29:29,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:29:29,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:29:29,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:29:29,566 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_a8376015-cbc0-4e5a-8860-0d256f432e60/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 -> d75a2391f4a22066ef2bb1ed925207911a0418d8f665bed417e6b9b74205fcd2 [2024-12-02 11:29:29,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:29:29,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:29:29,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:29:29,804 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:29:29,804 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:29:29,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-12-02 11:29:32,452 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/data/dff35443b/8fe30b8577164c0f96eeb9527f5958c8/FLAG32ecbd184 [2024-12-02 11:29:32,902 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:29:32,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-12-02 11:29:32,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/data/dff35443b/8fe30b8577164c0f96eeb9527f5958c8/FLAG32ecbd184 [2024-12-02 11:29:32,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/data/dff35443b/8fe30b8577164c0f96eeb9527f5958c8 [2024-12-02 11:29:33,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:29:33,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:29:33,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:29:33,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:29:33,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:29:33,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:29:33" (1/1) ... [2024-12-02 11:29:33,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0b9223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:33, skipping insertion in model container [2024-12-02 11:29:33,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:29:33" (1/1) ... [2024-12-02 11:29:33,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:29:33,392 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_a8376015-cbc0-4e5a-8860-0d256f432e60/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c[20454,20467] [2024-12-02 11:29:33,435 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_a8376015-cbc0-4e5a-8860-0d256f432e60/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c[27744,27757] [2024-12-02 11:29:33,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:29:34,006 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:29:34,040 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_a8376015-cbc0-4e5a-8860-0d256f432e60/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c[20454,20467] [2024-12-02 11:29:34,050 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_a8376015-cbc0-4e5a-8860-0d256f432e60/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c[27744,27757] [2024-12-02 11:29:34,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:29:34,463 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:29:34,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34 WrapperNode [2024-12-02 11:29:34,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:29:34,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:29:34,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:29:34,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:29:34,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:34,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:34,744 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-12-02 11:29:34,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:29:34,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:29:34,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:29:34,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:29:34,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:34,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:34,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:34,952 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 11:29:34,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:34,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,030 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:29:35,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:29:35,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:29:35,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:29:35,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (1/1) ... [2024-12-02 11:29:35,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:29:35,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:29:35,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:29:35,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:29:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:29:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:29:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:29:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:29:35,276 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:29:35,277 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:29:39,763 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-12-02 11:29:39,763 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:29:39,792 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:29:39,792 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 11:29:39,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:29:39 BoogieIcfgContainer [2024-12-02 11:29:39,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:29:39,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:29:39,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:29:39,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:29:39,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:29:33" (1/3) ... [2024-12-02 11:29:39,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2660b79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:29:39, skipping insertion in model container [2024-12-02 11:29:39,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:29:34" (2/3) ... [2024-12-02 11:29:39,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2660b79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:29:39, skipping insertion in model container [2024-12-02 11:29:39,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:29:39" (3/3) ... [2024-12-02 11:29:39,803 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-12-02 11:29:39,814 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:29:39,816 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label02.c that has 1 procedures, 932 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 11:29:39,885 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:29:39,896 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;@3bb3600f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:29:39,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:29:39,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 932 states, 929 states have (on average 1.9031216361679224) internal successors, (1768), 931 states have internal predecessors, (1768), 0 states have call successors, (0), 0 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 11:29:39,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 11:29:39,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:39,909 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] [2024-12-02 11:29:39,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:39,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash -28928260, now seen corresponding path program 1 times [2024-12-02 11:29:39,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778346114] [2024-12-02 11:29:39,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:39,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:40,120 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 11:29:40,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:40,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778346114] [2024-12-02 11:29:40,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778346114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:40,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:40,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:29:40,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767839089] [2024-12-02 11:29:40,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:40,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:29:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:40,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:29:40,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:29:40,149 INFO L87 Difference]: Start difference. First operand has 932 states, 929 states have (on average 1.9031216361679224) internal successors, (1768), 931 states have internal predecessors, (1768), 0 states have call successors, (0), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 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 11:29:40,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:40,223 INFO L93 Difference]: Finished difference Result 1806 states and 3426 transitions. [2024-12-02 11:29:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:29:40,224 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-12-02 11:29:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:40,237 INFO L225 Difference]: With dead ends: 1806 [2024-12-02 11:29:40,237 INFO L226 Difference]: Without dead ends: 866 [2024-12-02 11:29:40,242 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 11:29:40,245 INFO L435 NwaCegarLoop]: 1699 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, 1699 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 11:29:40,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-12-02 11:29:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-12-02 11:29:40,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.8923611111111112) internal successors, (1635), 865 states have internal predecessors, (1635), 0 states have call successors, (0), 0 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 11:29:40,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1635 transitions. [2024-12-02 11:29:40,311 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1635 transitions. Word has length 28 [2024-12-02 11:29:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:40,312 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1635 transitions. [2024-12-02 11:29:40,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 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 11:29:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1635 transitions. [2024-12-02 11:29:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 11:29:40,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:40,314 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] [2024-12-02 11:29:40,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:29:40,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:40,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash 189926458, now seen corresponding path program 1 times [2024-12-02 11:29:40,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:40,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781659507] [2024-12-02 11:29:40,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:40,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:40,560 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 11:29:40,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781659507] [2024-12-02 11:29:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781659507] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:40,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:40,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:29:40,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750385116] [2024-12-02 11:29:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:40,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:29:40,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:40,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:29:40,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:29:40,563 INFO L87 Difference]: Start difference. First operand 866 states and 1635 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 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 11:29:40,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:40,723 INFO L93 Difference]: Finished difference Result 926 states and 1729 transitions. [2024-12-02 11:29:40,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:29:40,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-12-02 11:29:40,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:40,728 INFO L225 Difference]: With dead ends: 926 [2024-12-02 11:29:40,728 INFO L226 Difference]: Without dead ends: 866 [2024-12-02 11:29:40,728 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 11:29:40,729 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 0 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6477 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:40,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6477 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:29:40,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-12-02 11:29:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-12-02 11:29:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 864 states have (on average 1.8344907407407407) internal successors, (1585), 865 states have internal predecessors, (1585), 0 states have call successors, (0), 0 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 11:29:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1585 transitions. [2024-12-02 11:29:40,753 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1585 transitions. Word has length 28 [2024-12-02 11:29:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:40,754 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1585 transitions. [2024-12-02 11:29:40,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 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 11:29:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1585 transitions. [2024-12-02 11:29:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 11:29:40,755 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:40,755 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] [2024-12-02 11:29:40,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:29:40,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:40,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1515998071, now seen corresponding path program 1 times [2024-12-02 11:29:40,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:40,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062596453] [2024-12-02 11:29:40,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:40,975 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 11:29:40,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:40,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062596453] [2024-12-02 11:29:40,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062596453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:40,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:40,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482130250] [2024-12-02 11:29:40,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:40,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:29:40,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:40,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:29:40,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:29:40,977 INFO L87 Difference]: Start difference. First operand 866 states and 1585 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:46,882 INFO L93 Difference]: Finished difference Result 3121 states and 5894 transitions. [2024-12-02 11:29:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:29:46,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-12-02 11:29:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:46,889 INFO L225 Difference]: With dead ends: 3121 [2024-12-02 11:29:46,889 INFO L226 Difference]: Without dead ends: 2368 [2024-12-02 11:29:46,890 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 11:29:46,891 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 2479 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:46,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2479 Valid, 839 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-12-02 11:29:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2024-12-02 11:29:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2368. [2024-12-02 11:29:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2366 states have (on average 1.5633981403212172) internal successors, (3699), 2367 states have internal predecessors, (3699), 0 states have call successors, (0), 0 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 11:29:46,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3699 transitions. [2024-12-02 11:29:46,949 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3699 transitions. Word has length 63 [2024-12-02 11:29:46,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:46,950 INFO L471 AbstractCegarLoop]: Abstraction has 2368 states and 3699 transitions. [2024-12-02 11:29:46,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3699 transitions. [2024-12-02 11:29:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 11:29:46,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:46,952 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:29:46,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:29:46,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:46,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:46,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1109970983, now seen corresponding path program 1 times [2024-12-02 11:29:46,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:46,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159454578] [2024-12-02 11:29:46,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:46,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:47,256 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 11:29:47,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:47,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159454578] [2024-12-02 11:29:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159454578] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:47,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:29:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637687889] [2024-12-02 11:29:47,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:47,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:29:47,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:47,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:29:47,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:29:47,258 INFO L87 Difference]: Start difference. First operand 2368 states and 3699 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:47,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:47,629 INFO L93 Difference]: Finished difference Result 3152 states and 4959 transitions. [2024-12-02 11:29:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:29:47,630 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-12-02 11:29:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:47,639 INFO L225 Difference]: With dead ends: 3152 [2024-12-02 11:29:47,639 INFO L226 Difference]: Without dead ends: 3096 [2024-12-02 11:29:47,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:29:47,641 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 11614 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11614 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:47,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11614 Valid, 4325 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:29:47,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2024-12-02 11:29:47,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2422. [2024-12-02 11:29:47,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2420 states have (on average 1.5644628099173554) internal successors, (3786), 2421 states have internal predecessors, (3786), 0 states have call successors, (0), 0 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 11:29:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3786 transitions. [2024-12-02 11:29:47,684 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3786 transitions. Word has length 77 [2024-12-02 11:29:47,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:47,684 INFO L471 AbstractCegarLoop]: Abstraction has 2422 states and 3786 transitions. [2024-12-02 11:29:47,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:47,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3786 transitions. [2024-12-02 11:29:47,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:29:47,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:47,686 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] [2024-12-02 11:29:47,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:29:47,686 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:47,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:47,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1349050793, now seen corresponding path program 1 times [2024-12-02 11:29:47,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:47,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460617849] [2024-12-02 11:29:47,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:47,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:47,816 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 11:29:47,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:47,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460617849] [2024-12-02 11:29:47,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460617849] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:47,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:47,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60769702] [2024-12-02 11:29:47,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:47,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:47,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:47,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:47,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:47,818 INFO L87 Difference]: Start difference. First operand 2422 states and 3786 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:29:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:47,861 INFO L93 Difference]: Finished difference Result 2631 states and 4121 transitions. [2024-12-02 11:29:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:47,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-12-02 11:29:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:47,868 INFO L225 Difference]: With dead ends: 2631 [2024-12-02 11:29:47,868 INFO L226 Difference]: Without dead ends: 2521 [2024-12-02 11:29:47,869 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 11:29:47,870 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 1500 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:47,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1664 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:47,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2024-12-02 11:29:47,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2517. [2024-12-02 11:29:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2515 states have (on average 1.5650099403578528) internal successors, (3936), 2516 states have internal predecessors, (3936), 0 states have call successors, (0), 0 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 11:29:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3936 transitions. [2024-12-02 11:29:47,915 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3936 transitions. Word has length 79 [2024-12-02 11:29:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:47,915 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 3936 transitions. [2024-12-02 11:29:47,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:29:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3936 transitions. [2024-12-02 11:29:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:29:47,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:47,916 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] [2024-12-02 11:29:47,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:29:47,917 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:47,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1415544305, now seen corresponding path program 1 times [2024-12-02 11:29:47,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:47,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139146594] [2024-12-02 11:29:47,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:47,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:48,407 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 11:29:48,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:48,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139146594] [2024-12-02 11:29:48,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139146594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:48,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:48,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:29:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567158495] [2024-12-02 11:29:48,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:48,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:29:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:48,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:29:48,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:29:48,410 INFO L87 Difference]: Start difference. First operand 2517 states and 3936 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:29:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:48,791 INFO L93 Difference]: Finished difference Result 2724 states and 4264 transitions. [2024-12-02 11:29:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:29:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-12-02 11:29:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:48,799 INFO L225 Difference]: With dead ends: 2724 [2024-12-02 11:29:48,799 INFO L226 Difference]: Without dead ends: 2519 [2024-12-02 11:29:48,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:29:48,801 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 1562 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:48,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 2193 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:29:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2024-12-02 11:29:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2517. [2024-12-02 11:29:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2515 states have (on average 1.5642147117296223) internal successors, (3934), 2516 states have internal predecessors, (3934), 0 states have call successors, (0), 0 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 11:29:48,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3934 transitions. [2024-12-02 11:29:48,839 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3934 transitions. Word has length 79 [2024-12-02 11:29:48,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:48,839 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 3934 transitions. [2024-12-02 11:29:48,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 11:29:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3934 transitions. [2024-12-02 11:29:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 11:29:48,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:48,841 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:29:48,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:29:48,841 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:48,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash 517477589, now seen corresponding path program 1 times [2024-12-02 11:29:48,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:48,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011044162] [2024-12-02 11:29:48,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:48,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:49,114 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 11:29:49,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:49,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011044162] [2024-12-02 11:29:49,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011044162] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:49,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:49,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:29:49,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795907879] [2024-12-02 11:29:49,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:49,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:29:49,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:49,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:29:49,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:29:49,116 INFO L87 Difference]: Start difference. First operand 2517 states and 3934 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:49,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:49,185 INFO L93 Difference]: Finished difference Result 2525 states and 3943 transitions. [2024-12-02 11:29:49,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:29:49,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 11:29:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:49,191 INFO L225 Difference]: With dead ends: 2525 [2024-12-02 11:29:49,191 INFO L226 Difference]: Without dead ends: 2523 [2024-12-02 11:29:49,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:29:49,193 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 0 mSDsluCounter, 9461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11040 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:49,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11040 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-12-02 11:29:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2024-12-02 11:29:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2521 states have (on average 1.562475208250694) internal successors, (3939), 2522 states have internal predecessors, (3939), 0 states have call successors, (0), 0 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 11:29:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3939 transitions. [2024-12-02 11:29:49,231 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3939 transitions. Word has length 80 [2024-12-02 11:29:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:49,231 INFO L471 AbstractCegarLoop]: Abstraction has 2523 states and 3939 transitions. [2024-12-02 11:29:49,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3939 transitions. [2024-12-02 11:29:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:29:49,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:49,232 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] [2024-12-02 11:29:49,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:29:49,232 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:49,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:49,233 INFO L85 PathProgramCache]: Analyzing trace with hash -927531695, now seen corresponding path program 1 times [2024-12-02 11:29:49,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:49,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527739116] [2024-12-02 11:29:49,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:49,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:49,294 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 11:29:49,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:49,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527739116] [2024-12-02 11:29:49,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527739116] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:49,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:49,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949456379] [2024-12-02 11:29:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:49,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:49,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:49,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:49,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:49,295 INFO L87 Difference]: Start difference. First operand 2523 states and 3939 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:49,324 INFO L93 Difference]: Finished difference Result 2929 states and 4571 transitions. [2024-12-02 11:29:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:49,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 11:29:49,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:49,330 INFO L225 Difference]: With dead ends: 2929 [2024-12-02 11:29:49,330 INFO L226 Difference]: Without dead ends: 2718 [2024-12-02 11:29:49,331 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 11:29:49,332 INFO L435 NwaCegarLoop]: 1652 mSDtfsCounter, 1517 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1747 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 11:29:49,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1747 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2024-12-02 11:29:49,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 2716. [2024-12-02 11:29:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2714 states have (on average 1.5607958732498157) internal successors, (4236), 2715 states have internal predecessors, (4236), 0 states have call successors, (0), 0 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 11:29:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4236 transitions. [2024-12-02 11:29:49,370 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4236 transitions. Word has length 81 [2024-12-02 11:29:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:49,371 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4236 transitions. [2024-12-02 11:29:49,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4236 transitions. [2024-12-02 11:29:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:29:49,372 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:49,372 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] [2024-12-02 11:29:49,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:29:49,372 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:49,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash -764617135, now seen corresponding path program 1 times [2024-12-02 11:29:49,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:49,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371159076] [2024-12-02 11:29:49,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:49,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:49,432 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 11:29:49,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:49,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371159076] [2024-12-02 11:29:49,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371159076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:49,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:49,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:49,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900027407] [2024-12-02 11:29:49,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:49,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:49,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:49,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:49,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:49,433 INFO L87 Difference]: Start difference. First operand 2716 states and 4236 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:49,470 INFO L93 Difference]: Finished difference Result 3492 states and 5434 transitions. [2024-12-02 11:29:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:49,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 11:29:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:49,477 INFO L225 Difference]: With dead ends: 3492 [2024-12-02 11:29:49,477 INFO L226 Difference]: Without dead ends: 3088 [2024-12-02 11:29:49,478 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 11:29:49,479 INFO L435 NwaCegarLoop]: 1650 mSDtfsCounter, 1515 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1749 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 11:29:49,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2024-12-02 11:29:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 3086. [2024-12-02 11:29:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 3084 states have (on average 1.5557717250324254) internal successors, (4798), 3085 states have internal predecessors, (4798), 0 states have call successors, (0), 0 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 11:29:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 4798 transitions. [2024-12-02 11:29:49,529 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 4798 transitions. Word has length 81 [2024-12-02 11:29:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:49,530 INFO L471 AbstractCegarLoop]: Abstraction has 3086 states and 4798 transitions. [2024-12-02 11:29:49,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 4798 transitions. [2024-12-02 11:29:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:29:49,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:49,531 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] [2024-12-02 11:29:49,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:29:49,531 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:49,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:49,532 INFO L85 PathProgramCache]: Analyzing trace with hash 737501265, now seen corresponding path program 1 times [2024-12-02 11:29:49,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:49,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458776687] [2024-12-02 11:29:49,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:49,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:49,587 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 11:29:49,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458776687] [2024-12-02 11:29:49,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458776687] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:49,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:49,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798415557] [2024-12-02 11:29:49,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:49,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:49,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:49,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:49,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:49,588 INFO L87 Difference]: Start difference. First operand 3086 states and 4798 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:49,627 INFO L93 Difference]: Finished difference Result 4570 states and 7064 transitions. [2024-12-02 11:29:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:49,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 11:29:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:49,639 INFO L225 Difference]: With dead ends: 4570 [2024-12-02 11:29:49,639 INFO L226 Difference]: Without dead ends: 3796 [2024-12-02 11:29:49,641 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 11:29:49,641 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 1511 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1745 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 11:29:49,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1745 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:49,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3796 states. [2024-12-02 11:29:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3796 to 3794. [2024-12-02 11:29:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 3792 states have (on average 1.544831223628692) internal successors, (5858), 3793 states have internal predecessors, (5858), 0 states have call successors, (0), 0 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 11:29:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 5858 transitions. [2024-12-02 11:29:49,709 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 5858 transitions. Word has length 81 [2024-12-02 11:29:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:49,709 INFO L471 AbstractCegarLoop]: Abstraction has 3794 states and 5858 transitions. [2024-12-02 11:29:49,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 5858 transitions. [2024-12-02 11:29:49,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:29:49,710 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:49,710 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] [2024-12-02 11:29:49,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:29:49,710 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:49,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:49,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1477967535, now seen corresponding path program 1 times [2024-12-02 11:29:49,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:49,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486965656] [2024-12-02 11:29:49,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:49,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:49,768 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 11:29:49,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:49,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486965656] [2024-12-02 11:29:49,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486965656] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:49,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:49,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016851289] [2024-12-02 11:29:49,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:49,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:49,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:49,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:49,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:49,770 INFO L87 Difference]: Start difference. First operand 3794 states and 5858 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:49,831 INFO L93 Difference]: Finished difference Result 6630 states and 10132 transitions. [2024-12-02 11:29:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:49,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 11:29:49,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:49,844 INFO L225 Difference]: With dead ends: 6630 [2024-12-02 11:29:49,844 INFO L226 Difference]: Without dead ends: 5148 [2024-12-02 11:29:49,846 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 11:29:49,847 INFO L435 NwaCegarLoop]: 1636 mSDtfsCounter, 1509 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1747 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 11:29:49,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1747 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5148 states. [2024-12-02 11:29:49,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5148 to 5146. [2024-12-02 11:29:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 5144 states have (on average 1.526049766718507) internal successors, (7850), 5145 states have internal predecessors, (7850), 0 states have call successors, (0), 0 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 11:29:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 7850 transitions. [2024-12-02 11:29:49,951 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 7850 transitions. Word has length 81 [2024-12-02 11:29:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:49,951 INFO L471 AbstractCegarLoop]: Abstraction has 5146 states and 7850 transitions. [2024-12-02 11:29:49,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 7850 transitions. [2024-12-02 11:29:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:29:49,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:49,953 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] [2024-12-02 11:29:49,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:29:49,953 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:49,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash 302965329, now seen corresponding path program 1 times [2024-12-02 11:29:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:49,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850858605] [2024-12-02 11:29:49,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:49,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:50,007 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 11:29:50,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:50,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850858605] [2024-12-02 11:29:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850858605] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289056020] [2024-12-02 11:29:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:50,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:50,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:50,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:50,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:50,008 INFO L87 Difference]: Start difference. First operand 5146 states and 7850 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:50,130 INFO L93 Difference]: Finished difference Result 10558 states and 15884 transitions. [2024-12-02 11:29:50,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:50,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 11:29:50,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:50,145 INFO L225 Difference]: With dead ends: 10558 [2024-12-02 11:29:50,145 INFO L226 Difference]: Without dead ends: 7724 [2024-12-02 11:29:50,149 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 11:29:50,149 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 1507 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1749 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 11:29:50,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2024-12-02 11:29:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7722. [2024-12-02 11:29:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7720 states have (on average 1.499740932642487) internal successors, (11578), 7721 states have internal predecessors, (11578), 0 states have call successors, (0), 0 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 11:29:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 11578 transitions. [2024-12-02 11:29:50,302 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 11578 transitions. Word has length 81 [2024-12-02 11:29:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:50,302 INFO L471 AbstractCegarLoop]: Abstraction has 7722 states and 11578 transitions. [2024-12-02 11:29:50,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:50,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 11578 transitions. [2024-12-02 11:29:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:29:50,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:50,304 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] [2024-12-02 11:29:50,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:29:50,304 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:50,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:50,304 INFO L85 PathProgramCache]: Analyzing trace with hash -500760751, now seen corresponding path program 1 times [2024-12-02 11:29:50,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:50,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295930566] [2024-12-02 11:29:50,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:50,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:50,352 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 11:29:50,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:50,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295930566] [2024-12-02 11:29:50,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295930566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:50,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:50,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:50,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855747719] [2024-12-02 11:29:50,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:50,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:50,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:50,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:50,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:50,353 INFO L87 Difference]: Start difference. First operand 7722 states and 11578 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:50,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:50,488 INFO L93 Difference]: Finished difference Result 18030 states and 26620 transitions. [2024-12-02 11:29:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:50,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-12-02 11:29:50,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:50,508 INFO L225 Difference]: With dead ends: 18030 [2024-12-02 11:29:50,508 INFO L226 Difference]: Without dead ends: 12620 [2024-12-02 11:29:50,514 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 11:29:50,514 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 1513 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1751 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 11:29:50,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1751 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:50,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12620 states. [2024-12-02 11:29:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12620 to 12618. [2024-12-02 11:29:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12618 states, 12616 states have (on average 1.4681357006975269) internal successors, (18522), 12617 states have internal predecessors, (18522), 0 states have call successors, (0), 0 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 11:29:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12618 states to 12618 states and 18522 transitions. [2024-12-02 11:29:50,743 INFO L78 Accepts]: Start accepts. Automaton has 12618 states and 18522 transitions. Word has length 81 [2024-12-02 11:29:50,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:50,743 INFO L471 AbstractCegarLoop]: Abstraction has 12618 states and 18522 transitions. [2024-12-02 11:29:50,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 11:29:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 12618 states and 18522 transitions. [2024-12-02 11:29:50,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-12-02 11:29:50,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:50,744 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] [2024-12-02 11:29:50,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:29:50,744 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:50,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:50,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1125158260, now seen corresponding path program 1 times [2024-12-02 11:29:50,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:50,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911083821] [2024-12-02 11:29:50,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:50,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:50,836 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 11:29:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:50,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911083821] [2024-12-02 11:29:50,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911083821] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:50,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:50,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:29:50,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011061074] [2024-12-02 11:29:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:50,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:29:50,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:50,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:29:50,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:29:50,838 INFO L87 Difference]: Start difference. First operand 12618 states and 18522 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:29:51,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:51,126 INFO L93 Difference]: Finished difference Result 23377 states and 34272 transitions. [2024-12-02 11:29:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:29:51,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-12-02 11:29:51,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:51,160 INFO L225 Difference]: With dead ends: 23377 [2024-12-02 11:29:51,160 INFO L226 Difference]: Without dead ends: 17614 [2024-12-02 11:29:51,170 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 11:29:51,170 INFO L435 NwaCegarLoop]: 1657 mSDtfsCounter, 1516 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1748 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 11:29:51,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:29:51,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17614 states. [2024-12-02 11:29:51,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17614 to 17612. [2024-12-02 11:29:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17612 states, 17610 states have (on average 1.4553094832481546) internal successors, (25628), 17611 states have internal predecessors, (25628), 0 states have call successors, (0), 0 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 11:29:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17612 states to 17612 states and 25628 transitions. [2024-12-02 11:29:51,592 INFO L78 Accepts]: Start accepts. Automaton has 17612 states and 25628 transitions. Word has length 83 [2024-12-02 11:29:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:51,592 INFO L471 AbstractCegarLoop]: Abstraction has 17612 states and 25628 transitions. [2024-12-02 11:29:51,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 11:29:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 17612 states and 25628 transitions. [2024-12-02 11:29:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:29:51,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:51,597 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] [2024-12-02 11:29:51,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:29:51,597 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:51,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash -293163275, now seen corresponding path program 1 times [2024-12-02 11:29:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:51,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426522966] [2024-12-02 11:29:51,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:51,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 11:29:51,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:51,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426522966] [2024-12-02 11:29:51,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426522966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:51,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:51,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:29:51,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963752373] [2024-12-02 11:29:51,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:51,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:29:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:51,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:29:51,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:29:51,882 INFO L87 Difference]: Start difference. First operand 17612 states and 25628 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:53,706 INFO L93 Difference]: Finished difference Result 127836 states and 184100 transitions. [2024-12-02 11:29:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:29:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-12-02 11:29:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:53,848 INFO L225 Difference]: With dead ends: 127836 [2024-12-02 11:29:53,848 INFO L226 Difference]: Without dead ends: 112538 [2024-12-02 11:29:53,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:29:53,871 INFO L435 NwaCegarLoop]: 1675 mSDtfsCounter, 9907 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9907 SdHoareTripleChecker+Valid, 4412 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:53,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9907 Valid, 4412 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:29:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112538 states. [2024-12-02 11:29:54,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112538 to 32908. [2024-12-02 11:29:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32908 states, 32906 states have (on average 1.4420470430924452) internal successors, (47452), 32907 states have internal predecessors, (47452), 0 states have call successors, (0), 0 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 11:29:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32908 states to 32908 states and 47452 transitions. [2024-12-02 11:29:55,141 INFO L78 Accepts]: Start accepts. Automaton has 32908 states and 47452 transitions. Word has length 104 [2024-12-02 11:29:55,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:55,141 INFO L471 AbstractCegarLoop]: Abstraction has 32908 states and 47452 transitions. [2024-12-02 11:29:55,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:29:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 32908 states and 47452 transitions. [2024-12-02 11:29:55,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:29:55,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:55,146 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] [2024-12-02 11:29:55,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:29:55,146 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:55,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash -130248715, now seen corresponding path program 1 times [2024-12-02 11:29:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705025866] [2024-12-02 11:29:55,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 11:29:55,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:55,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705025866] [2024-12-02 11:29:55,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705025866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:55,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:55,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:29:55,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459914794] [2024-12-02 11:29:55,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:55,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:29:55,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:55,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:29:55,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:29:55,392 INFO L87 Difference]: Start difference. First operand 32908 states and 47452 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 11:29:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:58,271 INFO L93 Difference]: Finished difference Result 143132 states and 205924 transitions. [2024-12-02 11:29:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:29:58,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 104 [2024-12-02 11:29:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:58,430 INFO L225 Difference]: With dead ends: 143132 [2024-12-02 11:29:58,430 INFO L226 Difference]: Without dead ends: 127834 [2024-12-02 11:29:58,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:29:58,459 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 9953 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9953 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:58,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9953 Valid, 4275 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:29:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127834 states. [2024-12-02 11:30:00,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127834 to 55884. [2024-12-02 11:30:00,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55884 states, 55882 states have (on average 1.4320890447729144) internal successors, (80028), 55883 states have internal predecessors, (80028), 0 states have call successors, (0), 0 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 11:30:00,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55884 states to 55884 states and 80028 transitions. [2024-12-02 11:30:00,332 INFO L78 Accepts]: Start accepts. Automaton has 55884 states and 80028 transitions. Word has length 104 [2024-12-02 11:30:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:00,332 INFO L471 AbstractCegarLoop]: Abstraction has 55884 states and 80028 transitions. [2024-12-02 11:30:00,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 11:30:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand 55884 states and 80028 transitions. [2024-12-02 11:30:00,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:30:00,338 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:00,338 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] [2024-12-02 11:30:00,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:30:00,338 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:00,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:00,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1371869685, now seen corresponding path program 1 times [2024-12-02 11:30:00,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:00,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581930375] [2024-12-02 11:30:00,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 11:30:00,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:00,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581930375] [2024-12-02 11:30:00,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581930375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:00,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:00,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:30:00,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920498774] [2024-12-02 11:30:00,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:00,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:30:00,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:00,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:30:00,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:30:00,589 INFO L87 Difference]: Start difference. First operand 55884 states and 80028 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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 11:30:03,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:03,164 INFO L93 Difference]: Finished difference Result 158428 states and 227748 transitions. [2024-12-02 11:30:03,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:30:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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 104 [2024-12-02 11:30:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:03,316 INFO L225 Difference]: With dead ends: 158428 [2024-12-02 11:30:03,316 INFO L226 Difference]: Without dead ends: 143130 [2024-12-02 11:30:03,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:30:03,343 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 10022 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10022 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:03,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10022 Valid, 4306 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:30:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143130 states. [2024-12-02 11:30:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143130 to 71180. [2024-12-02 11:30:05,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71180 states, 71178 states have (on average 1.4309477647587738) internal successors, (101852), 71179 states have internal predecessors, (101852), 0 states have call successors, (0), 0 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 11:30:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71180 states to 71180 states and 101852 transitions. [2024-12-02 11:30:05,798 INFO L78 Accepts]: Start accepts. Automaton has 71180 states and 101852 transitions. Word has length 104 [2024-12-02 11:30:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:05,799 INFO L471 AbstractCegarLoop]: Abstraction has 71180 states and 101852 transitions. [2024-12-02 11:30:05,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 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 11:30:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand 71180 states and 101852 transitions. [2024-12-02 11:30:05,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:30:05,803 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:05,803 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] [2024-12-02 11:30:05,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:30:05,803 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:05,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:05,803 INFO L85 PathProgramCache]: Analyzing trace with hash -843599115, now seen corresponding path program 1 times [2024-12-02 11:30:05,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:05,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636079219] [2024-12-02 11:30:05,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:05,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 11:30:06,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:06,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636079219] [2024-12-02 11:30:06,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636079219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:06,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:06,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:30:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464423975] [2024-12-02 11:30:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:06,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:30:06,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:06,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:30:06,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:30:06,024 INFO L87 Difference]: Start difference. First operand 71180 states and 101852 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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 11:30:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:09,154 INFO L93 Difference]: Finished difference Result 173724 states and 249572 transitions. [2024-12-02 11:30:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:30:09,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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 104 [2024-12-02 11:30:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:09,309 INFO L225 Difference]: With dead ends: 173724 [2024-12-02 11:30:09,310 INFO L226 Difference]: Without dead ends: 158426 [2024-12-02 11:30:09,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:30:09,336 INFO L435 NwaCegarLoop]: 1666 mSDtfsCounter, 10093 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10093 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:09,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10093 Valid, 4243 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:30:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158426 states. [2024-12-02 11:30:11,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158426 to 86476. [2024-12-02 11:30:11,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86476 states, 86474 states have (on average 1.4302102366029095) internal successors, (123676), 86475 states have internal predecessors, (123676), 0 states have call successors, (0), 0 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 11:30:11,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86476 states to 86476 states and 123676 transitions. [2024-12-02 11:30:11,695 INFO L78 Accepts]: Start accepts. Automaton has 86476 states and 123676 transitions. Word has length 104 [2024-12-02 11:30:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:11,695 INFO L471 AbstractCegarLoop]: Abstraction has 86476 states and 123676 transitions. [2024-12-02 11:30:11,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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 11:30:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 86476 states and 123676 transitions. [2024-12-02 11:30:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:30:11,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:11,699 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] [2024-12-02 11:30:11,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:30:11,699 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:11,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:11,699 INFO L85 PathProgramCache]: Analyzing trace with hash 937333749, now seen corresponding path program 1 times [2024-12-02 11:30:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:11,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611861572] [2024-12-02 11:30:11,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 11:30:11,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611861572] [2024-12-02 11:30:11,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611861572] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:11,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:11,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:30:11,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114835796] [2024-12-02 11:30:11,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:11,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:30:11,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:11,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:30:11,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:30:11,910 INFO L87 Difference]: Start difference. First operand 86476 states and 123676 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 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 11:30:16,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:16,194 INFO L93 Difference]: Finished difference Result 189020 states and 271396 transitions. [2024-12-02 11:30:16,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:30:16,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 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 104 [2024-12-02 11:30:16,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:16,362 INFO L225 Difference]: With dead ends: 189020 [2024-12-02 11:30:16,362 INFO L226 Difference]: Without dead ends: 173722 [2024-12-02 11:30:16,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:30:16,389 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 9943 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9943 SdHoareTripleChecker+Valid, 4330 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:16,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9943 Valid, 4330 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:30:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173722 states. [2024-12-02 11:30:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173722 to 101772. [2024-12-02 11:30:19,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101772 states, 101770 states have (on average 1.4296944089613834) internal successors, (145500), 101771 states have internal predecessors, (145500), 0 states have call successors, (0), 0 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 11:30:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101772 states to 101772 states and 145500 transitions. [2024-12-02 11:30:19,213 INFO L78 Accepts]: Start accepts. Automaton has 101772 states and 145500 transitions. Word has length 104 [2024-12-02 11:30:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:19,213 INFO L471 AbstractCegarLoop]: Abstraction has 101772 states and 145500 transitions. [2024-12-02 11:30:19,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 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 11:30:19,214 INFO L276 IsEmpty]: Start isEmpty. Operand 101772 states and 145500 transitions. [2024-12-02 11:30:19,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:30:19,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:19,217 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] [2024-12-02 11:30:19,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:30:19,217 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:19,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:19,218 INFO L85 PathProgramCache]: Analyzing trace with hash 133607669, now seen corresponding path program 1 times [2024-12-02 11:30:19,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:19,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190843945] [2024-12-02 11:30:19,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:19,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 11:30:19,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:19,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190843945] [2024-12-02 11:30:19,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190843945] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:19,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:19,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:30:19,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855186741] [2024-12-02 11:30:19,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:19,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:30:19,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:19,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:30:19,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:30:19,365 INFO L87 Difference]: Start difference. First operand 101772 states and 145500 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 11:30:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:23,246 INFO L93 Difference]: Finished difference Result 204316 states and 293220 transitions. [2024-12-02 11:30:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:30:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 104 [2024-12-02 11:30:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:23,431 INFO L225 Difference]: With dead ends: 204316 [2024-12-02 11:30:23,431 INFO L226 Difference]: Without dead ends: 189018 [2024-12-02 11:30:23,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:30:23,465 INFO L435 NwaCegarLoop]: 1674 mSDtfsCounter, 9837 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9837 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:23,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9837 Valid, 4539 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:30:23,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189018 states. [2024-12-02 11:30:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189018 to 117068. [2024-12-02 11:30:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117068 states, 117066 states have (on average 1.4293133787777834) internal successors, (167324), 117067 states have internal predecessors, (167324), 0 states have call successors, (0), 0 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 11:30:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117068 states to 117068 states and 167324 transitions. [2024-12-02 11:30:27,693 INFO L78 Accepts]: Start accepts. Automaton has 117068 states and 167324 transitions. Word has length 104 [2024-12-02 11:30:27,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:27,693 INFO L471 AbstractCegarLoop]: Abstraction has 117068 states and 167324 transitions. [2024-12-02 11:30:27,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 11:30:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 117068 states and 167324 transitions. [2024-12-02 11:30:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:30:27,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:27,700 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] [2024-12-02 11:30:27,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:30:27,700 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:27,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash 388736525, now seen corresponding path program 1 times [2024-12-02 11:30:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853041469] [2024-12-02 11:30:27,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:27,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:27,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:27,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853041469] [2024-12-02 11:30:27,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853041469] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:27,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:27,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:27,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723348657] [2024-12-02 11:30:27,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:27,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:27,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:27,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:27,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:27,808 INFO L87 Difference]: Start difference. First operand 117068 states and 167324 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:30:29,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:29,499 INFO L93 Difference]: Finished difference Result 197736 states and 283511 transitions. [2024-12-02 11:30:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:29,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 11:30:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:29,586 INFO L225 Difference]: With dead ends: 197736 [2024-12-02 11:30:29,586 INFO L226 Difference]: Without dead ends: 82982 [2024-12-02 11:30:29,641 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 11:30:29,641 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 66 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3211 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 11:30:29,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3211 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82982 states. [2024-12-02 11:30:31,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82982 to 82980. [2024-12-02 11:30:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82980 states, 82978 states have (on average 1.432138639157367) internal successors, (118836), 82979 states have internal predecessors, (118836), 0 states have call successors, (0), 0 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 11:30:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82980 states to 82980 states and 118836 transitions. [2024-12-02 11:30:31,819 INFO L78 Accepts]: Start accepts. Automaton has 82980 states and 118836 transitions. Word has length 106 [2024-12-02 11:30:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:31,819 INFO L471 AbstractCegarLoop]: Abstraction has 82980 states and 118836 transitions. [2024-12-02 11:30:31,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:30:31,819 INFO L276 IsEmpty]: Start isEmpty. Operand 82980 states and 118836 transitions. [2024-12-02 11:30:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:30:31,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:31,822 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] [2024-12-02 11:30:31,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:30:31,823 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:31,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1382462672, now seen corresponding path program 1 times [2024-12-02 11:30:31,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:31,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026010783] [2024-12-02 11:30:31,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 11:30:31,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026010783] [2024-12-02 11:30:31,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026010783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:31,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:31,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:30:31,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293802046] [2024-12-02 11:30:31,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:31,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:30:31,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:31,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:30:31,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:30:31,971 INFO L87 Difference]: Start difference. First operand 82980 states and 118836 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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 11:30:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:35,342 INFO L93 Difference]: Finished difference Result 158260 states and 227260 transitions. [2024-12-02 11:30:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:30:35,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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 106 [2024-12-02 11:30:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:35,467 INFO L225 Difference]: With dead ends: 158260 [2024-12-02 11:30:35,468 INFO L226 Difference]: Without dead ends: 147506 [2024-12-02 11:30:35,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:30:35,489 INFO L435 NwaCegarLoop]: 1664 mSDtfsCounter, 9914 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9914 SdHoareTripleChecker+Valid, 4670 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:35,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9914 Valid, 4670 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:30:35,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147506 states. [2024-12-02 11:30:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147506 to 93732. [2024-12-02 11:30:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93732 states, 93730 states have (on average 1.4317294356129309) internal successors, (134196), 93731 states have internal predecessors, (134196), 0 states have call successors, (0), 0 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 11:30:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93732 states to 93732 states and 134196 transitions. [2024-12-02 11:30:38,134 INFO L78 Accepts]: Start accepts. Automaton has 93732 states and 134196 transitions. Word has length 106 [2024-12-02 11:30:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:38,135 INFO L471 AbstractCegarLoop]: Abstraction has 93732 states and 134196 transitions. [2024-12-02 11:30:38,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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 11:30:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 93732 states and 134196 transitions. [2024-12-02 11:30:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:30:38,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:38,138 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] [2024-12-02 11:30:38,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:30:38,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:38,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:38,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1784794265, now seen corresponding path program 1 times [2024-12-02 11:30:38,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:38,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16626675] [2024-12-02 11:30:38,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:38,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:38,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:38,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16626675] [2024-12-02 11:30:38,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16626675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43485566] [2024-12-02 11:30:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:38,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:38,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:38,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:38,244 INFO L87 Difference]: Start difference. First operand 93732 states and 134196 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 11:30:39,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:39,812 INFO L93 Difference]: Finished difference Result 139432 states and 199478 transitions. [2024-12-02 11:30:39,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:39,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-12-02 11:30:39,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:39,858 INFO L225 Difference]: With dead ends: 139432 [2024-12-02 11:30:39,858 INFO L226 Difference]: Without dead ends: 48038 [2024-12-02 11:30:39,893 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 11:30:39,894 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 61 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3196 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 11:30:39,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:39,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48038 states. [2024-12-02 11:30:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48038 to 48036. [2024-12-02 11:30:41,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48036 states, 48034 states have (on average 1.4234084190365157) internal successors, (68372), 48035 states have internal predecessors, (68372), 0 states have call successors, (0), 0 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 11:30:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48036 states to 48036 states and 68372 transitions. [2024-12-02 11:30:41,354 INFO L78 Accepts]: Start accepts. Automaton has 48036 states and 68372 transitions. Word has length 107 [2024-12-02 11:30:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:41,355 INFO L471 AbstractCegarLoop]: Abstraction has 48036 states and 68372 transitions. [2024-12-02 11:30:41,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 11:30:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 48036 states and 68372 transitions. [2024-12-02 11:30:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 11:30:41,357 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:41,357 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] [2024-12-02 11:30:41,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:30:41,357 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:41,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash 171046265, now seen corresponding path program 1 times [2024-12-02 11:30:41,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:41,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442274978] [2024-12-02 11:30:41,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:41,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:41,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:41,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442274978] [2024-12-02 11:30:41,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442274978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:41,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:41,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:41,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814823500] [2024-12-02 11:30:41,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:41,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:41,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:41,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:41,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:41,461 INFO L87 Difference]: Start difference. First operand 48036 states and 68372 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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 11:30:42,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:42,005 INFO L93 Difference]: Finished difference Result 70888 states and 100742 transitions. [2024-12-02 11:30:42,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:42,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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 109 [2024-12-02 11:30:42,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:42,026 INFO L225 Difference]: With dead ends: 70888 [2024-12-02 11:30:42,027 INFO L226 Difference]: Without dead ends: 25190 [2024-12-02 11:30:42,045 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 11:30:42,046 INFO L435 NwaCegarLoop]: 1627 mSDtfsCounter, 58 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3181 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 11:30:42,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3181 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:42,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25190 states. [2024-12-02 11:30:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25190 to 25188. [2024-12-02 11:30:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25188 states, 25186 states have (on average 1.4187246883189073) internal successors, (35732), 25187 states have internal predecessors, (35732), 0 states have call successors, (0), 0 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 11:30:42,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25188 states to 25188 states and 35732 transitions. [2024-12-02 11:30:42,659 INFO L78 Accepts]: Start accepts. Automaton has 25188 states and 35732 transitions. Word has length 109 [2024-12-02 11:30:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:42,659 INFO L471 AbstractCegarLoop]: Abstraction has 25188 states and 35732 transitions. [2024-12-02 11:30:42,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 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 11:30:42,659 INFO L276 IsEmpty]: Start isEmpty. Operand 25188 states and 35732 transitions. [2024-12-02 11:30:42,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 11:30:42,660 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:42,660 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] [2024-12-02 11:30:42,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:30:42,661 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:42,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:42,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2064578059, now seen corresponding path program 1 times [2024-12-02 11:30:42,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:42,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211437721] [2024-12-02 11:30:42,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:42,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211437721] [2024-12-02 11:30:42,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211437721] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:42,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:42,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883737398] [2024-12-02 11:30:42,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:42,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:42,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:42,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:42,860 INFO L87 Difference]: Start difference. First operand 25188 states and 35732 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 11:30:43,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:43,210 INFO L93 Difference]: Finished difference Result 36616 states and 51782 transitions. [2024-12-02 11:30:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:43,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 111 [2024-12-02 11:30:43,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:43,228 INFO L225 Difference]: With dead ends: 36616 [2024-12-02 11:30:43,229 INFO L226 Difference]: Without dead ends: 13766 [2024-12-02 11:30:43,242 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 11:30:43,242 INFO L435 NwaCegarLoop]: 1620 mSDtfsCounter, 55 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3166 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 11:30:43,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13766 states. [2024-12-02 11:30:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13766 to 13764. [2024-12-02 11:30:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13764 states, 13762 states have (on average 1.4204330765877053) internal successors, (19548), 13763 states have internal predecessors, (19548), 0 states have call successors, (0), 0 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 11:30:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13764 states to 13764 states and 19548 transitions. [2024-12-02 11:30:43,690 INFO L78 Accepts]: Start accepts. Automaton has 13764 states and 19548 transitions. Word has length 111 [2024-12-02 11:30:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:43,690 INFO L471 AbstractCegarLoop]: Abstraction has 13764 states and 19548 transitions. [2024-12-02 11:30:43,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 11:30:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 13764 states and 19548 transitions. [2024-12-02 11:30:43,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 11:30:43,693 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:43,693 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] [2024-12-02 11:30:43,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:30:43,694 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:43,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:43,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1057117469, now seen corresponding path program 1 times [2024-12-02 11:30:43,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:43,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273472093] [2024-12-02 11:30:43,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:43,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:43,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:43,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273472093] [2024-12-02 11:30:43,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273472093] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:43,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:43,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:43,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319931676] [2024-12-02 11:30:43,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:43,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:43,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:43,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:43,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:43,810 INFO L87 Difference]: Start difference. First operand 13764 states and 19548 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 11:30:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:43,984 INFO L93 Difference]: Finished difference Result 19480 states and 27506 transitions. [2024-12-02 11:30:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:43,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 113 [2024-12-02 11:30:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:43,992 INFO L225 Difference]: With dead ends: 19480 [2024-12-02 11:30:43,992 INFO L226 Difference]: Without dead ends: 8054 [2024-12-02 11:30:43,996 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 11:30:43,997 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 52 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3151 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 11:30:43,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3151 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8054 states. [2024-12-02 11:30:44,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8054 to 8052. [2024-12-02 11:30:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8052 states, 8050 states have (on average 1.4315527950310558) internal successors, (11524), 8051 states have internal predecessors, (11524), 0 states have call successors, (0), 0 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 11:30:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8052 states to 8052 states and 11524 transitions. [2024-12-02 11:30:44,166 INFO L78 Accepts]: Start accepts. Automaton has 8052 states and 11524 transitions. Word has length 113 [2024-12-02 11:30:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:44,167 INFO L471 AbstractCegarLoop]: Abstraction has 8052 states and 11524 transitions. [2024-12-02 11:30:44,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 11:30:44,167 INFO L276 IsEmpty]: Start isEmpty. Operand 8052 states and 11524 transitions. [2024-12-02 11:30:44,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 11:30:44,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:44,168 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] [2024-12-02 11:30:44,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:30:44,168 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:44,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:44,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1472279215, now seen corresponding path program 1 times [2024-12-02 11:30:44,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:44,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326822299] [2024-12-02 11:30:44,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:44,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:44,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326822299] [2024-12-02 11:30:44,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326822299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:44,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:44,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:44,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635859773] [2024-12-02 11:30:44,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:44,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:44,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:44,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:44,232 INFO L87 Difference]: Start difference. First operand 8052 states and 11524 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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 11:30:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:44,314 INFO L93 Difference]: Finished difference Result 10912 states and 15470 transitions. [2024-12-02 11:30:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:44,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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 115 [2024-12-02 11:30:44,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:44,320 INFO L225 Difference]: With dead ends: 10912 [2024-12-02 11:30:44,320 INFO L226 Difference]: Without dead ends: 5198 [2024-12-02 11:30:44,322 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 11:30:44,323 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 49 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3136 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 11:30:44,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3136 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2024-12-02 11:30:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 5196. [2024-12-02 11:30:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 5194 states have (on average 1.4528301886792452) internal successors, (7546), 5195 states have internal predecessors, (7546), 0 states have call successors, (0), 0 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 11:30:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7546 transitions. [2024-12-02 11:30:44,415 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7546 transitions. Word has length 115 [2024-12-02 11:30:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:44,415 INFO L471 AbstractCegarLoop]: Abstraction has 5196 states and 7546 transitions. [2024-12-02 11:30:44,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 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 11:30:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7546 transitions. [2024-12-02 11:30:44,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 11:30:44,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:44,416 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] [2024-12-02 11:30:44,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:30:44,416 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:44,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:44,416 INFO L85 PathProgramCache]: Analyzing trace with hash 65580737, now seen corresponding path program 1 times [2024-12-02 11:30:44,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:44,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134550556] [2024-12-02 11:30:44,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:44,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134550556] [2024-12-02 11:30:44,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134550556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:30:44,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:30:44,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:30:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924182816] [2024-12-02 11:30:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:30:44,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:30:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:44,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:30:44,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:30:44,478 INFO L87 Difference]: Start difference. First operand 5196 states and 7546 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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 11:30:44,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:44,552 INFO L93 Difference]: Finished difference Result 6628 states and 9503 transitions. [2024-12-02 11:30:44,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:30:44,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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 117 [2024-12-02 11:30:44,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:44,558 INFO L225 Difference]: With dead ends: 6628 [2024-12-02 11:30:44,558 INFO L226 Difference]: Without dead ends: 3770 [2024-12-02 11:30:44,559 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 11:30:44,560 INFO L435 NwaCegarLoop]: 1599 mSDtfsCounter, 46 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3121 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 11:30:44,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3121 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:30:44,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2024-12-02 11:30:44,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3768. [2024-12-02 11:30:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3766 states have (on average 1.4800849707912904) internal successors, (5574), 3767 states have internal predecessors, (5574), 0 states have call successors, (0), 0 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 11:30:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5574 transitions. [2024-12-02 11:30:44,620 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5574 transitions. Word has length 117 [2024-12-02 11:30:44,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:44,621 INFO L471 AbstractCegarLoop]: Abstraction has 3768 states and 5574 transitions. [2024-12-02 11:30:44,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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 11:30:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5574 transitions. [2024-12-02 11:30:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 11:30:44,621 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:44,622 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:30:44,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:30:44,622 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:44,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:44,622 INFO L85 PathProgramCache]: Analyzing trace with hash -788666029, now seen corresponding path program 1 times [2024-12-02 11:30:44,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:44,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011740573] [2024-12-02 11:30:44,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:45,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:45,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011740573] [2024-12-02 11:30:45,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011740573] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:30:45,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360259058] [2024-12-02 11:30:45,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:45,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:30:45,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:30:45,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:30:45,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:30:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:45,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:30:45,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:30:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:46,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:30:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:47,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360259058] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:30:47,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:30:47,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 11:30:47,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12865615] [2024-12-02 11:30:47,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:30:47,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 11:30:47,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:47,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 11:30:47,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:30:47,828 INFO L87 Difference]: Start difference. First operand 3768 states and 5574 transitions. Second operand has 28 states, 28 states have (on average 11.392857142857142) internal successors, (319), 27 states have internal predecessors, (319), 0 states have call successors, (0), 0 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 11:30:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:51,088 INFO L93 Difference]: Finished difference Result 10956 states and 15424 transitions. [2024-12-02 11:30:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-12-02 11:30:51,089 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 11.392857142857142) internal successors, (319), 27 states have internal predecessors, (319), 0 states have call successors, (0), 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 119 [2024-12-02 11:30:51,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:51,098 INFO L225 Difference]: With dead ends: 10956 [2024-12-02 11:30:51,098 INFO L226 Difference]: Without dead ends: 9526 [2024-12-02 11:30:51,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1290 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1044, Invalid=4358, Unknown=0, NotChecked=0, Total=5402 [2024-12-02 11:30:51,101 INFO L435 NwaCegarLoop]: 1522 mSDtfsCounter, 27537 mSDsluCounter, 6661 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27537 SdHoareTripleChecker+Valid, 8183 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:51,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27537 Valid, 8183 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:30:51,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2024-12-02 11:30:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 9344. [2024-12-02 11:30:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9344 states, 9342 states have (on average 1.3955255833868552) internal successors, (13037), 9343 states have internal predecessors, (13037), 0 states have call successors, (0), 0 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 11:30:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9344 states to 9344 states and 13037 transitions. [2024-12-02 11:30:51,341 INFO L78 Accepts]: Start accepts. Automaton has 9344 states and 13037 transitions. Word has length 119 [2024-12-02 11:30:51,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:51,342 INFO L471 AbstractCegarLoop]: Abstraction has 9344 states and 13037 transitions. [2024-12-02 11:30:51,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.392857142857142) internal successors, (319), 27 states have internal predecessors, (319), 0 states have call successors, (0), 0 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 11:30:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9344 states and 13037 transitions. [2024-12-02 11:30:51,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 11:30:51,343 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:51,343 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:51,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:30:51,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 11:30:51,543 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:51,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:51,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1153358990, now seen corresponding path program 1 times [2024-12-02 11:30:51,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:51,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346872224] [2024-12-02 11:30:51,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:51,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:52,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:52,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346872224] [2024-12-02 11:30:52,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346872224] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:30:52,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444946502] [2024-12-02 11:30:52,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:52,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:30:52,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:30:52,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:30:52,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:30:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:52,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 11:30:52,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:30:54,115 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:54,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:30:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:30:58,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444946502] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:30:58,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:30:58,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 16] total 41 [2024-12-02 11:30:58,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42134040] [2024-12-02 11:30:58,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:30:58,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-12-02 11:30:58,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:58,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-12-02 11:30:58,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 11:30:58,269 INFO L87 Difference]: Start difference. First operand 9344 states and 13037 transitions. Second operand has 41 states, 41 states have (on average 7.414634146341464) internal successors, (304), 41 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 11:31:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:31:14,477 INFO L93 Difference]: Finished difference Result 88774 states and 119759 transitions. [2024-12-02 11:31:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2024-12-02 11:31:14,478 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 7.414634146341464) internal successors, (304), 41 states have internal predecessors, (304), 0 states have call successors, (0), 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 120 [2024-12-02 11:31:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:31:14,533 INFO L225 Difference]: With dead ends: 88774 [2024-12-02 11:31:14,533 INFO L226 Difference]: Without dead ends: 81768 [2024-12-02 11:31:14,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8343 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=3774, Invalid=20096, Unknown=0, NotChecked=0, Total=23870 [2024-12-02 11:31:14,552 INFO L435 NwaCegarLoop]: 1561 mSDtfsCounter, 26271 mSDsluCounter, 15344 mSDsCounter, 0 mSdLazyCounter, 2768 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26271 SdHoareTripleChecker+Valid, 16905 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:31:14,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26271 Valid, 16905 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2768 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 11:31:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81768 states. [2024-12-02 11:31:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81768 to 44044. [2024-12-02 11:31:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44044 states, 44042 states have (on average 1.3364061577585034) internal successors, (58858), 44043 states have internal predecessors, (58858), 0 states have call successors, (0), 0 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 11:31:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44044 states to 44044 states and 58858 transitions. [2024-12-02 11:31:16,039 INFO L78 Accepts]: Start accepts. Automaton has 44044 states and 58858 transitions. Word has length 120 [2024-12-02 11:31:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:31:16,040 INFO L471 AbstractCegarLoop]: Abstraction has 44044 states and 58858 transitions. [2024-12-02 11:31:16,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.414634146341464) internal successors, (304), 41 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 11:31:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand 44044 states and 58858 transitions. [2024-12-02 11:31:16,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:31:16,042 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:31:16,043 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:16,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:31:16,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:16,243 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:31:16,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:31:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2061805195, now seen corresponding path program 1 times [2024-12-02 11:31:16,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:31:16,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986389508] [2024-12-02 11:31:16,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:16,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:31:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:16,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:31:16,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986389508] [2024-12-02 11:31:16,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986389508] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:31:16,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086288636] [2024-12-02 11:31:16,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:16,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:16,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:31:16,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:31:16,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:31:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:16,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:31:16,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:31:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:17,211 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:31:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:18,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086288636] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:31:18,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:31:18,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 11:31:18,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826224548] [2024-12-02 11:31:18,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:31:18,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:31:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:31:18,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:31:18,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:31:18,247 INFO L87 Difference]: Start difference. First operand 44044 states and 58858 transitions. Second operand has 25 states, 25 states have (on average 13.88) internal successors, (347), 24 states have internal predecessors, (347), 0 states have call successors, (0), 0 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 11:31:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:31:24,392 INFO L93 Difference]: Finished difference Result 220282 states and 292689 transitions. [2024-12-02 11:31:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 11:31:24,393 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 13.88) internal successors, (347), 24 states have internal predecessors, (347), 0 states have call successors, (0), 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 11:31:24,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:31:24,539 INFO L225 Difference]: With dead ends: 220282 [2024-12-02 11:31:24,539 INFO L226 Difference]: Without dead ends: 178576 [2024-12-02 11:31:24,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=667, Invalid=2413, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 11:31:24,571 INFO L435 NwaCegarLoop]: 1547 mSDtfsCounter, 19436 mSDsluCounter, 6929 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19436 SdHoareTripleChecker+Valid, 8476 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:31:24,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19436 Valid, 8476 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:31:24,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178576 states. [2024-12-02 11:31:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178576 to 176996. [2024-12-02 11:31:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176996 states, 176994 states have (on average 1.3017616416375697) internal successors, (230404), 176995 states have internal predecessors, (230404), 0 states have call successors, (0), 0 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 11:31:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176996 states to 176996 states and 230404 transitions. [2024-12-02 11:31:30,052 INFO L78 Accepts]: Start accepts. Automaton has 176996 states and 230404 transitions. Word has length 121 [2024-12-02 11:31:30,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:31:30,052 INFO L471 AbstractCegarLoop]: Abstraction has 176996 states and 230404 transitions. [2024-12-02 11:31:30,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.88) internal successors, (347), 24 states have internal predecessors, (347), 0 states have call successors, (0), 0 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 11:31:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 176996 states and 230404 transitions. [2024-12-02 11:31:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:31:30,059 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:31:30,060 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:30,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:31:30,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:30,260 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:31:30,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:31:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1611640709, now seen corresponding path program 1 times [2024-12-02 11:31:30,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:31:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977238365] [2024-12-02 11:31:30,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:31:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:30,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:31:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977238365] [2024-12-02 11:31:30,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977238365] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:31:30,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663266107] [2024-12-02 11:31:30,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:31:30,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:31:30,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:31:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:30,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:31:30,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:31:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:31,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:31:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:32,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663266107] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:31:32,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:31:32,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2024-12-02 11:31:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096953214] [2024-12-02 11:31:32,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:31:32,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:31:32,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:31:32,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:31:32,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:31:32,585 INFO L87 Difference]: Start difference. First operand 176996 states and 230404 transitions. Second operand has 25 states, 25 states have (on average 11.52) internal successors, (288), 24 states have internal predecessors, (288), 0 states have call successors, (0), 0 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 11:31:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:31:39,150 INFO L93 Difference]: Finished difference Result 356362 states and 464231 transitions. [2024-12-02 11:31:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:31:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.52) internal successors, (288), 24 states have internal predecessors, (288), 0 states have call successors, (0), 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 11:31:39,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:31:39,311 INFO L225 Difference]: With dead ends: 356362 [2024-12-02 11:31:39,311 INFO L226 Difference]: Without dead ends: 181704 [2024-12-02 11:31:39,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=317, Invalid=943, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 11:31:39,369 INFO L435 NwaCegarLoop]: 1550 mSDtfsCounter, 7774 mSDsluCounter, 5068 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7774 SdHoareTripleChecker+Valid, 6618 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:31:39,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7774 Valid, 6618 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:31:39,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181704 states. [2024-12-02 11:31:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181704 to 150820. [2024-12-02 11:31:45,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150820 states, 150818 states have (on average 1.2933469479770319) internal successors, (195060), 150819 states have internal predecessors, (195060), 0 states have call successors, (0), 0 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 11:31:45,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150820 states to 150820 states and 195060 transitions. [2024-12-02 11:31:45,459 INFO L78 Accepts]: Start accepts. Automaton has 150820 states and 195060 transitions. Word has length 123 [2024-12-02 11:31:45,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:31:45,459 INFO L471 AbstractCegarLoop]: Abstraction has 150820 states and 195060 transitions. [2024-12-02 11:31:45,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.52) internal successors, (288), 24 states have internal predecessors, (288), 0 states have call successors, (0), 0 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 11:31:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 150820 states and 195060 transitions. [2024-12-02 11:31:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:31:45,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:31:45,467 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:31:45,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:31:45,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:45,667 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:31:45,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:31:45,668 INFO L85 PathProgramCache]: Analyzing trace with hash 223399745, now seen corresponding path program 1 times [2024-12-02 11:31:45,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:31:45,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033504379] [2024-12-02 11:31:45,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:45,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:31:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:46,010 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:46,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:31:46,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033504379] [2024-12-02 11:31:46,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033504379] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:31:46,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463019906] [2024-12-02 11:31:46,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:46,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:46,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:31:46,012 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:31:46,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:31:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:46,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 11:31:46,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:31:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:47,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:31:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:31:48,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463019906] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:31:48,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:31:48,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 12] total 28 [2024-12-02 11:31:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532482822] [2024-12-02 11:31:48,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:31:48,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 11:31:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:31:48,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 11:31:48,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:31:48,889 INFO L87 Difference]: Start difference. First operand 150820 states and 195060 transitions. Second operand has 28 states, 28 states have (on average 11.5) internal successors, (322), 28 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 11:31:59,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:31:59,112 INFO L93 Difference]: Finished difference Result 401836 states and 519480 transitions. [2024-12-02 11:31:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:31:59,112 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 11.5) internal successors, (322), 28 states have internal predecessors, (322), 0 states have call successors, (0), 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 11:31:59,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:31:59,329 INFO L225 Difference]: With dead ends: 401836 [2024-12-02 11:31:59,329 INFO L226 Difference]: Without dead ends: 253354 [2024-12-02 11:31:59,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=351, Invalid=1455, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 11:31:59,379 INFO L435 NwaCegarLoop]: 1554 mSDtfsCounter, 12882 mSDsluCounter, 6667 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12882 SdHoareTripleChecker+Valid, 8221 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:31:59,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12882 Valid, 8221 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:31:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253354 states. [2024-12-02 11:32:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253354 to 253348. [2024-12-02 11:32:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253348 states, 253346 states have (on average 1.288688197169089) internal successors, (326484), 253347 states have internal predecessors, (326484), 0 states have call successors, (0), 0 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 11:32:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253348 states to 253348 states and 326484 transitions. [2024-12-02 11:32:09,978 INFO L78 Accepts]: Start accepts. Automaton has 253348 states and 326484 transitions. Word has length 123 [2024-12-02 11:32:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:32:09,978 INFO L471 AbstractCegarLoop]: Abstraction has 253348 states and 326484 transitions. [2024-12-02 11:32:09,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.5) internal successors, (322), 28 states have internal predecessors, (322), 0 states have call successors, (0), 0 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 11:32:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 253348 states and 326484 transitions. [2024-12-02 11:32:09,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 11:32:09,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:32:09,986 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:09,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 11:32:10,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:32:10,187 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:32:10,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:32:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1799456762, now seen corresponding path program 1 times [2024-12-02 11:32:10,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:32:10,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634804654] [2024-12-02 11:32:10,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:32:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:32:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:32:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:32:10,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:32:10,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634804654] [2024-12-02 11:32:10,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634804654] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:32:10,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610655055] [2024-12-02 11:32:10,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:32:10,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:32:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:32:10,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:32:10,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:32:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:32:10,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:32:10,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:32:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:32:11,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:32:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:32:11,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610655055] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:32:11,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:32:11,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 11:32:11,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969680151] [2024-12-02 11:32:11,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:32:11,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 11:32:11,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:32:11,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 11:32:11,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:32:11,842 INFO L87 Difference]: Start difference. First operand 253348 states and 326484 transitions. Second operand has 21 states, 21 states have (on average 13.095238095238095) internal successors, (275), 20 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 11:32:24,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:32:24,883 INFO L93 Difference]: Finished difference Result 512330 states and 661287 transitions. [2024-12-02 11:32:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:32:24,884 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.095238095238095) internal successors, (275), 20 states have internal predecessors, (275), 0 states have call successors, (0), 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 11:32:24,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:32:25,159 INFO L225 Difference]: With dead ends: 512330 [2024-12-02 11:32:25,159 INFO L226 Difference]: Without dead ends: 261320 [2024-12-02 11:32:25,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-12-02 11:32:25,241 INFO L435 NwaCegarLoop]: 1566 mSDtfsCounter, 7906 mSDsluCounter, 5102 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 6668 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:32:25,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 6668 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:32:25,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261320 states. [2024-12-02 11:32:36,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261320 to 254308. [2024-12-02 11:32:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254308 states, 254306 states have (on average 1.2823763497518736) internal successors, (326116), 254307 states have internal predecessors, (326116), 0 states have call successors, (0), 0 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 11:32:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254308 states to 254308 states and 326116 transitions. [2024-12-02 11:32:36,878 INFO L78 Accepts]: Start accepts. Automaton has 254308 states and 326116 transitions. Word has length 124 [2024-12-02 11:32:36,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:32:36,878 INFO L471 AbstractCegarLoop]: Abstraction has 254308 states and 326116 transitions. [2024-12-02 11:32:36,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.095238095238095) internal successors, (275), 20 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 11:32:36,878 INFO L276 IsEmpty]: Start isEmpty. Operand 254308 states and 326116 transitions. [2024-12-02 11:32:36,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:32:36,887 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:32:36,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:36,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 11:32:37,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 11:32:37,088 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:32:37,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:32:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1721841515, now seen corresponding path program 1 times [2024-12-02 11:32:37,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:32:37,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546991434] [2024-12-02 11:32:37,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:32:37,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:32:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:32:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:32:38,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:32:38,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546991434] [2024-12-02 11:32:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546991434] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:32:38,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688547031] [2024-12-02 11:32:38,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:32:38,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:32:38,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:32:38,344 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:32:38,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:32:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:32:38,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:32:38,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:32:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:32:39,319 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:32:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:32:40,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688547031] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:32:40,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:32:40,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 34 [2024-12-02 11:32:40,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158207005] [2024-12-02 11:32:40,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:32:40,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 11:32:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:32:40,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 11:32:40,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1011, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 11:32:40,412 INFO L87 Difference]: Start difference. First operand 254308 states and 326116 transitions. Second operand has 34 states, 34 states have (on average 9.794117647058824) internal successors, (333), 34 states have internal predecessors, (333), 0 states have call successors, (0), 0 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 11:33:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:33:22,619 INFO L93 Difference]: Finished difference Result 900542 states and 1149409 transitions. [2024-12-02 11:33:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-12-02 11:33:22,620 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.794117647058824) internal successors, (333), 34 states have internal predecessors, (333), 0 states have call successors, (0), 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 125 [2024-12-02 11:33:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:33:23,928 INFO L225 Difference]: With dead ends: 900542 [2024-12-02 11:33:23,929 INFO L226 Difference]: Without dead ends: 743100 [2024-12-02 11:33:24,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8418 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=3910, Invalid=18740, Unknown=0, NotChecked=0, Total=22650 [2024-12-02 11:33:24,369 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 20869 mSDsluCounter, 23649 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20869 SdHoareTripleChecker+Valid, 25208 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:33:24,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20869 Valid, 25208 Invalid, 2574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 11:33:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743100 states. [2024-12-02 11:33:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743100 to 232068. [2024-12-02 11:33:40,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232068 states, 232066 states have (on average 1.2752406642937786) internal successors, (295940), 232067 states have internal predecessors, (295940), 0 states have call successors, (0), 0 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 11:33:40,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232068 states to 232068 states and 295940 transitions. [2024-12-02 11:33:40,579 INFO L78 Accepts]: Start accepts. Automaton has 232068 states and 295940 transitions. Word has length 125 [2024-12-02 11:33:40,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:33:40,580 INFO L471 AbstractCegarLoop]: Abstraction has 232068 states and 295940 transitions. [2024-12-02 11:33:40,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.794117647058824) internal successors, (333), 34 states have internal predecessors, (333), 0 states have call successors, (0), 0 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 11:33:40,581 INFO L276 IsEmpty]: Start isEmpty. Operand 232068 states and 295940 transitions. [2024-12-02 11:33:40,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:33:40,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:33:40,835 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:40,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 11:33:41,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:33:41,037 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:33:41,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:41,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1102911411, now seen corresponding path program 1 times [2024-12-02 11:33:41,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:41,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390217399] [2024-12-02 11:33:41,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:41,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:43,369 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:33:43,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:43,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390217399] [2024-12-02 11:33:43,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390217399] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:33:43,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058991952] [2024-12-02 11:33:43,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:43,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:33:43,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:33:43,374 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:33:43,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 11:33:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:43,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 11:33:43,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:33:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:33:48,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:33:52,818 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:33:52,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058991952] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:33:52,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:33:52,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18, 17] total 42 [2024-12-02 11:33:52,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795642258] [2024-12-02 11:33:52,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:33:52,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 11:33:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:52,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 11:33:52,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1486, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 11:33:52,822 INFO L87 Difference]: Start difference. First operand 232068 states and 295940 transitions. Second operand has 42 states, 42 states have (on average 8.166666666666666) internal successors, (343), 42 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:34:20,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:20,923 INFO L93 Difference]: Finished difference Result 419552 states and 535618 transitions. [2024-12-02 11:34:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-12-02 11:34:20,924 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 8.166666666666666) internal successors, (343), 42 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-12-02 11:34:20,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:21,232 INFO L225 Difference]: With dead ends: 419552 [2024-12-02 11:34:21,232 INFO L226 Difference]: Without dead ends: 325918 [2024-12-02 11:34:21,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2887 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2189, Invalid=8317, Unknown=0, NotChecked=0, Total=10506 [2024-12-02 11:34:21,279 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 13439 mSDsluCounter, 23953 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13439 SdHoareTripleChecker+Valid, 25508 SdHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:21,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13439 Valid, 25508 Invalid, 3101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 11:34:21,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325918 states. [2024-12-02 11:34:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325918 to 270140. [2024-12-02 11:34:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270140 states, 270138 states have (on average 1.2767104220805663) internal successors, (344888), 270139 states have internal predecessors, (344888), 0 states have call successors, (0), 0 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 11:34:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270140 states to 270140 states and 344888 transitions. [2024-12-02 11:34:38,498 INFO L78 Accepts]: Start accepts. Automaton has 270140 states and 344888 transitions. Word has length 125 [2024-12-02 11:34:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:38,498 INFO L471 AbstractCegarLoop]: Abstraction has 270140 states and 344888 transitions. [2024-12-02 11:34:38,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 8.166666666666666) internal successors, (343), 42 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:34:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 270140 states and 344888 transitions. [2024-12-02 11:34:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:34:38,503 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:38,503 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:38,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 11:34:38,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:34:38,704 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:38,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1586768563, now seen corresponding path program 1 times [2024-12-02 11:34:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616272073] [2024-12-02 11:34:38,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:39,909 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:34:39,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:39,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616272073] [2024-12-02 11:34:39,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616272073] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:34:39,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213108989] [2024-12-02 11:34:39,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:39,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:34:39,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:34:39,913 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:34:39,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 11:34:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:40,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 11:34:40,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:34:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:34:43,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:34:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:34:46,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213108989] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:34:46,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:34:46,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 15] total 42 [2024-12-02 11:34:46,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046049112] [2024-12-02 11:34:46,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:34:46,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 11:34:46,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:46,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 11:34:46,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1566, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 11:34:46,235 INFO L87 Difference]: Start difference. First operand 270140 states and 344888 transitions. Second operand has 42 states, 42 states have (on average 7.690476190476191) internal successors, (323), 42 states have internal predecessors, (323), 0 states have call successors, (0), 0 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 11:35:53,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:53,146 INFO L93 Difference]: Finished difference Result 739292 states and 947030 transitions. [2024-12-02 11:35:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2024-12-02 11:35:53,147 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.690476190476191) internal successors, (323), 42 states have internal predecessors, (323), 0 states have call successors, (0), 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 125 [2024-12-02 11:35:53,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:53,906 INFO L225 Difference]: With dead ends: 739292 [2024-12-02 11:35:53,906 INFO L226 Difference]: Without dead ends: 640210 [2024-12-02 11:35:54,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18779 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=7203, Invalid=42303, Unknown=0, NotChecked=0, Total=49506 [2024-12-02 11:35:54,006 INFO L435 NwaCegarLoop]: 1749 mSDtfsCounter, 21016 mSDsluCounter, 27601 mSDsCounter, 0 mSdLazyCounter, 7417 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21016 SdHoareTripleChecker+Valid, 29350 SdHoareTripleChecker+Invalid, 7518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 7417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:54,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21016 Valid, 29350 Invalid, 7518 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 7417 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 11:35:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640210 states. [2024-12-02 11:36:13,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640210 to 285516. [2024-12-02 11:36:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285516 states, 285514 states have (on average 1.2781229641979028) internal successors, (364922), 285515 states have internal predecessors, (364922), 0 states have call successors, (0), 0 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 11:36:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285516 states to 285516 states and 364922 transitions. [2024-12-02 11:36:14,922 INFO L78 Accepts]: Start accepts. Automaton has 285516 states and 364922 transitions. Word has length 125 [2024-12-02 11:36:14,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:36:14,923 INFO L471 AbstractCegarLoop]: Abstraction has 285516 states and 364922 transitions. [2024-12-02 11:36:14,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.690476190476191) internal successors, (323), 42 states have internal predecessors, (323), 0 states have call successors, (0), 0 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 11:36:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand 285516 states and 364922 transitions. [2024-12-02 11:36:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 11:36:14,927 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:36:14,928 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:36:14,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 11:36:15,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 11:36:15,129 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:36:15,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:36:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash -105348644, now seen corresponding path program 1 times [2024-12-02 11:36:15,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:36:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349536930] [2024-12-02 11:36:15,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:36:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:36:22,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:36:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349536930] [2024-12-02 11:36:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349536930] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:36:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982134653] [2024-12-02 11:36:22,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:36:22,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:36:22,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:36:22,076 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:36:22,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8376015-cbc0-4e5a-8860-0d256f432e60/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 11:36:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:36:22,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:36:22,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:36:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:36:22,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:36:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:36:23,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982134653] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:36:23,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:36:23,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 7, 6] total 48 [2024-12-02 11:36:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690122516] [2024-12-02 11:36:23,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:36:23,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-12-02 11:36:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:36:23,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-12-02 11:36:23,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 11:36:23,431 INFO L87 Difference]: Start difference. First operand 285516 states and 364922 transitions. Second operand has 48 states, 48 states have (on average 7.604166666666667) internal successors, (365), 48 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)