./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.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_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/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_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/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_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/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 075767edbb592d061c1d85f41edb41733b674c2f33a2c1741ae50b9eba126551 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:15:41,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:15:41,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:15:41,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:15:41,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:15:41,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:15:41,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:15:41,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:15:41,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:15:41,642 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:15:41,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:15:41,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:15:41,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:15:41,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:15:41,643 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:15:41,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:15:41,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:15:41,645 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:15:41,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:15:41,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:15:41,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:15:41,646 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:15:41,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:15:41,647 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_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/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 -> 075767edbb592d061c1d85f41edb41733b674c2f33a2c1741ae50b9eba126551 [2024-12-02 08:15:41,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:15:41,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:15:41,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:15:41,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:15:41,904 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:15:41,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 08:15:45,076 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/data/b5acc1347/e585801c63204c4a8be5301b3437eb62/FLAGb1788d531 [2024-12-02 08:15:45,364 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:15:45,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 08:15:45,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/data/b5acc1347/e585801c63204c4a8be5301b3437eb62/FLAGb1788d531 [2024-12-02 08:15:45,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/data/b5acc1347/e585801c63204c4a8be5301b3437eb62 [2024-12-02 08:15:45,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:15:45,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:15:45,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:15:45,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:15:45,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:15:45,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7430e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45, skipping insertion in model container [2024-12-02 08:15:45,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:15:45,634 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_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6780,6793] [2024-12-02 08:15:45,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:15:45,687 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:15:45,738 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_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[6780,6793] [2024-12-02 08:15:45,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:15:45,786 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:15:45,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45 WrapperNode [2024-12-02 08:15:45,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:15:45,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:15:45,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:15:45,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:15:45,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,840 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 576 [2024-12-02 08:15:45,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:15:45,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:15:45,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:15:45,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:15:45,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,874 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:15:45,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,883 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:15:45,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:15:45,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:15:45,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:15:45,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (1/1) ... [2024-12-02 08:15:45,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:15:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:15:45,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:15:45,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:15:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:15:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:15:45,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:15:45,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:15:46,096 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:15:46,099 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:15:46,649 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-12-02 08:15:46,650 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:15:46,663 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:15:46,663 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 08:15:46,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:15:46 BoogieIcfgContainer [2024-12-02 08:15:46,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:15:46,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:15:46,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:15:46,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:15:46,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:15:45" (1/3) ... [2024-12-02 08:15:46,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5b498e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:15:46, skipping insertion in model container [2024-12-02 08:15:46,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:15:45" (2/3) ... [2024-12-02 08:15:46,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5b498e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:15:46, skipping insertion in model container [2024-12-02 08:15:46,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:15:46" (3/3) ... [2024-12-02 08:15:46,673 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-12-02 08:15:46,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:15:46,689 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c that has 1 procedures, 123 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-12-02 08:15:46,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:15:46,758 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;@525d4e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:15:46,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:15:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 122 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:46,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 08:15:46,769 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:46,769 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] [2024-12-02 08:15:46,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:46,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:46,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1296157629, now seen corresponding path program 1 times [2024-12-02 08:15:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:46,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680684104] [2024-12-02 08:15:46,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:46,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:47,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:47,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:47,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680684104] [2024-12-02 08:15:47,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680684104] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:47,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:47,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473724579] [2024-12-02 08:15:47,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:47,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:47,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:47,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:47,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:47,370 INFO L87 Difference]: Start difference. First operand has 123 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 122 states have internal predecessors, (212), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:47,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:47,727 INFO L93 Difference]: Finished difference Result 589 states and 942 transitions. [2024-12-02 08:15:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:15:47,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-12-02 08:15:47,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:47,742 INFO L225 Difference]: With dead ends: 589 [2024-12-02 08:15:47,743 INFO L226 Difference]: Without dead ends: 511 [2024-12-02 08:15:47,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:15:47,750 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 910 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:47,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1605 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:15:47,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-12-02 08:15:47,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 185. [2024-12-02 08:15:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.451086956521739) internal successors, (267), 184 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 267 transitions. [2024-12-02 08:15:47,808 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 267 transitions. Word has length 62 [2024-12-02 08:15:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:47,809 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 267 transitions. [2024-12-02 08:15:47,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 267 transitions. [2024-12-02 08:15:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 08:15:47,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:47,811 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] [2024-12-02 08:15:47,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:15:47,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:47,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash -574954446, now seen corresponding path program 1 times [2024-12-02 08:15:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:47,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761155360] [2024-12-02 08:15:47,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:47,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:48,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:48,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761155360] [2024-12-02 08:15:48,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761155360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:48,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:48,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781463197] [2024-12-02 08:15:48,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:48,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:48,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:48,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:48,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:48,076 INFO L87 Difference]: Start difference. First operand 185 states and 267 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:48,231 INFO L93 Difference]: Finished difference Result 654 states and 1000 transitions. [2024-12-02 08:15:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:15:48,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 08:15:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:48,235 INFO L225 Difference]: With dead ends: 654 [2024-12-02 08:15:48,235 INFO L226 Difference]: Without dead ends: 554 [2024-12-02 08:15:48,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:15:48,236 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 521 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:48,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 889 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:48,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-12-02 08:15:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 294. [2024-12-02 08:15:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.4982935153583619) internal successors, (439), 293 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:48,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 439 transitions. [2024-12-02 08:15:48,260 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 439 transitions. Word has length 64 [2024-12-02 08:15:48,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:48,260 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 439 transitions. [2024-12-02 08:15:48,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:48,261 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 439 transitions. [2024-12-02 08:15:48,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 08:15:48,262 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:48,263 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] [2024-12-02 08:15:48,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:15:48,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:48,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:48,264 INFO L85 PathProgramCache]: Analyzing trace with hash -254559290, now seen corresponding path program 1 times [2024-12-02 08:15:48,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:48,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297920690] [2024-12-02 08:15:48,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:48,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:48,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:48,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297920690] [2024-12-02 08:15:48,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297920690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:48,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:48,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179622672] [2024-12-02 08:15:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:48,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:48,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:48,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:48,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:48,547 INFO L87 Difference]: Start difference. First operand 294 states and 439 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:48,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:48,704 INFO L93 Difference]: Finished difference Result 763 states and 1172 transitions. [2024-12-02 08:15:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:15:48,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 08:15:48,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:48,709 INFO L225 Difference]: With dead ends: 763 [2024-12-02 08:15:48,709 INFO L226 Difference]: Without dead ends: 663 [2024-12-02 08:15:48,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:15:48,711 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 599 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:48,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 792 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-12-02 08:15:48,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 447. [2024-12-02 08:15:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.5246636771300448) internal successors, (680), 446 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 680 transitions. [2024-12-02 08:15:48,738 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 680 transitions. Word has length 64 [2024-12-02 08:15:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:48,739 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 680 transitions. [2024-12-02 08:15:48,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 680 transitions. [2024-12-02 08:15:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 08:15:48,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:48,741 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] [2024-12-02 08:15:48,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:15:48,741 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:48,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1989488918, now seen corresponding path program 1 times [2024-12-02 08:15:48,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:48,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490196807] [2024-12-02 08:15:48,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:48,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:48,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:48,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490196807] [2024-12-02 08:15:48,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490196807] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:48,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:48,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:48,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144399619] [2024-12-02 08:15:48,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:48,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:48,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:48,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:48,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:48,991 INFO L87 Difference]: Start difference. First operand 447 states and 680 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:49,160 INFO L93 Difference]: Finished difference Result 862 states and 1328 transitions. [2024-12-02 08:15:49,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:15:49,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 08:15:49,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:49,164 INFO L225 Difference]: With dead ends: 862 [2024-12-02 08:15:49,164 INFO L226 Difference]: Without dead ends: 762 [2024-12-02 08:15:49,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:15:49,165 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 674 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:49,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 788 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-12-02 08:15:49,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 546. [2024-12-02 08:15:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 545 states have (on average 1.5339449541284405) internal successors, (836), 545 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 836 transitions. [2024-12-02 08:15:49,189 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 836 transitions. Word has length 64 [2024-12-02 08:15:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:49,189 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 836 transitions. [2024-12-02 08:15:49,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 836 transitions. [2024-12-02 08:15:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 08:15:49,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:49,191 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] [2024-12-02 08:15:49,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:15:49,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:49,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1188595012, now seen corresponding path program 1 times [2024-12-02 08:15:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:49,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874730889] [2024-12-02 08:15:49,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:49,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:49,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874730889] [2024-12-02 08:15:49,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874730889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:49,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:49,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:15:49,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451080475] [2024-12-02 08:15:49,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:49,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:15:49,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:49,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:15:49,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:49,273 INFO L87 Difference]: Start difference. First operand 546 states and 836 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:49,308 INFO L93 Difference]: Finished difference Result 1374 states and 2132 transitions. [2024-12-02 08:15:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:15:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 08:15:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:49,313 INFO L225 Difference]: With dead ends: 1374 [2024-12-02 08:15:49,313 INFO L226 Difference]: Without dead ends: 931 [2024-12-02 08:15:49,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:15:49,315 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 67 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:49,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 380 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:15:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-12-02 08:15:49,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-12-02 08:15:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.5237068965517242) internal successors, (1414), 928 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1414 transitions. [2024-12-02 08:15:49,349 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1414 transitions. Word has length 64 [2024-12-02 08:15:49,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:49,349 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1414 transitions. [2024-12-02 08:15:49,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1414 transitions. [2024-12-02 08:15:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 08:15:49,350 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:49,351 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] [2024-12-02 08:15:49,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:15:49,351 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:49,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:49,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1017922373, now seen corresponding path program 1 times [2024-12-02 08:15:49,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:49,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672618994] [2024-12-02 08:15:49,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:49,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:49,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:49,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672618994] [2024-12-02 08:15:49,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672618994] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:49,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:49,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:49,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074990999] [2024-12-02 08:15:49,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:49,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:49,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:49,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:49,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:49,681 INFO L87 Difference]: Start difference. First operand 929 states and 1414 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:49,864 INFO L93 Difference]: Finished difference Result 1757 states and 2692 transitions. [2024-12-02 08:15:49,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:15:49,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 08:15:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:49,868 INFO L225 Difference]: With dead ends: 1757 [2024-12-02 08:15:49,869 INFO L226 Difference]: Without dead ends: 931 [2024-12-02 08:15:49,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:15:49,870 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 106 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:49,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 616 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:49,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-12-02 08:15:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 929. [2024-12-02 08:15:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.5183189655172413) internal successors, (1409), 928 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1409 transitions. [2024-12-02 08:15:49,914 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1409 transitions. Word has length 64 [2024-12-02 08:15:49,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:49,915 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1409 transitions. [2024-12-02 08:15:49,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:49,915 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1409 transitions. [2024-12-02 08:15:49,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 08:15:49,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:49,916 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] [2024-12-02 08:15:49,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:15:49,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:49,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash 145774506, now seen corresponding path program 1 times [2024-12-02 08:15:49,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:49,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760961500] [2024-12-02 08:15:49,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:49,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:50,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:50,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760961500] [2024-12-02 08:15:50,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760961500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:50,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:15:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760074505] [2024-12-02 08:15:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:50,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:15:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:50,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:15:50,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:15:50,109 INFO L87 Difference]: Start difference. First operand 929 states and 1409 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:50,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:50,252 INFO L93 Difference]: Finished difference Result 1689 states and 2577 transitions. [2024-12-02 08:15:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:15:50,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-12-02 08:15:50,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:50,259 INFO L225 Difference]: With dead ends: 1689 [2024-12-02 08:15:50,259 INFO L226 Difference]: Without dead ends: 1504 [2024-12-02 08:15:50,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:15:50,261 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 645 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:50,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 926 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-12-02 08:15:50,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1123. [2024-12-02 08:15:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.5222816399286987) internal successors, (1708), 1122 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1708 transitions. [2024-12-02 08:15:50,301 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1708 transitions. Word has length 64 [2024-12-02 08:15:50,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:50,301 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1708 transitions. [2024-12-02 08:15:50,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1708 transitions. [2024-12-02 08:15:50,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 08:15:50,302 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:50,302 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] [2024-12-02 08:15:50,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:15:50,303 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:50,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:50,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1968503380, now seen corresponding path program 1 times [2024-12-02 08:15:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008052711] [2024-12-02 08:15:50,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:50,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:50,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:50,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008052711] [2024-12-02 08:15:50,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008052711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:50,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:50,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:15:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148562247] [2024-12-02 08:15:50,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:50,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:15:50,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:50,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:15:50,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:15:50,434 INFO L87 Difference]: Start difference. First operand 1123 states and 1708 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:50,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:50,640 INFO L93 Difference]: Finished difference Result 3265 states and 5000 transitions. [2024-12-02 08:15:50,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:15:50,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-12-02 08:15:50,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:50,648 INFO L225 Difference]: With dead ends: 3265 [2024-12-02 08:15:50,648 INFO L226 Difference]: Without dead ends: 2172 [2024-12-02 08:15:50,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:15:50,650 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 659 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:50,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 144 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:15:50,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-12-02 08:15:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2170. [2024-12-02 08:15:50,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.5209774089442138) internal successors, (3299), 2169 states have internal predecessors, (3299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3299 transitions. [2024-12-02 08:15:50,727 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3299 transitions. Word has length 65 [2024-12-02 08:15:50,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:50,727 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3299 transitions. [2024-12-02 08:15:50,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3299 transitions. [2024-12-02 08:15:50,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-02 08:15:50,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:50,729 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] [2024-12-02 08:15:50,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:15:50,729 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:50,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1032507974, now seen corresponding path program 1 times [2024-12-02 08:15:50,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:50,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118285899] [2024-12-02 08:15:50,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:50,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:50,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118285899] [2024-12-02 08:15:50,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118285899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:50,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:50,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:15:50,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458169471] [2024-12-02 08:15:50,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:50,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:15:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:50,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:15:50,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:15:50,862 INFO L87 Difference]: Start difference. First operand 2170 states and 3299 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:51,019 INFO L93 Difference]: Finished difference Result 4298 states and 6553 transitions. [2024-12-02 08:15:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:15:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-12-02 08:15:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:51,028 INFO L225 Difference]: With dead ends: 4298 [2024-12-02 08:15:51,028 INFO L226 Difference]: Without dead ends: 2170 [2024-12-02 08:15:51,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:15:51,031 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 414 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:51,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 113 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-12-02 08:15:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2024-12-02 08:15:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.500230520977409) internal successors, (3254), 2169 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3254 transitions. [2024-12-02 08:15:51,093 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3254 transitions. Word has length 66 [2024-12-02 08:15:51,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:51,093 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3254 transitions. [2024-12-02 08:15:51,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3254 transitions. [2024-12-02 08:15:51,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 08:15:51,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:51,095 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:51,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:15:51,095 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:51,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1666418400, now seen corresponding path program 1 times [2024-12-02 08:15:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:51,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309166039] [2024-12-02 08:15:51,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:51,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:51,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:51,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309166039] [2024-12-02 08:15:51,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309166039] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:51,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:51,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:15:51,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949477489] [2024-12-02 08:15:51,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:51,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:15:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:51,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:15:51,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:15:51,228 INFO L87 Difference]: Start difference. First operand 2170 states and 3254 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:51,378 INFO L93 Difference]: Finished difference Result 4306 states and 6473 transitions. [2024-12-02 08:15:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:15:51,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-02 08:15:51,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:51,387 INFO L225 Difference]: With dead ends: 4306 [2024-12-02 08:15:51,387 INFO L226 Difference]: Without dead ends: 2170 [2024-12-02 08:15:51,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:15:51,390 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 430 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:51,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 97 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-12-02 08:15:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2024-12-02 08:15:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.479483633010604) internal successors, (3209), 2169 states have internal predecessors, (3209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3209 transitions. [2024-12-02 08:15:51,464 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3209 transitions. Word has length 67 [2024-12-02 08:15:51,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:51,464 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3209 transitions. [2024-12-02 08:15:51,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3209 transitions. [2024-12-02 08:15:51,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 08:15:51,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:51,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:51,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:15:51,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:51,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1540735366, now seen corresponding path program 1 times [2024-12-02 08:15:51,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:51,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621923899] [2024-12-02 08:15:51,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:51,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:51,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:51,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621923899] [2024-12-02 08:15:51,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621923899] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:51,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:51,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:15:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967223273] [2024-12-02 08:15:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:51,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:15:51,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:51,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:15:51,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:15:51,593 INFO L87 Difference]: Start difference. First operand 2170 states and 3209 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:51,741 INFO L93 Difference]: Finished difference Result 4302 states and 6379 transitions. [2024-12-02 08:15:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:15:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-12-02 08:15:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:51,749 INFO L225 Difference]: With dead ends: 4302 [2024-12-02 08:15:51,750 INFO L226 Difference]: Without dead ends: 2170 [2024-12-02 08:15:51,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:15:51,753 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 412 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:51,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 105 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:15:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-12-02 08:15:51,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2024-12-02 08:15:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.458736745043799) internal successors, (3164), 2169 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3164 transitions. [2024-12-02 08:15:51,812 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3164 transitions. Word has length 68 [2024-12-02 08:15:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:51,812 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3164 transitions. [2024-12-02 08:15:51,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3164 transitions. [2024-12-02 08:15:51,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 08:15:51,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:51,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:51,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:15:51,814 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:51,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -147544852, now seen corresponding path program 1 times [2024-12-02 08:15:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:51,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896192364] [2024-12-02 08:15:51,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:52,256 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 08:15:52,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:52,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896192364] [2024-12-02 08:15:52,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896192364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:52,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:52,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:15:52,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303437977] [2024-12-02 08:15:52,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:52,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:15:52,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:52,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:15:52,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:15:52,258 INFO L87 Difference]: Start difference. First operand 2170 states and 3164 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:52,661 INFO L93 Difference]: Finished difference Result 6251 states and 9140 transitions. [2024-12-02 08:15:52,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:15:52,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 08:15:52,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:52,675 INFO L225 Difference]: With dead ends: 6251 [2024-12-02 08:15:52,675 INFO L226 Difference]: Without dead ends: 4195 [2024-12-02 08:15:52,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:15:52,679 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 576 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:52,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 360 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:15:52,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4195 states. [2024-12-02 08:15:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4195 to 2170. [2024-12-02 08:15:52,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.458275703088981) internal successors, (3163), 2169 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3163 transitions. [2024-12-02 08:15:52,761 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3163 transitions. Word has length 69 [2024-12-02 08:15:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:52,761 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3163 transitions. [2024-12-02 08:15:52,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3163 transitions. [2024-12-02 08:15:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 08:15:52,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:52,763 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:52,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:15:52,763 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:52,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash 682625962, now seen corresponding path program 1 times [2024-12-02 08:15:52,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:52,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262978334] [2024-12-02 08:15:52,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:52,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:53,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:53,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262978334] [2024-12-02 08:15:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262978334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:53,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:53,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:15:53,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927814328] [2024-12-02 08:15:53,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:53,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:15:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:53,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:15:53,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:15:53,388 INFO L87 Difference]: Start difference. First operand 2170 states and 3163 transitions. Second operand has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:54,083 INFO L93 Difference]: Finished difference Result 6506 states and 9412 transitions. [2024-12-02 08:15:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:15:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-12-02 08:15:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:54,096 INFO L225 Difference]: With dead ends: 6506 [2024-12-02 08:15:54,096 INFO L226 Difference]: Without dead ends: 4469 [2024-12-02 08:15:54,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:15:54,100 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 559 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:54,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 567 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:15:54,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2024-12-02 08:15:54,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 2179. [2024-12-02 08:15:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 2178 states have (on average 1.4563820018365472) internal successors, (3172), 2178 states have internal predecessors, (3172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:54,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 3172 transitions. [2024-12-02 08:15:54,177 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 3172 transitions. Word has length 70 [2024-12-02 08:15:54,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:54,177 INFO L471 AbstractCegarLoop]: Abstraction has 2179 states and 3172 transitions. [2024-12-02 08:15:54,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 3172 transitions. [2024-12-02 08:15:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 08:15:54,178 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:54,179 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:54,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:15:54,179 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:54,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash 158979165, now seen corresponding path program 1 times [2024-12-02 08:15:54,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:54,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129565835] [2024-12-02 08:15:54,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:54,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:54,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:54,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129565835] [2024-12-02 08:15:54,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129565835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:54,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:15:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490264845] [2024-12-02 08:15:54,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:54,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:15:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:54,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:15:54,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:15:54,534 INFO L87 Difference]: Start difference. First operand 2179 states and 3172 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:55,137 INFO L93 Difference]: Finished difference Result 4688 states and 6812 transitions. [2024-12-02 08:15:55,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:15:55,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-12-02 08:15:55,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:55,148 INFO L225 Difference]: With dead ends: 4688 [2024-12-02 08:15:55,148 INFO L226 Difference]: Without dead ends: 2618 [2024-12-02 08:15:55,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:15:55,151 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 692 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:55,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 593 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:15:55,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2024-12-02 08:15:55,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2170. [2024-12-02 08:15:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.4568925772245274) internal successors, (3160), 2169 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3160 transitions. [2024-12-02 08:15:55,186 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3160 transitions. Word has length 70 [2024-12-02 08:15:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:55,186 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3160 transitions. [2024-12-02 08:15:55,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3160 transitions. [2024-12-02 08:15:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 08:15:55,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:55,188 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:55,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:15:55,188 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:55,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash 559312961, now seen corresponding path program 1 times [2024-12-02 08:15:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:55,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413629310] [2024-12-02 08:15:55,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:55,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:55,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413629310] [2024-12-02 08:15:55,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413629310] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:55,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:55,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:15:55,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371033027] [2024-12-02 08:15:55,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:55,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:15:55,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:55,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:15:55,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:15:55,494 INFO L87 Difference]: Start difference. First operand 2170 states and 3160 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:56,007 INFO L93 Difference]: Finished difference Result 6383 states and 9292 transitions. [2024-12-02 08:15:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:15:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-12-02 08:15:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:56,017 INFO L225 Difference]: With dead ends: 6383 [2024-12-02 08:15:56,018 INFO L226 Difference]: Without dead ends: 4328 [2024-12-02 08:15:56,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:15:56,021 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 825 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:56,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 470 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:15:56,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2024-12-02 08:15:56,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 2170. [2024-12-02 08:15:56,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.45412632549562) internal successors, (3154), 2169 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3154 transitions. [2024-12-02 08:15:56,070 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3154 transitions. Word has length 70 [2024-12-02 08:15:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:56,071 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3154 transitions. [2024-12-02 08:15:56,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3154 transitions. [2024-12-02 08:15:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 08:15:56,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:56,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:56,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:15:56,072 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:56,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1255258839, now seen corresponding path program 1 times [2024-12-02 08:15:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:56,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651216456] [2024-12-02 08:15:56,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:56,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:56,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:56,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651216456] [2024-12-02 08:15:56,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651216456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:56,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:56,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:15:56,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673628448] [2024-12-02 08:15:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:56,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:15:56,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:56,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:15:56,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:15:56,371 INFO L87 Difference]: Start difference. First operand 2170 states and 3154 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:56,905 INFO L93 Difference]: Finished difference Result 6338 states and 9214 transitions. [2024-12-02 08:15:56,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:15:56,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-12-02 08:15:56,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:56,912 INFO L225 Difference]: With dead ends: 6338 [2024-12-02 08:15:56,912 INFO L226 Difference]: Without dead ends: 4313 [2024-12-02 08:15:56,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:15:56,915 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 818 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:56,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 441 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:15:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-12-02 08:15:56,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 2170. [2024-12-02 08:15:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.449976947902259) internal successors, (3145), 2169 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3145 transitions. [2024-12-02 08:15:56,950 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3145 transitions. Word has length 71 [2024-12-02 08:15:56,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:56,950 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 3145 transitions. [2024-12-02 08:15:56,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3145 transitions. [2024-12-02 08:15:56,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 08:15:56,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:56,951 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] [2024-12-02 08:15:56,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:15:56,952 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:56,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:56,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1977550344, now seen corresponding path program 1 times [2024-12-02 08:15:56,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:56,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051487225] [2024-12-02 08:15:56,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:57,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:57,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051487225] [2024-12-02 08:15:57,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051487225] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:57,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:57,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:15:57,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554225084] [2024-12-02 08:15:57,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:57,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:15:57,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:57,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:15:57,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:15:57,743 INFO L87 Difference]: Start difference. First operand 2170 states and 3145 transitions. Second operand has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:58,772 INFO L93 Difference]: Finished difference Result 9005 states and 13146 transitions. [2024-12-02 08:15:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:15:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-12-02 08:15:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:58,789 INFO L225 Difference]: With dead ends: 9005 [2024-12-02 08:15:58,789 INFO L226 Difference]: Without dead ends: 8267 [2024-12-02 08:15:58,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:15:58,793 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 916 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:58,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1796 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:15:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2024-12-02 08:15:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 2168. [2024-12-02 08:15:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2167 states have (on average 1.4462390401476697) internal successors, (3134), 2167 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 3134 transitions. [2024-12-02 08:15:58,895 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 3134 transitions. Word has length 72 [2024-12-02 08:15:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:58,895 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 3134 transitions. [2024-12-02 08:15:58,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:15:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 3134 transitions. [2024-12-02 08:15:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 08:15:58,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:58,897 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] [2024-12-02 08:15:58,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:15:58,898 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:58,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:58,898 INFO L85 PathProgramCache]: Analyzing trace with hash 821766808, now seen corresponding path program 1 times [2024-12-02 08:15:58,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:15:58,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187717585] [2024-12-02 08:15:58,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:58,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:15:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:15:59,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:15:59,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187717585] [2024-12-02 08:15:59,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187717585] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:15:59,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:15:59,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:15:59,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201305232] [2024-12-02 08:15:59,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:59,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:15:59,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:15:59,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:15:59,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:15:59,614 INFO L87 Difference]: Start difference. First operand 2168 states and 3134 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:00,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:00,410 INFO L93 Difference]: Finished difference Result 3276 states and 4753 transitions. [2024-12-02 08:16:00,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:16:00,410 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-12-02 08:16:00,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:00,416 INFO L225 Difference]: With dead ends: 3276 [2024-12-02 08:16:00,416 INFO L226 Difference]: Without dead ends: 2503 [2024-12-02 08:16:00,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:16:00,418 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 691 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:00,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1216 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:16:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2024-12-02 08:16:00,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 2135. [2024-12-02 08:16:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2134 states have (on average 1.4475164011246486) internal successors, (3089), 2134 states have internal predecessors, (3089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3089 transitions. [2024-12-02 08:16:00,448 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3089 transitions. Word has length 72 [2024-12-02 08:16:00,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:00,448 INFO L471 AbstractCegarLoop]: Abstraction has 2135 states and 3089 transitions. [2024-12-02 08:16:00,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3089 transitions. [2024-12-02 08:16:00,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 08:16:00,449 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:00,449 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] [2024-12-02 08:16:00,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:16:00,449 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:00,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:00,450 INFO L85 PathProgramCache]: Analyzing trace with hash 727688951, now seen corresponding path program 1 times [2024-12-02 08:16:00,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:00,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274260523] [2024-12-02 08:16:00,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:00,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:01,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:01,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274260523] [2024-12-02 08:16:01,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274260523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:01,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:01,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:16:01,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856728] [2024-12-02 08:16:01,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:01,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:16:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:01,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:16:01,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:16:01,185 INFO L87 Difference]: Start difference. First operand 2135 states and 3089 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:01,969 INFO L93 Difference]: Finished difference Result 4918 states and 7161 transitions. [2024-12-02 08:16:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:16:01,969 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-12-02 08:16:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:01,978 INFO L225 Difference]: With dead ends: 4918 [2024-12-02 08:16:01,978 INFO L226 Difference]: Without dead ends: 4166 [2024-12-02 08:16:01,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:16:01,980 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 662 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:01,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1279 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:16:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2024-12-02 08:16:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 2117. [2024-12-02 08:16:02,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 2116 states have (on average 1.4484877126654063) internal successors, (3065), 2116 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3065 transitions. [2024-12-02 08:16:02,025 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3065 transitions. Word has length 72 [2024-12-02 08:16:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:02,026 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 3065 transitions. [2024-12-02 08:16:02,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3065 transitions. [2024-12-02 08:16:02,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 08:16:02,027 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:02,027 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:02,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:16:02,027 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:02,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:02,027 INFO L85 PathProgramCache]: Analyzing trace with hash 142597694, now seen corresponding path program 1 times [2024-12-02 08:16:02,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:02,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006955825] [2024-12-02 08:16:02,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:02,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:02,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:02,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006955825] [2024-12-02 08:16:02,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006955825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:02,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:02,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:16:02,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442103678] [2024-12-02 08:16:02,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:02,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:16:02,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:02,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:16:02,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:16:02,163 INFO L87 Difference]: Start difference. First operand 2117 states and 3065 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:02,194 INFO L93 Difference]: Finished difference Result 5006 states and 7301 transitions. [2024-12-02 08:16:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:16:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-12-02 08:16:02,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:02,198 INFO L225 Difference]: With dead ends: 5006 [2024-12-02 08:16:02,198 INFO L226 Difference]: Without dead ends: 2990 [2024-12-02 08:16:02,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:16:02,201 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 72 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:02,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 351 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:16:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-12-02 08:16:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2988. [2024-12-02 08:16:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 1.4449280214261802) internal successors, (4316), 2987 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 4316 transitions. [2024-12-02 08:16:02,232 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 4316 transitions. Word has length 73 [2024-12-02 08:16:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:02,232 INFO L471 AbstractCegarLoop]: Abstraction has 2988 states and 4316 transitions. [2024-12-02 08:16:02,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 4316 transitions. [2024-12-02 08:16:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 08:16:02,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:02,233 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:02,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:16:02,233 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:02,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:02,234 INFO L85 PathProgramCache]: Analyzing trace with hash 976329794, now seen corresponding path program 1 times [2024-12-02 08:16:02,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:02,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757339307] [2024-12-02 08:16:02,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:02,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:02,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757339307] [2024-12-02 08:16:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757339307] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:02,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:02,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:16:02,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569760614] [2024-12-02 08:16:02,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:02,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:16:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:02,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:16:02,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:16:02,397 INFO L87 Difference]: Start difference. First operand 2988 states and 4316 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:02,429 INFO L93 Difference]: Finished difference Result 3010 states and 4347 transitions. [2024-12-02 08:16:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:16:02,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-12-02 08:16:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:02,434 INFO L225 Difference]: With dead ends: 3010 [2024-12-02 08:16:02,434 INFO L226 Difference]: Without dead ends: 3008 [2024-12-02 08:16:02,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:16:02,435 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:02,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:16:02,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-12-02 08:16:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2024-12-02 08:16:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.4343199201862322) internal successors, (4313), 3007 states have internal predecessors, (4313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4313 transitions. [2024-12-02 08:16:02,465 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4313 transitions. Word has length 73 [2024-12-02 08:16:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:02,465 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4313 transitions. [2024-12-02 08:16:02,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4313 transitions. [2024-12-02 08:16:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 08:16:02,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:02,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:02,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:16:02,466 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:02,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:02,467 INFO L85 PathProgramCache]: Analyzing trace with hash 982723524, now seen corresponding path program 1 times [2024-12-02 08:16:02,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:02,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522276582] [2024-12-02 08:16:02,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:02,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522276582] [2024-12-02 08:16:02,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522276582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:02,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:02,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:16:02,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043608212] [2024-12-02 08:16:02,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:02,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:16:02,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:02,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:16:02,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:16:02,982 INFO L87 Difference]: Start difference. First operand 3008 states and 4313 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:03,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:03,553 INFO L93 Difference]: Finished difference Result 6659 states and 9598 transitions. [2024-12-02 08:16:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:16:03,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-12-02 08:16:03,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:03,560 INFO L225 Difference]: With dead ends: 6659 [2024-12-02 08:16:03,561 INFO L226 Difference]: Without dead ends: 5727 [2024-12-02 08:16:03,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:16:03,564 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 505 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:03,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1297 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:16:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2024-12-02 08:16:03,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 2905. [2024-12-02 08:16:03,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2905 states, 2904 states have (on average 1.4359504132231404) internal successors, (4170), 2904 states have internal predecessors, (4170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 4170 transitions. [2024-12-02 08:16:03,626 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 4170 transitions. Word has length 73 [2024-12-02 08:16:03,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:03,626 INFO L471 AbstractCegarLoop]: Abstraction has 2905 states and 4170 transitions. [2024-12-02 08:16:03,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 4170 transitions. [2024-12-02 08:16:03,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-02 08:16:03,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:03,630 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:16:03,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:16:03,630 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:03,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1282791167, now seen corresponding path program 1 times [2024-12-02 08:16:03,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:03,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52934628] [2024-12-02 08:16:03,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:03,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:03,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:03,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:03,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52934628] [2024-12-02 08:16:03,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52934628] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:03,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:03,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:03,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556332897] [2024-12-02 08:16:03,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:03,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:16:03,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:03,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:16:03,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:03,800 INFO L87 Difference]: Start difference. First operand 2905 states and 4170 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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 08:16:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:03,833 INFO L93 Difference]: Finished difference Result 6167 states and 8889 transitions. [2024-12-02 08:16:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:16:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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 97 [2024-12-02 08:16:03,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:03,838 INFO L225 Difference]: With dead ends: 6167 [2024-12-02 08:16:03,838 INFO L226 Difference]: Without dead ends: 4131 [2024-12-02 08:16:03,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:03,841 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:03,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 320 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:16:03,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2024-12-02 08:16:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3945. [2024-12-02 08:16:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3944 states have (on average 1.4269776876267748) internal successors, (5628), 3944 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5628 transitions. [2024-12-02 08:16:03,901 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5628 transitions. Word has length 97 [2024-12-02 08:16:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:03,901 INFO L471 AbstractCegarLoop]: Abstraction has 3945 states and 5628 transitions. [2024-12-02 08:16:03,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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 08:16:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5628 transitions. [2024-12-02 08:16:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 08:16:03,902 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:03,902 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:16:03,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:16:03,903 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:03,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:03,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1136033977, now seen corresponding path program 1 times [2024-12-02 08:16:03,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:03,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058186484] [2024-12-02 08:16:03,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:03,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:04,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058186484] [2024-12-02 08:16:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058186484] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:04,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:04,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:16:04,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229308162] [2024-12-02 08:16:04,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:04,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:16:04,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:04,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:16:04,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:16:04,056 INFO L87 Difference]: Start difference. First operand 3945 states and 5628 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 08:16:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:04,336 INFO L93 Difference]: Finished difference Result 13309 states and 19184 transitions. [2024-12-02 08:16:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:16:04,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 99 [2024-12-02 08:16:04,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:04,346 INFO L225 Difference]: With dead ends: 13309 [2024-12-02 08:16:04,346 INFO L226 Difference]: Without dead ends: 9467 [2024-12-02 08:16:04,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:16:04,351 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 711 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:04,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 268 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:16:04,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9467 states. [2024-12-02 08:16:04,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9467 to 8625. [2024-12-02 08:16:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8625 states, 8624 states have (on average 1.4286873840445269) internal successors, (12321), 8624 states have internal predecessors, (12321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:04,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8625 states to 8625 states and 12321 transitions. [2024-12-02 08:16:04,475 INFO L78 Accepts]: Start accepts. Automaton has 8625 states and 12321 transitions. Word has length 99 [2024-12-02 08:16:04,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:04,475 INFO L471 AbstractCegarLoop]: Abstraction has 8625 states and 12321 transitions. [2024-12-02 08:16:04,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 08:16:04,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8625 states and 12321 transitions. [2024-12-02 08:16:04,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 08:16:04,477 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:04,477 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:16:04,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:16:04,477 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:04,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:04,478 INFO L85 PathProgramCache]: Analyzing trace with hash -713465523, now seen corresponding path program 1 times [2024-12-02 08:16:04,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:04,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111340577] [2024-12-02 08:16:04,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:04,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:04,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:04,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111340577] [2024-12-02 08:16:04,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111340577] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:04,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:04,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:16:04,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244793968] [2024-12-02 08:16:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:04,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:16:04,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:04,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:16:04,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:16:04,634 INFO L87 Difference]: Start difference. First operand 8625 states and 12321 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 08:16:04,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:04,972 INFO L93 Difference]: Finished difference Result 31381 states and 45311 transitions. [2024-12-02 08:16:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:16:04,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 99 [2024-12-02 08:16:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:04,999 INFO L225 Difference]: With dead ends: 31381 [2024-12-02 08:16:05,000 INFO L226 Difference]: Without dead ends: 22859 [2024-12-02 08:16:05,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:16:05,011 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 796 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:05,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 270 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:16:05,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22859 states. [2024-12-02 08:16:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22859 to 18825. [2024-12-02 08:16:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18825 states, 18824 states have (on average 1.4281236719082022) internal successors, (26883), 18824 states have internal predecessors, (26883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18825 states to 18825 states and 26883 transitions. [2024-12-02 08:16:05,237 INFO L78 Accepts]: Start accepts. Automaton has 18825 states and 26883 transitions. Word has length 99 [2024-12-02 08:16:05,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:05,237 INFO L471 AbstractCegarLoop]: Abstraction has 18825 states and 26883 transitions. [2024-12-02 08:16:05,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 08:16:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 18825 states and 26883 transitions. [2024-12-02 08:16:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 08:16:05,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:05,239 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 08:16:05,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:16:05,239 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:05,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:05,240 INFO L85 PathProgramCache]: Analyzing trace with hash 748112851, now seen corresponding path program 1 times [2024-12-02 08:16:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:05,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992298025] [2024-12-02 08:16:05,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:05,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:05,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:05,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992298025] [2024-12-02 08:16:05,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992298025] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:05,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:05,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:16:05,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577707993] [2024-12-02 08:16:05,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:05,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:16:05,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:05,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:16:05,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:16:05,351 INFO L87 Difference]: Start difference. First operand 18825 states and 26883 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 08:16:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:05,697 INFO L93 Difference]: Finished difference Result 42655 states and 61170 transitions. [2024-12-02 08:16:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:16:05,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 99 [2024-12-02 08:16:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:05,718 INFO L225 Difference]: With dead ends: 42655 [2024-12-02 08:16:05,718 INFO L226 Difference]: Without dead ends: 23933 [2024-12-02 08:16:05,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:16:05,731 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 720 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:05,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 304 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:16:05,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23933 states. [2024-12-02 08:16:05,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23933 to 20427. [2024-12-02 08:16:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20427 states, 20426 states have (on average 1.4250465093508273) internal successors, (29108), 20426 states have internal predecessors, (29108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:06,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20427 states to 20427 states and 29108 transitions. [2024-12-02 08:16:06,032 INFO L78 Accepts]: Start accepts. Automaton has 20427 states and 29108 transitions. Word has length 99 [2024-12-02 08:16:06,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:06,032 INFO L471 AbstractCegarLoop]: Abstraction has 20427 states and 29108 transitions. [2024-12-02 08:16:06,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 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 08:16:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 20427 states and 29108 transitions. [2024-12-02 08:16:06,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 08:16:06,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:06,035 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:06,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:16:06,036 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:06,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:06,036 INFO L85 PathProgramCache]: Analyzing trace with hash 155619384, now seen corresponding path program 1 times [2024-12-02 08:16:06,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:06,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48613639] [2024-12-02 08:16:06,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:06,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 08:16:06,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:06,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48613639] [2024-12-02 08:16:06,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48613639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:06,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:06,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:06,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368742500] [2024-12-02 08:16:06,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:06,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:16:06,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:06,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:16:06,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:06,184 INFO L87 Difference]: Start difference. First operand 20427 states and 29108 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:06,268 INFO L93 Difference]: Finished difference Result 38959 states and 55378 transitions. [2024-12-02 08:16:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:16:06,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-12-02 08:16:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:06,283 INFO L225 Difference]: With dead ends: 38959 [2024-12-02 08:16:06,284 INFO L226 Difference]: Without dead ends: 18647 [2024-12-02 08:16:06,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:06,295 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 59 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:06,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 311 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:16:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18647 states. [2024-12-02 08:16:06,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18647 to 18105. [2024-12-02 08:16:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18105 states, 18104 states have (on average 1.4064847547503314) internal successors, (25463), 18104 states have internal predecessors, (25463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:06,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18105 states to 18105 states and 25463 transitions. [2024-12-02 08:16:06,473 INFO L78 Accepts]: Start accepts. Automaton has 18105 states and 25463 transitions. Word has length 122 [2024-12-02 08:16:06,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:06,473 INFO L471 AbstractCegarLoop]: Abstraction has 18105 states and 25463 transitions. [2024-12-02 08:16:06,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:06,473 INFO L276 IsEmpty]: Start isEmpty. Operand 18105 states and 25463 transitions. [2024-12-02 08:16:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 08:16:06,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:06,477 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:06,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:16:06,477 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:06,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2025959497, now seen corresponding path program 1 times [2024-12-02 08:16:06,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:06,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613338237] [2024-12-02 08:16:06,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:06,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 08:16:06,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:06,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613338237] [2024-12-02 08:16:06,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613338237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:06,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:06,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:06,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489350338] [2024-12-02 08:16:06,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:06,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:16:06,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:06,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:16:06,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:06,640 INFO L87 Difference]: Start difference. First operand 18105 states and 25463 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 08:16:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:06,748 INFO L93 Difference]: Finished difference Result 34345 states and 48129 transitions. [2024-12-02 08:16:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:16:06,749 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 123 [2024-12-02 08:16:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:06,764 INFO L225 Difference]: With dead ends: 34345 [2024-12-02 08:16:06,765 INFO L226 Difference]: Without dead ends: 16343 [2024-12-02 08:16:06,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:06,776 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 52 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:06,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 312 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:16:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16343 states. [2024-12-02 08:16:06,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16343 to 15837. [2024-12-02 08:16:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15837 states, 15836 states have (on average 1.385135135135135) internal successors, (21935), 15836 states have internal predecessors, (21935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15837 states to 15837 states and 21935 transitions. [2024-12-02 08:16:07,011 INFO L78 Accepts]: Start accepts. Automaton has 15837 states and 21935 transitions. Word has length 123 [2024-12-02 08:16:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:07,011 INFO L471 AbstractCegarLoop]: Abstraction has 15837 states and 21935 transitions. [2024-12-02 08:16:07,011 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 08:16:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 15837 states and 21935 transitions. [2024-12-02 08:16:07,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 08:16:07,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:07,014 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 08:16:07,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:16:07,015 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:07,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1620536471, now seen corresponding path program 1 times [2024-12-02 08:16:07,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:07,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731229177] [2024-12-02 08:16:07,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 08:16:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:07,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731229177] [2024-12-02 08:16:07,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731229177] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:07,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:16:07,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:16:07,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793971629] [2024-12-02 08:16:07,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:07,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:16:07,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:07,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:16:07,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:07,166 INFO L87 Difference]: Start difference. First operand 15837 states and 21935 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:07,280 INFO L93 Difference]: Finished difference Result 45457 states and 62561 transitions. [2024-12-02 08:16:07,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:16:07,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-12-02 08:16:07,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:07,307 INFO L225 Difference]: With dead ends: 45457 [2024-12-02 08:16:07,307 INFO L226 Difference]: Without dead ends: 29723 [2024-12-02 08:16:07,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:16:07,320 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 45 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:07,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 313 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:16:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29723 states. [2024-12-02 08:16:07,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29723 to 27369. [2024-12-02 08:16:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27369 states, 27368 states have (on average 1.3656460099386145) internal successors, (37375), 27368 states have internal predecessors, (37375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:07,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27369 states to 27369 states and 37375 transitions. [2024-12-02 08:16:07,670 INFO L78 Accepts]: Start accepts. Automaton has 27369 states and 37375 transitions. Word has length 124 [2024-12-02 08:16:07,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:07,670 INFO L471 AbstractCegarLoop]: Abstraction has 27369 states and 37375 transitions. [2024-12-02 08:16:07,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:07,670 INFO L276 IsEmpty]: Start isEmpty. Operand 27369 states and 37375 transitions. [2024-12-02 08:16:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 08:16:07,672 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:07,672 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:07,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:16:07,672 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:07,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1131627674, now seen corresponding path program 1 times [2024-12-02 08:16:07,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:07,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908146712] [2024-12-02 08:16:07,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:07,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:08,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:08,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908146712] [2024-12-02 08:16:08,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908146712] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:08,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245866141] [2024-12-02 08:16:08,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:08,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:08,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:16:08,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:16:08,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:16:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:08,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-02 08:16:08,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-02 08:16:17,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:16:17,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245866141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:16:17,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:16:17,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [11] total 39 [2024-12-02 08:16:17,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851681746] [2024-12-02 08:16:17,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:17,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 08:16:17,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:17,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 08:16:17,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1340, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:16:17,404 INFO L87 Difference]: Start difference. First operand 27369 states and 37375 transitions. Second operand has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:26,551 INFO L93 Difference]: Finished difference Result 79345 states and 108417 transitions. [2024-12-02 08:16:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 08:16:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 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 08:16:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:26,597 INFO L225 Difference]: With dead ends: 79345 [2024-12-02 08:16:26,597 INFO L226 Difference]: Without dead ends: 54665 [2024-12-02 08:16:26,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=451, Invalid=2518, Unknown=1, NotChecked=0, Total=2970 [2024-12-02 08:16:26,615 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 403 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:26,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 964 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 08:16:26,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54665 states. [2024-12-02 08:16:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54665 to 27377. [2024-12-02 08:16:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27377 states, 27376 states have (on average 1.3655756867329047) internal successors, (37384), 27376 states have internal predecessors, (37384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27377 states to 27377 states and 37384 transitions. [2024-12-02 08:16:27,045 INFO L78 Accepts]: Start accepts. Automaton has 27377 states and 37384 transitions. Word has length 125 [2024-12-02 08:16:27,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:27,045 INFO L471 AbstractCegarLoop]: Abstraction has 27377 states and 37384 transitions. [2024-12-02 08:16:27,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 27377 states and 37384 transitions. [2024-12-02 08:16:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 08:16:27,047 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:27,047 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 08:16:27,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:16:27,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:27,248 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:27,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:27,249 INFO L85 PathProgramCache]: Analyzing trace with hash 127944595, now seen corresponding path program 1 times [2024-12-02 08:16:27,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:27,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608379471] [2024-12-02 08:16:27,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:27,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:27,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:27,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608379471] [2024-12-02 08:16:27,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608379471] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:27,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077802932] [2024-12-02 08:16:27,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:27,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:27,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:16:27,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:16:27,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:16:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:27,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:16:27,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:28,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:30,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077802932] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:16:30,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:16:30,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 28 [2024-12-02 08:16:30,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409555480] [2024-12-02 08:16:30,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:16:30,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 08:16:30,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:30,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 08:16:30,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:16:30,485 INFO L87 Difference]: Start difference. First operand 27377 states and 37384 transitions. Second operand has 29 states, 29 states have (on average 11.344827586206897) internal successors, (329), 28 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:34,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:34,585 INFO L93 Difference]: Finished difference Result 179195 states and 242260 transitions. [2024-12-02 08:16:34,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-12-02 08:16:34,586 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.344827586206897) internal successors, (329), 28 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-12-02 08:16:34,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:34,730 INFO L225 Difference]: With dead ends: 179195 [2024-12-02 08:16:34,730 INFO L226 Difference]: Without dead ends: 151929 [2024-12-02 08:16:34,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1998 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1715, Invalid=5767, Unknown=0, NotChecked=0, Total=7482 [2024-12-02 08:16:34,765 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 2645 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:34,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 1696 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:16:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151929 states. [2024-12-02 08:16:35,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151929 to 65519. [2024-12-02 08:16:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65519 states, 65518 states have (on average 1.3615189718855887) internal successors, (89204), 65518 states have internal predecessors, (89204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65519 states to 65519 states and 89204 transitions. [2024-12-02 08:16:35,847 INFO L78 Accepts]: Start accepts. Automaton has 65519 states and 89204 transitions. Word has length 126 [2024-12-02 08:16:35,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:35,847 INFO L471 AbstractCegarLoop]: Abstraction has 65519 states and 89204 transitions. [2024-12-02 08:16:35,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.344827586206897) internal successors, (329), 28 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 65519 states and 89204 transitions. [2024-12-02 08:16:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 08:16:35,851 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:35,851 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 08:16:35,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:16:36,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:36,052 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:36,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:36,052 INFO L85 PathProgramCache]: Analyzing trace with hash -612030348, now seen corresponding path program 1 times [2024-12-02 08:16:36,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:16:36,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033554385] [2024-12-02 08:16:36,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:36,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:16:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:16:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033554385] [2024-12-02 08:16:36,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033554385] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:36,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828433812] [2024-12-02 08:16:36,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:36,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:16:36,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:16:36,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:16:36,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:16:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:36,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:16:36,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:37,684 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:37,684 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:16:39,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828433812] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:16:39,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:16:39,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2024-12-02 08:16:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649600697] [2024-12-02 08:16:39,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:16:39,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 08:16:39,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:16:39,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 08:16:39,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:16:39,262 INFO L87 Difference]: Start difference. First operand 65519 states and 89204 transitions. Second operand has 32 states, 32 states have (on average 10.6875) internal successors, (342), 31 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:16:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:53,740 INFO L93 Difference]: Finished difference Result 578112 states and 779011 transitions. [2024-12-02 08:16:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-12-02 08:16:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.6875) internal successors, (342), 31 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-12-02 08:16:53,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:54,479 INFO L225 Difference]: With dead ends: 578112 [2024-12-02 08:16:54,479 INFO L226 Difference]: Without dead ends: 512734 [2024-12-02 08:16:54,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10634 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=4730, Invalid=28212, Unknown=0, NotChecked=0, Total=32942 [2024-12-02 08:16:54,563 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 2988 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 4676 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 4729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:54,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 3491 Invalid, 4729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 4676 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 08:16:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512734 states. [2024-12-02 08:16:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512734 to 317638. [2024-12-02 08:16:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317638 states, 317637 states have (on average 1.353104329785258) internal successors, (429796), 317637 states have internal predecessors, (429796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:17:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317638 states to 317638 states and 429796 transitions. [2024-12-02 08:17:00,864 INFO L78 Accepts]: Start accepts. Automaton has 317638 states and 429796 transitions. Word has length 126 [2024-12-02 08:17:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:17:00,864 INFO L471 AbstractCegarLoop]: Abstraction has 317638 states and 429796 transitions. [2024-12-02 08:17:00,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.6875) internal successors, (342), 31 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:17:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 317638 states and 429796 transitions. [2024-12-02 08:17:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 08:17:00,887 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:17:00,888 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-12-02 08:17:00,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:17:01,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:17:01,088 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:17:01,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:17:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash -887349454, now seen corresponding path program 1 times [2024-12-02 08:17:01,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:17:01,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631534051] [2024-12-02 08:17:01,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:01,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:17:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:01,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:17:01,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631534051] [2024-12-02 08:17:01,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631534051] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:17:01,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770856497] [2024-12-02 08:17:01,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:01,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:17:01,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:17:01,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:17:01,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:17:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:01,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:17:01,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:17:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:02,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:17:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:05,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770856497] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:17:05,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:17:05,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2024-12-02 08:17:05,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771501948] [2024-12-02 08:17:05,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:17:05,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 08:17:05,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:17:05,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 08:17:05,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:17:05,106 INFO L87 Difference]: Start difference. First operand 317638 states and 429796 transitions. Second operand has 29 states, 29 states have (on average 11.96551724137931) internal successors, (347), 28 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 08:17:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:17:21,683 INFO L93 Difference]: Finished difference Result 1656401 states and 2229299 transitions. [2024-12-02 08:17:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2024-12-02 08:17:21,684 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 11.96551724137931) internal successors, (347), 28 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 126 [2024-12-02 08:17:21,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:17:23,425 INFO L225 Difference]: With dead ends: 1656401 [2024-12-02 08:17:23,425 INFO L226 Difference]: Without dead ends: 1348021 [2024-12-02 08:17:23,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11779 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=4113, Invalid=30297, Unknown=0, NotChecked=0, Total=34410 [2024-12-02 08:17:23,749 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 3717 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 5452 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 5513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 5452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:17:23,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 2839 Invalid, 5513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 5452 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 08:17:24,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348021 states. [2024-12-02 08:17:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348021 to 543011. [2024-12-02 08:17:36,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543011 states, 543010 states have (on average 1.344413546711847) internal successors, (730030), 543010 states have internal predecessors, (730030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:17:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543011 states to 543011 states and 730030 transitions. [2024-12-02 08:17:38,182 INFO L78 Accepts]: Start accepts. Automaton has 543011 states and 730030 transitions. Word has length 126 [2024-12-02 08:17:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:17:38,183 INFO L471 AbstractCegarLoop]: Abstraction has 543011 states and 730030 transitions. [2024-12-02 08:17:38,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 11.96551724137931) internal successors, (347), 28 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 08:17:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 543011 states and 730030 transitions. [2024-12-02 08:17:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:17:38,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:17:38,208 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 08:17:38,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:17:38,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 08:17:38,409 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:17:38,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:17:38,410 INFO L85 PathProgramCache]: Analyzing trace with hash 626177035, now seen corresponding path program 1 times [2024-12-02 08:17:38,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:17:38,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678602304] [2024-12-02 08:17:38,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:38,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:17:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:38,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:17:38,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678602304] [2024-12-02 08:17:38,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678602304] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:17:38,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927668360] [2024-12-02 08:17:38,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:38,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:17:38,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:17:38,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:17:38,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:17:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:38,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:17:38,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:17:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:40,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:17:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:17:41,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927668360] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:17:41,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:17:41,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 34 [2024-12-02 08:17:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780680393] [2024-12-02 08:17:41,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:17:41,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 08:17:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:17:41,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 08:17:41,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 08:17:41,833 INFO L87 Difference]: Start difference. First operand 543011 states and 730030 transitions. Second operand has 35 states, 35 states have (on average 9.371428571428572) internal successors, (328), 34 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:17:53,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:17:53,136 INFO L93 Difference]: Finished difference Result 2271500 states and 3036665 transitions. [2024-12-02 08:17:53,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-12-02 08:17:53,137 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 9.371428571428572) internal successors, (328), 34 states have internal predecessors, (328), 0 states have call successors, (0), 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 127 [2024-12-02 08:17:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:17:55,886 INFO L225 Difference]: With dead ends: 2271500 [2024-12-02 08:17:55,886 INFO L226 Difference]: Without dead ends: 2050728 [2024-12-02 08:17:56,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2593 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2094, Invalid=7218, Unknown=0, NotChecked=0, Total=9312 [2024-12-02 08:17:56,080 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 3816 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:17:56,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3816 Valid, 2643 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:17:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050728 states. [2024-12-02 08:18:10,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050728 to 542965. [2024-12-02 08:18:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542965 states, 542964 states have (on average 1.3444372002563705) internal successors, (729981), 542964 states have internal predecessors, (729981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:18:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542965 states to 542965 states and 729981 transitions. [2024-12-02 08:18:12,232 INFO L78 Accepts]: Start accepts. Automaton has 542965 states and 729981 transitions. Word has length 127 [2024-12-02 08:18:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:12,233 INFO L471 AbstractCegarLoop]: Abstraction has 542965 states and 729981 transitions. [2024-12-02 08:18:12,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 9.371428571428572) internal successors, (328), 34 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:18:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 542965 states and 729981 transitions. [2024-12-02 08:18:12,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:18:12,246 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:12,246 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 08:18:12,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:18:12,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-12-02 08:18:12,446 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:12,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash -449588767, now seen corresponding path program 1 times [2024-12-02 08:18:12,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:12,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574582186] [2024-12-02 08:18:12,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:12,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 08:18:12,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:12,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574582186] [2024-12-02 08:18:12,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574582186] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:18:12,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:18:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:18:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771654210] [2024-12-02 08:18:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:18:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:18:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:12,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:18:12,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:18:12,793 INFO L87 Difference]: Start difference. First operand 542965 states and 729981 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:18:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:18:15,118 INFO L93 Difference]: Finished difference Result 1002153 states and 1350791 transitions. [2024-12-02 08:18:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:18:15,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 127 [2024-12-02 08:18:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:18:15,869 INFO L225 Difference]: With dead ends: 1002153 [2024-12-02 08:18:15,869 INFO L226 Difference]: Without dead ends: 717529 [2024-12-02 08:18:15,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:18:15,995 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 94 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:18:15,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 250 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:18:16,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717529 states. [2024-12-02 08:18:23,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717529 to 540149. [2024-12-02 08:18:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540149 states, 540148 states have (on average 1.3403363522590106) internal successors, (723980), 540148 states have internal predecessors, (723980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:18:24,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540149 states to 540149 states and 723980 transitions. [2024-12-02 08:18:24,936 INFO L78 Accepts]: Start accepts. Automaton has 540149 states and 723980 transitions. Word has length 127 [2024-12-02 08:18:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:18:24,936 INFO L471 AbstractCegarLoop]: Abstraction has 540149 states and 723980 transitions. [2024-12-02 08:18:24,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:18:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 540149 states and 723980 transitions. [2024-12-02 08:18:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-02 08:18:25,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:18:25,242 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 08:18:25,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:18:25,242 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:18:25,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:18:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1470266694, now seen corresponding path program 1 times [2024-12-02 08:18:25,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:18:25,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458871503] [2024-12-02 08:18:25,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:25,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:18:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:26,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:18:26,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458871503] [2024-12-02 08:18:26,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458871503] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:18:26,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31728711] [2024-12-02 08:18:26,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:18:26,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:18:26,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:18:26,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:18:26,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:18:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:18:26,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-12-02 08:18:26,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:18:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:43,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:18:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:18:52,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31728711] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:18:52,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:18:52,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 36, 34] total 82 [2024-12-02 08:18:52,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336200668] [2024-12-02 08:18:52,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:18:52,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-12-02 08:18:52,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:18:52,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-12-02 08:18:52,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=826, Invalid=5816, Unknown=0, NotChecked=0, Total=6642 [2024-12-02 08:18:52,163 INFO L87 Difference]: Start difference. First operand 540149 states and 723980 transitions. Second operand has 82 states, 82 states have (on average 4.2682926829268295) internal successors, (350), 82 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:24:17,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:17,879 INFO L93 Difference]: Finished difference Result 3190796 states and 4182506 transitions. [2024-12-02 08:24:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1038 states. [2024-12-02 08:24:17,880 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 4.2682926829268295) internal successors, (350), 82 states have internal predecessors, (350), 0 states have call successors, (0), 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 127 [2024-12-02 08:24:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:22,592 INFO L225 Difference]: With dead ends: 3190796 [2024-12-02 08:24:22,593 INFO L226 Difference]: Without dead ends: 2960096 [2024-12-02 08:24:23,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1303 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623944 ImplicationChecksByTransitivity, 304.6s TimeCoverageRelationStatistics Valid=163962, Invalid=1084844, Unknown=0, NotChecked=0, Total=1248806 [2024-12-02 08:24:23,354 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 23969 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 12339 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23969 SdHoareTripleChecker+Valid, 6257 SdHoareTripleChecker+Invalid, 13453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 12339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:23,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23969 Valid, 6257 Invalid, 13453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1114 Valid, 12339 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2024-12-02 08:24:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960096 states. [2024-12-02 08:24:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960096 to 667824. [2024-12-02 08:24:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667824 states, 667823 states have (on average 1.3412236475832668) internal successors, (895700), 667823 states have internal predecessors, (895700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:24:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667824 states to 667824 states and 895700 transitions. [2024-12-02 08:24:43,110 INFO L78 Accepts]: Start accepts. Automaton has 667824 states and 895700 transitions. Word has length 127 [2024-12-02 08:24:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:43,110 INFO L471 AbstractCegarLoop]: Abstraction has 667824 states and 895700 transitions. [2024-12-02 08:24:43,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 4.2682926829268295) internal successors, (350), 82 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:24:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 667824 states and 895700 transitions. [2024-12-02 08:24:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:24:43,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:43,159 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:43,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:24:43,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 08:24:43,361 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:43,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1283798579, now seen corresponding path program 1 times [2024-12-02 08:24:43,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:43,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170255406] [2024-12-02 08:24:43,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:47,487 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:24:47,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170255406] [2024-12-02 08:24:47,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170255406] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:24:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115150495] [2024-12-02 08:24:47,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:47,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:24:47,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:24:47,491 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:24:47,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:24:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:47,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:24:47,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:24:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:24:49,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:24:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:24:51,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115150495] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:24:51,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:24:51,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 12, 12] total 54 [2024-12-02 08:24:51,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593144437] [2024-12-02 08:24:51,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:24:51,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-12-02 08:24:51,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:51,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-12-02 08:24:51,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2709, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 08:24:51,269 INFO L87 Difference]: Start difference. First operand 667824 states and 895700 transitions. Second operand has 54 states, 54 states have (on average 6.537037037037037) internal successors, (353), 54 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:25:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:25:55,052 INFO L93 Difference]: Finished difference Result 2010511 states and 2683191 transitions. [2024-12-02 08:25:55,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 370 states. [2024-12-02 08:25:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 6.537037037037037) internal successors, (353), 54 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-12-02 08:25:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:25:57,337 INFO L225 Difference]: With dead ends: 2010511 [2024-12-02 08:25:57,337 INFO L226 Difference]: Without dead ends: 1601061 [2024-12-02 08:25:57,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 420 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72830 ImplicationChecksByTransitivity, 47.3s TimeCoverageRelationStatistics Valid=14934, Invalid=162728, Unknown=0, NotChecked=0, Total=177662 [2024-12-02 08:25:57,580 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 7584 mSDsluCounter, 8034 mSDsCounter, 0 mSdLazyCounter, 17985 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7584 SdHoareTripleChecker+Valid, 8322 SdHoareTripleChecker+Invalid, 18110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 17985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:25:57,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7584 Valid, 8322 Invalid, 18110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [125 Valid, 17985 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2024-12-02 08:25:58,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601061 states. [2024-12-02 08:26:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601061 to 786275. [2024-12-02 08:26:09,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786275 states, 786274 states have (on average 1.3414331390838308) internal successors, (1054734), 786274 states have internal predecessors, (1054734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:26:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786275 states to 786275 states and 1054734 transitions. [2024-12-02 08:26:10,953 INFO L78 Accepts]: Start accepts. Automaton has 786275 states and 1054734 transitions. Word has length 128 [2024-12-02 08:26:10,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:10,954 INFO L471 AbstractCegarLoop]: Abstraction has 786275 states and 1054734 transitions. [2024-12-02 08:26:10,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 6.537037037037037) internal successors, (353), 54 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:26:10,954 INFO L276 IsEmpty]: Start isEmpty. Operand 786275 states and 1054734 transitions. [2024-12-02 08:26:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 08:26:10,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:10,972 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:26:10,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:26:11,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 08:26:11,172 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:11,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 170096031, now seen corresponding path program 1 times [2024-12-02 08:26:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89212287] [2024-12-02 08:26:11,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:11,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:11,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89212287] [2024-12-02 08:26:11,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89212287] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:26:11,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:26:11,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:26:11,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934219786] [2024-12-02 08:26:11,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:26:11,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:26:11,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:11,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:26:11,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:11,337 INFO L87 Difference]: Start difference. First operand 786275 states and 1054734 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:26:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:26:15,927 INFO L93 Difference]: Finished difference Result 1426078 states and 1907432 transitions. [2024-12-02 08:26:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:26:15,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-12-02 08:26:15,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:26:16,767 INFO L225 Difference]: With dead ends: 1426078 [2024-12-02 08:26:16,767 INFO L226 Difference]: Without dead ends: 639947 [2024-12-02 08:26:16,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:26:16,971 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 66 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:26:16,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:26:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639947 states. [2024-12-02 08:26:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639947 to 621985. [2024-12-02 08:26:23,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621985 states, 621984 states have (on average 1.3181319776714513) internal successors, (819857), 621984 states have internal predecessors, (819857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:26:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621985 states to 621985 states and 819857 transitions. [2024-12-02 08:26:24,852 INFO L78 Accepts]: Start accepts. Automaton has 621985 states and 819857 transitions. Word has length 129 [2024-12-02 08:26:24,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:26:24,853 INFO L471 AbstractCegarLoop]: Abstraction has 621985 states and 819857 transitions. [2024-12-02 08:26:24,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:26:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 621985 states and 819857 transitions. [2024-12-02 08:26:24,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 08:26:24,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:26:24,868 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 08:26:24,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 08:26:24,868 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:26:24,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:26:24,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1014880095, now seen corresponding path program 1 times [2024-12-02 08:26:24,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:26:24,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965191447] [2024-12-02 08:26:24,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:24,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:26:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:26,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:26:26,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965191447] [2024-12-02 08:26:26,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965191447] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:26:26,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884917894] [2024-12-02 08:26:26,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:26:26,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:26:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:26:26,443 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:26:26,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80d4547d-42c5-4b22-a3d4-c0368a4c66ad/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:26:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:26:26,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:26:26,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:26:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:28,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:26:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:26:29,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884917894] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:26:29,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:26:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 15, 14] total 51 [2024-12-02 08:26:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702179414] [2024-12-02 08:26:29,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:26:29,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 08:26:29,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:26:29,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 08:26:29,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=2393, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 08:26:29,353 INFO L87 Difference]: Start difference. First operand 621985 states and 819857 transitions. Second operand has 51 states, 51 states have (on average 6.96078431372549) internal successors, (355), 51 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)