./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '31d5f3a14d915ecc08c5dc9b9c0c33fc37690ec404e8b1546bed720bc4205a6b'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31d5f3a14d915ecc08c5dc9b9c0c33fc37690ec404e8b1546bed720bc4205a6b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:31:58,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:31:58,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:31:58,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:31:58,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:31:58,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:31:58,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:31:58,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:31:58,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:31:58,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:31:58,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:31:58,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:31:58,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:31:58,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:31:58,920 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:31:58,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:31:58,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:31:58,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:31:58,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:31:58,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:31:58,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:31:58,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:31:58,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:31:58,923 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:31:58,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:31:58,923 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 31d5f3a14d915ecc08c5dc9b9c0c33fc37690ec404e8b1546bed720bc4205a6b [2024-11-07 00:31:59,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:31:59,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:31:59,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:31:59,194 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:31:59,194 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:31:59,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-07 00:32:00,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:32:00,785 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:32:00,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-07 00:32:00,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b0929b02/452bdec76b894b71922ffd139d8c628e/FLAG8cade7b7e [2024-11-07 00:32:01,130 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b0929b02/452bdec76b894b71922ffd139d8c628e [2024-11-07 00:32:01,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:32:01,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:32:01,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:32:01,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:32:01,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:32:01,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:01,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2d6543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01, skipping insertion in model container [2024-11-07 00:32:01,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:01,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:32:01,576 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[13904,13917] [2024-11-07 00:32:01,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:32:01,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:32:01,852 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c[13904,13917] [2024-11-07 00:32:01,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:32:01,952 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:32:01,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01 WrapperNode [2024-11-07 00:32:01,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:32:01,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:32:01,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:32:01,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:32:01,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:01,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,037 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1275 [2024-11-07 00:32:02,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:32:02,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:32:02,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:32:02,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:32:02,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,080 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 00:32:02,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:32:02,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:32:02,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:32:02,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:32:02,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (1/1) ... [2024-11-07 00:32:02,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:32:02,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:32:02,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 00:32:02,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 00:32:02,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:32:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:32:02,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:32:02,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:32:02,275 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:32:02,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:32:02,995 INFO L? ?]: Removed 181 outVars from TransFormulas that were not future-live. [2024-11-07 00:32:02,996 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:32:03,015 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:32:03,017 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:32:03,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:32:03 BoogieIcfgContainer [2024-11-07 00:32:03,017 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:32:03,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:32:03,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:32:03,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:32:03,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:32:01" (1/3) ... [2024-11-07 00:32:03,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbb9132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:32:03, skipping insertion in model container [2024-11-07 00:32:03,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:32:01" (2/3) ... [2024-11-07 00:32:03,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbb9132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:32:03, skipping insertion in model container [2024-11-07 00:32:03,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:32:03" (3/3) ... [2024-11-07 00:32:03,026 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.p+lhb-reducer.c [2024-11-07 00:32:03,036 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:32:03,037 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:32:03,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:32:03,100 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;@218f49b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:32:03,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:32:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 334 states have (on average 1.652694610778443) internal successors, (552), 335 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-07 00:32:03,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:03,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:03,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:03,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 507379928, now seen corresponding path program 1 times [2024-11-07 00:32:03,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:03,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386527884] [2024-11-07 00:32:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:03,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:03,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386527884] [2024-11-07 00:32:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386527884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:03,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:03,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707136755] [2024-11-07 00:32:03,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:03,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:32:03,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:03,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:32:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:32:03,630 INFO L87 Difference]: Start difference. First operand has 336 states, 334 states have (on average 1.652694610778443) internal successors, (552), 335 states have internal predecessors, (552), 0 states have call successors, (0), 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 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:03,735 INFO L93 Difference]: Finished difference Result 639 states and 1040 transitions. [2024-11-07 00:32:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:32:03,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-07 00:32:03,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:03,744 INFO L225 Difference]: With dead ends: 639 [2024-11-07 00:32:03,744 INFO L226 Difference]: Without dead ends: 333 [2024-11-07 00:32:03,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:32:03,750 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 0 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:03,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1610 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:03,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-07 00:32:03,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-07 00:32:03,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 332 states have (on average 1.5451807228915662) internal successors, (513), 332 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 513 transitions. [2024-11-07 00:32:03,787 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 513 transitions. Word has length 127 [2024-11-07 00:32:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:03,787 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 513 transitions. [2024-11-07 00:32:03,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 513 transitions. [2024-11-07 00:32:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-07 00:32:03,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:03,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:03,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:32:03,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:03,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:03,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1226582684, now seen corresponding path program 1 times [2024-11-07 00:32:03,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:03,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305880716] [2024-11-07 00:32:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:03,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:03,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305880716] [2024-11-07 00:32:03,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305880716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:03,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:03,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:03,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878707566] [2024-11-07 00:32:03,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:03,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:03,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:03,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:03,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:03,995 INFO L87 Difference]: Start difference. First operand 333 states and 513 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:04,065 INFO L93 Difference]: Finished difference Result 804 states and 1267 transitions. [2024-11-07 00:32:04,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2024-11-07 00:32:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:04,069 INFO L225 Difference]: With dead ends: 804 [2024-11-07 00:32:04,071 INFO L226 Difference]: Without dead ends: 523 [2024-11-07 00:32:04,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,073 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 346 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:04,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 998 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:04,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-07 00:32:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 521. [2024-11-07 00:32:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 520 states have (on average 1.5596153846153846) internal successors, (811), 520 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 811 transitions. [2024-11-07 00:32:04,106 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 811 transitions. Word has length 157 [2024-11-07 00:32:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:04,107 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 811 transitions. [2024-11-07 00:32:04,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 811 transitions. [2024-11-07 00:32:04,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-07 00:32:04,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:04,111 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:04,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:32:04,111 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:04,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:04,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1375467905, now seen corresponding path program 1 times [2024-11-07 00:32:04,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:04,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512412291] [2024-11-07 00:32:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:04,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:04,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512412291] [2024-11-07 00:32:04,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512412291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:04,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:04,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:04,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922042325] [2024-11-07 00:32:04,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:04,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:04,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:04,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:04,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,243 INFO L87 Difference]: Start difference. First operand 521 states and 811 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:04,286 INFO L93 Difference]: Finished difference Result 1322 states and 2090 transitions. [2024-11-07 00:32:04,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:04,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-07 00:32:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:04,290 INFO L225 Difference]: With dead ends: 1322 [2024-11-07 00:32:04,290 INFO L226 Difference]: Without dead ends: 859 [2024-11-07 00:32:04,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,294 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 334 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:04,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 897 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-07 00:32:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 857. [2024-11-07 00:32:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 856 states have (on average 1.566588785046729) internal successors, (1341), 856 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1341 transitions. [2024-11-07 00:32:04,322 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1341 transitions. Word has length 160 [2024-11-07 00:32:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:04,323 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1341 transitions. [2024-11-07 00:32:04,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1341 transitions. [2024-11-07 00:32:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-07 00:32:04,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:04,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:04,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:32:04,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:04,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:04,327 INFO L85 PathProgramCache]: Analyzing trace with hash -401831765, now seen corresponding path program 1 times [2024-11-07 00:32:04,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:04,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738336659] [2024-11-07 00:32:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:04,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:04,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:04,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738336659] [2024-11-07 00:32:04,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738336659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:04,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505609840] [2024-11-07 00:32:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:04,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,482 INFO L87 Difference]: Start difference. First operand 857 states and 1341 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:04,531 INFO L93 Difference]: Finished difference Result 2240 states and 3538 transitions. [2024-11-07 00:32:04,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:04,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-11-07 00:32:04,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:04,538 INFO L225 Difference]: With dead ends: 2240 [2024-11-07 00:32:04,538 INFO L226 Difference]: Without dead ends: 1447 [2024-11-07 00:32:04,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,541 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 320 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:04,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 989 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-07 00:32:04,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1445. [2024-11-07 00:32:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.5657894736842106) internal successors, (2261), 1444 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2261 transitions. [2024-11-07 00:32:04,577 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2261 transitions. Word has length 163 [2024-11-07 00:32:04,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:04,577 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 2261 transitions. [2024-11-07 00:32:04,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2261 transitions. [2024-11-07 00:32:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-07 00:32:04,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:04,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:04,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:32:04,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:04,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:04,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1333810302, now seen corresponding path program 1 times [2024-11-07 00:32:04,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:04,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479455160] [2024-11-07 00:32:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:04,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:04,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479455160] [2024-11-07 00:32:04,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479455160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:04,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:04,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:04,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821437344] [2024-11-07 00:32:04,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:04,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:04,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:04,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:04,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,716 INFO L87 Difference]: Start difference. First operand 1445 states and 2261 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:04,763 INFO L93 Difference]: Finished difference Result 3826 states and 6014 transitions. [2024-11-07 00:32:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:04,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-07 00:32:04,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:04,771 INFO L225 Difference]: With dead ends: 3826 [2024-11-07 00:32:04,771 INFO L226 Difference]: Without dead ends: 2451 [2024-11-07 00:32:04,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:04,776 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 308 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:04,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 857 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2024-11-07 00:32:04,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 2449. [2024-11-07 00:32:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2448 states have (on average 1.5575980392156863) internal successors, (3813), 2448 states have internal predecessors, (3813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3813 transitions. [2024-11-07 00:32:04,829 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3813 transitions. Word has length 166 [2024-11-07 00:32:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:04,830 INFO L471 AbstractCegarLoop]: Abstraction has 2449 states and 3813 transitions. [2024-11-07 00:32:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3813 transitions. [2024-11-07 00:32:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-07 00:32:04,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:04,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:04,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:32:04,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:04,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash -109197312, now seen corresponding path program 1 times [2024-11-07 00:32:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:04,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865976103] [2024-11-07 00:32:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:05,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:05,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865976103] [2024-11-07 00:32:05,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865976103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:05,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:05,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:05,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529271412] [2024-11-07 00:32:05,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:05,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:05,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:05,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:05,043 INFO L87 Difference]: Start difference. First operand 2449 states and 3813 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:05,776 INFO L93 Difference]: Finished difference Result 22976 states and 35818 transitions. [2024-11-07 00:32:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 00:32:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-07 00:32:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:05,841 INFO L225 Difference]: With dead ends: 22976 [2024-11-07 00:32:05,841 INFO L226 Difference]: Without dead ends: 20603 [2024-11-07 00:32:05,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:05,849 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 3286 mSDsluCounter, 7225 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3286 SdHoareTripleChecker+Valid, 8879 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:05,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3286 Valid, 8879 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:32:05,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2024-11-07 00:32:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 4851. [2024-11-07 00:32:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 4850 states have (on average 1.534639175257732) internal successors, (7443), 4850 states have internal predecessors, (7443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 7443 transitions. [2024-11-07 00:32:06,131 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 7443 transitions. Word has length 169 [2024-11-07 00:32:06,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:06,132 INFO L471 AbstractCegarLoop]: Abstraction has 4851 states and 7443 transitions. [2024-11-07 00:32:06,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 7443 transitions. [2024-11-07 00:32:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-07 00:32:06,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:06,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:06,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:32:06,140 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:06,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash -685585935, now seen corresponding path program 1 times [2024-11-07 00:32:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6893757] [2024-11-07 00:32:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:06,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:06,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:06,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6893757] [2024-11-07 00:32:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6893757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:06,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352896863] [2024-11-07 00:32:06,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:06,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:06,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:06,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:06,214 INFO L87 Difference]: Start difference. First operand 4851 states and 7443 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:06,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:06,291 INFO L93 Difference]: Finished difference Result 13321 states and 20415 transitions. [2024-11-07 00:32:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-07 00:32:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:06,305 INFO L225 Difference]: With dead ends: 13321 [2024-11-07 00:32:06,305 INFO L226 Difference]: Without dead ends: 8510 [2024-11-07 00:32:06,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:06,313 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 337 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:06,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1172 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:06,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8510 states. [2024-11-07 00:32:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8510 to 8508. [2024-11-07 00:32:06,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8508 states, 8507 states have (on average 1.5183966145527212) internal successors, (12917), 8507 states have internal predecessors, (12917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8508 states to 8508 states and 12917 transitions. [2024-11-07 00:32:06,494 INFO L78 Accepts]: Start accepts. Automaton has 8508 states and 12917 transitions. Word has length 172 [2024-11-07 00:32:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:06,494 INFO L471 AbstractCegarLoop]: Abstraction has 8508 states and 12917 transitions. [2024-11-07 00:32:06,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:06,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8508 states and 12917 transitions. [2024-11-07 00:32:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:32:06,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:06,508 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:06,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:32:06,508 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:06,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash 443804160, now seen corresponding path program 1 times [2024-11-07 00:32:06,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:06,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399185797] [2024-11-07 00:32:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:06,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:06,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399185797] [2024-11-07 00:32:06,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399185797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:06,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:06,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:06,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681522444] [2024-11-07 00:32:06,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:06,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:06,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:06,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:06,605 INFO L87 Difference]: Start difference. First operand 8508 states and 12917 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:06,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:06,727 INFO L93 Difference]: Finished difference Result 20430 states and 30991 transitions. [2024-11-07 00:32:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:06,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:32:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:06,770 INFO L225 Difference]: With dead ends: 20430 [2024-11-07 00:32:06,770 INFO L226 Difference]: Without dead ends: 11990 [2024-11-07 00:32:06,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:06,797 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 352 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:06,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 794 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:32:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11990 states. [2024-11-07 00:32:07,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11990 to 11924. [2024-11-07 00:32:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11924 states, 11923 states have (on average 1.4929128575023065) internal successors, (17800), 11923 states have internal predecessors, (17800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11924 states to 11924 states and 17800 transitions. [2024-11-07 00:32:07,272 INFO L78 Accepts]: Start accepts. Automaton has 11924 states and 17800 transitions. Word has length 173 [2024-11-07 00:32:07,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:07,273 INFO L471 AbstractCegarLoop]: Abstraction has 11924 states and 17800 transitions. [2024-11-07 00:32:07,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 11924 states and 17800 transitions. [2024-11-07 00:32:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-07 00:32:07,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:07,307 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:07,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:32:07,308 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:07,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1404207551, now seen corresponding path program 1 times [2024-11-07 00:32:07,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:07,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712822144] [2024-11-07 00:32:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:07,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:07,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:07,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712822144] [2024-11-07 00:32:07,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712822144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:07,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:07,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929803109] [2024-11-07 00:32:07,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:07,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:07,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:07,893 INFO L87 Difference]: Start difference. First operand 11924 states and 17800 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:08,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:08,263 INFO L93 Difference]: Finished difference Result 23781 states and 35521 transitions. [2024-11-07 00:32:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-07 00:32:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:08,296 INFO L225 Difference]: With dead ends: 23781 [2024-11-07 00:32:08,296 INFO L226 Difference]: Without dead ends: 11926 [2024-11-07 00:32:08,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:32:08,312 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 754 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:08,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 2044 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:32:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11926 states. [2024-11-07 00:32:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11926 to 11924. [2024-11-07 00:32:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11924 states, 11923 states have (on average 1.478067600436132) internal successors, (17623), 11923 states have internal predecessors, (17623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11924 states to 11924 states and 17623 transitions. [2024-11-07 00:32:08,543 INFO L78 Accepts]: Start accepts. Automaton has 11924 states and 17623 transitions. Word has length 173 [2024-11-07 00:32:08,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:08,545 INFO L471 AbstractCegarLoop]: Abstraction has 11924 states and 17623 transitions. [2024-11-07 00:32:08,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 11924 states and 17623 transitions. [2024-11-07 00:32:08,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 00:32:08,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:08,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:08,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:32:08,565 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:08,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:08,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1620734737, now seen corresponding path program 1 times [2024-11-07 00:32:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714817914] [2024-11-07 00:32:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:08,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:08,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714817914] [2024-11-07 00:32:08,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714817914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:08,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:08,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:08,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216504588] [2024-11-07 00:32:08,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:08,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:08,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:08,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:08,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:08,872 INFO L87 Difference]: Start difference. First operand 11924 states and 17623 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:09,315 INFO L93 Difference]: Finished difference Result 60589 states and 89352 transitions. [2024-11-07 00:32:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:09,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 00:32:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:09,408 INFO L225 Difference]: With dead ends: 60589 [2024-11-07 00:32:09,408 INFO L226 Difference]: Without dead ends: 52435 [2024-11-07 00:32:09,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:09,444 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 2612 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:09,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2612 Valid, 3610 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:32:09,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52435 states. [2024-11-07 00:32:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52435 to 22673. [2024-11-07 00:32:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22673 states, 22672 states have (on average 1.4693895553987297) internal successors, (33314), 22672 states have internal predecessors, (33314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22673 states to 22673 states and 33314 transitions. [2024-11-07 00:32:10,267 INFO L78 Accepts]: Start accepts. Automaton has 22673 states and 33314 transitions. Word has length 174 [2024-11-07 00:32:10,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:10,267 INFO L471 AbstractCegarLoop]: Abstraction has 22673 states and 33314 transitions. [2024-11-07 00:32:10,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22673 states and 33314 transitions. [2024-11-07 00:32:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 00:32:10,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:10,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:10,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:32:10,329 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:10,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash -490509957, now seen corresponding path program 1 times [2024-11-07 00:32:10,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:10,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657816024] [2024-11-07 00:32:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:10,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:10,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:10,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657816024] [2024-11-07 00:32:10,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657816024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:10,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:10,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:10,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268475369] [2024-11-07 00:32:10,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:10,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:10,830 INFO L87 Difference]: Start difference. First operand 22673 states and 33314 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:11,902 INFO L93 Difference]: Finished difference Result 70007 states and 103072 transitions. [2024-11-07 00:32:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:11,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 00:32:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:12,147 INFO L225 Difference]: With dead ends: 70007 [2024-11-07 00:32:12,147 INFO L226 Difference]: Without dead ends: 62285 [2024-11-07 00:32:12,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:12,211 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 2615 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 3730 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:12,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2615 Valid, 3730 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:32:12,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62285 states. [2024-11-07 00:32:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62285 to 36813. [2024-11-07 00:32:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36813 states, 36812 states have (on average 1.4612354666956426) internal successors, (53791), 36812 states have internal predecessors, (53791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36813 states to 36813 states and 53791 transitions. [2024-11-07 00:32:14,214 INFO L78 Accepts]: Start accepts. Automaton has 36813 states and 53791 transitions. Word has length 174 [2024-11-07 00:32:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:14,214 INFO L471 AbstractCegarLoop]: Abstraction has 36813 states and 53791 transitions. [2024-11-07 00:32:14,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 36813 states and 53791 transitions. [2024-11-07 00:32:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 00:32:14,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:14,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:14,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:32:14,311 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:14,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:14,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1276981041, now seen corresponding path program 1 times [2024-11-07 00:32:14,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:14,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212334154] [2024-11-07 00:32:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:14,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:14,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212334154] [2024-11-07 00:32:14,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212334154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:14,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:14,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:14,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157841078] [2024-11-07 00:32:14,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:14,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:14,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:14,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:14,954 INFO L87 Difference]: Start difference. First operand 36813 states and 53791 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:15,920 INFO L93 Difference]: Finished difference Result 78927 states and 116048 transitions. [2024-11-07 00:32:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:15,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 00:32:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:16,164 INFO L225 Difference]: With dead ends: 78927 [2024-11-07 00:32:16,165 INFO L226 Difference]: Without dead ends: 71061 [2024-11-07 00:32:16,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:16,217 INFO L432 NwaCegarLoop]: 1167 mSDtfsCounter, 2431 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:16,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 3946 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:32:16,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71061 states. [2024-11-07 00:32:17,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71061 to 46464. [2024-11-07 00:32:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46464 states, 46463 states have (on average 1.4605384929944256) internal successors, (67861), 46463 states have internal predecessors, (67861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46464 states to 46464 states and 67861 transitions. [2024-11-07 00:32:17,710 INFO L78 Accepts]: Start accepts. Automaton has 46464 states and 67861 transitions. Word has length 174 [2024-11-07 00:32:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:17,710 INFO L471 AbstractCegarLoop]: Abstraction has 46464 states and 67861 transitions. [2024-11-07 00:32:17,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:17,711 INFO L276 IsEmpty]: Start isEmpty. Operand 46464 states and 67861 transitions. [2024-11-07 00:32:17,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-07 00:32:17,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:17,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:17,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:32:17,758 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:17,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash 815173252, now seen corresponding path program 1 times [2024-11-07 00:32:17,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:17,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747329186] [2024-11-07 00:32:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:17,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:18,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:18,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747329186] [2024-11-07 00:32:18,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747329186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:18,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:18,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:18,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194454691] [2024-11-07 00:32:18,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:18,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:18,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:18,027 INFO L87 Difference]: Start difference. First operand 46464 states and 67861 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:18,792 INFO L93 Difference]: Finished difference Result 88515 states and 130020 transitions. [2024-11-07 00:32:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:18,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-07 00:32:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:19,112 INFO L225 Difference]: With dead ends: 88515 [2024-11-07 00:32:19,113 INFO L226 Difference]: Without dead ends: 80505 [2024-11-07 00:32:19,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:19,170 INFO L432 NwaCegarLoop]: 1394 mSDtfsCounter, 2524 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2524 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:19,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2524 Valid, 4530 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:32:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80505 states. [2024-11-07 00:32:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80505 to 56286. [2024-11-07 00:32:20,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56286 states, 56285 states have (on average 1.4602824908945544) internal successors, (82192), 56285 states have internal predecessors, (82192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56286 states to 56286 states and 82192 transitions. [2024-11-07 00:32:20,676 INFO L78 Accepts]: Start accepts. Automaton has 56286 states and 82192 transitions. Word has length 174 [2024-11-07 00:32:20,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:20,676 INFO L471 AbstractCegarLoop]: Abstraction has 56286 states and 82192 transitions. [2024-11-07 00:32:20,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 7 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:20,676 INFO L276 IsEmpty]: Start isEmpty. Operand 56286 states and 82192 transitions. [2024-11-07 00:32:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-07 00:32:20,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:20,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:20,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:32:20,744 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:20,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash 773645085, now seen corresponding path program 1 times [2024-11-07 00:32:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:20,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337413790] [2024-11-07 00:32:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:20,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:20,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:20,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337413790] [2024-11-07 00:32:20,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337413790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:20,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:20,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:32:20,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91765020] [2024-11-07 00:32:20,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:20,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:32:20,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:20,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:32:20,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:20,965 INFO L87 Difference]: Start difference. First operand 56286 states and 82192 transitions. Second operand has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:21,776 INFO L93 Difference]: Finished difference Result 93088 states and 136880 transitions. [2024-11-07 00:32:21,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:32:21,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2024-11-07 00:32:21,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:21,885 INFO L225 Difference]: With dead ends: 93088 [2024-11-07 00:32:21,885 INFO L226 Difference]: Without dead ends: 87454 [2024-11-07 00:32:21,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:32:21,914 INFO L432 NwaCegarLoop]: 1335 mSDtfsCounter, 2676 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:21,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 4910 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:32:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87454 states. [2024-11-07 00:32:23,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87454 to 63235. [2024-11-07 00:32:23,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63235 states, 63234 states have (on average 1.4628206344687984) internal successors, (92500), 63234 states have internal predecessors, (92500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63235 states to 63235 states and 92500 transitions. [2024-11-07 00:32:23,193 INFO L78 Accepts]: Start accepts. Automaton has 63235 states and 92500 transitions. Word has length 175 [2024-11-07 00:32:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:23,194 INFO L471 AbstractCegarLoop]: Abstraction has 63235 states and 92500 transitions. [2024-11-07 00:32:23,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 63235 states and 92500 transitions. [2024-11-07 00:32:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 00:32:23,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:23,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:23,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:32:23,272 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:23,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash -153189903, now seen corresponding path program 1 times [2024-11-07 00:32:23,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:23,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840075263] [2024-11-07 00:32:23,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:23,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:23,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:23,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:23,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840075263] [2024-11-07 00:32:23,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840075263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:23,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:23,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:23,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114331750] [2024-11-07 00:32:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:23,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:23,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:23,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:23,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:23,371 INFO L87 Difference]: Start difference. First operand 63235 states and 92500 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:24,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:24,200 INFO L93 Difference]: Finished difference Result 182969 states and 267395 transitions. [2024-11-07 00:32:24,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:24,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-07 00:32:24,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:24,347 INFO L225 Difference]: With dead ends: 182969 [2024-11-07 00:32:24,347 INFO L226 Difference]: Without dead ends: 125560 [2024-11-07 00:32:24,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:24,415 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 324 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:24,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 569 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:32:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125560 states. [2024-11-07 00:32:26,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125560 to 125558. [2024-11-07 00:32:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125558 states, 125557 states have (on average 1.4525116082735332) internal successors, (182373), 125557 states have internal predecessors, (182373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125558 states to 125558 states and 182373 transitions. [2024-11-07 00:32:26,556 INFO L78 Accepts]: Start accepts. Automaton has 125558 states and 182373 transitions. Word has length 176 [2024-11-07 00:32:26,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:26,556 INFO L471 AbstractCegarLoop]: Abstraction has 125558 states and 182373 transitions. [2024-11-07 00:32:26,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 125558 states and 182373 transitions. [2024-11-07 00:32:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 00:32:26,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:26,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:26,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:32:26,727 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:26,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash -953068783, now seen corresponding path program 1 times [2024-11-07 00:32:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:26,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641580609] [2024-11-07 00:32:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:26,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:26,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:26,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:26,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641580609] [2024-11-07 00:32:26,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641580609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:26,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:26,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:26,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500670522] [2024-11-07 00:32:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:26,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:26,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:26,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:26,943 INFO L87 Difference]: Start difference. First operand 125558 states and 182373 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:28,993 INFO L93 Difference]: Finished difference Result 331581 states and 482950 transitions. [2024-11-07 00:32:28,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:28,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-07 00:32:28,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:29,266 INFO L225 Difference]: With dead ends: 331581 [2024-11-07 00:32:29,266 INFO L226 Difference]: Without dead ends: 206061 [2024-11-07 00:32:29,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:29,395 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 2031 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:29,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 450 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:32:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206061 states. [2024-11-07 00:32:32,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206061 to 206059. [2024-11-07 00:32:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206059 states, 206058 states have (on average 1.4490531792019723) internal successors, (298589), 206058 states have internal predecessors, (298589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206059 states to 206059 states and 298589 transitions. [2024-11-07 00:32:33,602 INFO L78 Accepts]: Start accepts. Automaton has 206059 states and 298589 transitions. Word has length 176 [2024-11-07 00:32:33,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:33,602 INFO L471 AbstractCegarLoop]: Abstraction has 206059 states and 298589 transitions. [2024-11-07 00:32:33,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:33,603 INFO L276 IsEmpty]: Start isEmpty. Operand 206059 states and 298589 transitions. [2024-11-07 00:32:33,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 00:32:33,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:33,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:33,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:32:33,758 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:33,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1357300106, now seen corresponding path program 1 times [2024-11-07 00:32:33,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:33,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541581164] [2024-11-07 00:32:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:33,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:33,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:33,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541581164] [2024-11-07 00:32:33,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541581164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:33,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:33,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959062342] [2024-11-07 00:32:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:33,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:33,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:33,874 INFO L87 Difference]: Start difference. First operand 206059 states and 298589 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:35,752 INFO L93 Difference]: Finished difference Result 412050 states and 597099 transitions. [2024-11-07 00:32:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:35,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-07 00:32:35,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:36,116 INFO L225 Difference]: With dead ends: 412050 [2024-11-07 00:32:36,116 INFO L226 Difference]: Without dead ends: 206059 [2024-11-07 00:32:36,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:36,262 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1265 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:36,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 287 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:32:36,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206059 states. [2024-11-07 00:32:40,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206059 to 206059. [2024-11-07 00:32:40,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206059 states, 206058 states have (on average 1.434727115666463) internal successors, (295637), 206058 states have internal predecessors, (295637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206059 states to 206059 states and 295637 transitions. [2024-11-07 00:32:41,209 INFO L78 Accepts]: Start accepts. Automaton has 206059 states and 295637 transitions. Word has length 176 [2024-11-07 00:32:41,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:41,209 INFO L471 AbstractCegarLoop]: Abstraction has 206059 states and 295637 transitions. [2024-11-07 00:32:41,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:41,210 INFO L276 IsEmpty]: Start isEmpty. Operand 206059 states and 295637 transitions. [2024-11-07 00:32:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 00:32:41,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:41,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:41,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:32:41,450 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:41,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:41,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1621554053, now seen corresponding path program 1 times [2024-11-07 00:32:41,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:41,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718612209] [2024-11-07 00:32:41,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:41,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:42,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:42,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718612209] [2024-11-07 00:32:42,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718612209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:42,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:42,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:42,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670868816] [2024-11-07 00:32:42,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:42,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:42,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:42,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:42,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:42,127 INFO L87 Difference]: Start difference. First operand 206059 states and 295637 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:43,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:43,072 INFO L93 Difference]: Finished difference Result 293053 states and 420989 transitions. [2024-11-07 00:32:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:43,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-07 00:32:43,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:43,211 INFO L225 Difference]: With dead ends: 293053 [2024-11-07 00:32:43,211 INFO L226 Difference]: Without dead ends: 103761 [2024-11-07 00:32:43,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:43,344 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1263 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:43,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 279 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:32:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103761 states. [2024-11-07 00:32:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103761 to 103761. [2024-11-07 00:32:45,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103761 states, 103760 states have (on average 1.4316885119506553) internal successors, (148552), 103760 states have internal predecessors, (148552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103761 states to 103761 states and 148552 transitions. [2024-11-07 00:32:45,727 INFO L78 Accepts]: Start accepts. Automaton has 103761 states and 148552 transitions. Word has length 176 [2024-11-07 00:32:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:45,727 INFO L471 AbstractCegarLoop]: Abstraction has 103761 states and 148552 transitions. [2024-11-07 00:32:45,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 103761 states and 148552 transitions. [2024-11-07 00:32:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 00:32:45,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:45,824 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:45,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:32:45,825 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:45,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1923991146, now seen corresponding path program 1 times [2024-11-07 00:32:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:45,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862814284] [2024-11-07 00:32:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:45,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:45,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862814284] [2024-11-07 00:32:45,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862814284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:45,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:45,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:32:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911732523] [2024-11-07 00:32:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:45,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:32:45,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:45,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:32:45,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:32:45,938 INFO L87 Difference]: Start difference. First operand 103761 states and 148552 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:47,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:47,046 INFO L93 Difference]: Finished difference Result 207472 states and 297049 transitions. [2024-11-07 00:32:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:32:47,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-07 00:32:47,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:47,175 INFO L225 Difference]: With dead ends: 207472 [2024-11-07 00:32:47,175 INFO L226 Difference]: Without dead ends: 103761 [2024-11-07 00:32:47,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:32:47,225 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1261 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:47,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 271 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:32:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103761 states. [2024-11-07 00:32:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103761 to 103761. [2024-11-07 00:32:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103761 states, 103760 states have (on average 1.4185331534309946) internal successors, (147187), 103760 states have internal predecessors, (147187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103761 states to 103761 states and 147187 transitions. [2024-11-07 00:32:48,741 INFO L78 Accepts]: Start accepts. Automaton has 103761 states and 147187 transitions. Word has length 176 [2024-11-07 00:32:48,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:48,741 INFO L471 AbstractCegarLoop]: Abstraction has 103761 states and 147187 transitions. [2024-11-07 00:32:48,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:48,742 INFO L276 IsEmpty]: Start isEmpty. Operand 103761 states and 147187 transitions. [2024-11-07 00:32:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-07 00:32:48,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:48,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:48,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:32:48,828 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:48,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash 637561307, now seen corresponding path program 1 times [2024-11-07 00:32:48,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:48,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750603549] [2024-11-07 00:32:48,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:48,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:48,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750603549] [2024-11-07 00:32:48,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750603549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:48,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:48,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:48,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842980168] [2024-11-07 00:32:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:48,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:48,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:48,922 INFO L87 Difference]: Start difference. First operand 103761 states and 147187 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:49,243 INFO L93 Difference]: Finished difference Result 149125 states and 212845 transitions. [2024-11-07 00:32:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:49,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-07 00:32:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:49,319 INFO L225 Difference]: With dead ends: 149125 [2024-11-07 00:32:49,319 INFO L226 Difference]: Without dead ends: 61692 [2024-11-07 00:32:49,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:49,380 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 189 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:49,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 691 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61692 states. [2024-11-07 00:32:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61692 to 61690. [2024-11-07 00:32:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61690 states, 61689 states have (on average 1.4324271750230997) internal successors, (88365), 61689 states have internal predecessors, (88365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:50,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61690 states to 61690 states and 88365 transitions. [2024-11-07 00:32:50,998 INFO L78 Accepts]: Start accepts. Automaton has 61690 states and 88365 transitions. Word has length 176 [2024-11-07 00:32:50,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:50,998 INFO L471 AbstractCegarLoop]: Abstraction has 61690 states and 88365 transitions. [2024-11-07 00:32:50,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:50,999 INFO L276 IsEmpty]: Start isEmpty. Operand 61690 states and 88365 transitions. [2024-11-07 00:32:51,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 00:32:51,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:51,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:51,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:32:51,038 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:51,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:51,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1965301183, now seen corresponding path program 1 times [2024-11-07 00:32:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:51,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551088416] [2024-11-07 00:32:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:51,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:51,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:51,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551088416] [2024-11-07 00:32:51,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551088416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:51,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:51,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833119492] [2024-11-07 00:32:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:51,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:51,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:51,344 INFO L87 Difference]: Start difference. First operand 61690 states and 88365 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:51,510 INFO L93 Difference]: Finished difference Result 88136 states and 126519 transitions. [2024-11-07 00:32:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-11-07 00:32:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:51,549 INFO L225 Difference]: With dead ends: 88136 [2024-11-07 00:32:51,549 INFO L226 Difference]: Without dead ends: 31604 [2024-11-07 00:32:51,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:51,585 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 185 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:51,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 656 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:51,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31604 states. [2024-11-07 00:32:51,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31604 to 31602. [2024-11-07 00:32:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31602 states, 31601 states have (on average 1.4225182747381413) internal successors, (44953), 31601 states have internal predecessors, (44953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31602 states to 31602 states and 44953 transitions. [2024-11-07 00:32:51,978 INFO L78 Accepts]: Start accepts. Automaton has 31602 states and 44953 transitions. Word has length 178 [2024-11-07 00:32:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:51,978 INFO L471 AbstractCegarLoop]: Abstraction has 31602 states and 44953 transitions. [2024-11-07 00:32:51,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand 31602 states and 44953 transitions. [2024-11-07 00:32:51,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 00:32:51,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:51,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:51,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:32:51,997 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:51,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash -2024285505, now seen corresponding path program 1 times [2024-11-07 00:32:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325487665] [2024-11-07 00:32:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:52,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:52,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325487665] [2024-11-07 00:32:52,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325487665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:52,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:52,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:52,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750882715] [2024-11-07 00:32:52,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:52,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:52,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:52,152 INFO L87 Difference]: Start difference. First operand 31602 states and 44953 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:52,239 INFO L93 Difference]: Finished difference Result 44094 states and 62953 transitions. [2024-11-07 00:32:52,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:52,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-11-07 00:32:52,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:52,256 INFO L225 Difference]: With dead ends: 44094 [2024-11-07 00:32:52,257 INFO L226 Difference]: Without dead ends: 16327 [2024-11-07 00:32:52,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:52,275 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 183 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:52,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 620 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:52,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16327 states. [2024-11-07 00:32:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16327 to 16325. [2024-11-07 00:32:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16325 states, 16324 states have (on average 1.4109286939475618) internal successors, (23032), 16324 states have internal predecessors, (23032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16325 states to 16325 states and 23032 transitions. [2024-11-07 00:32:52,530 INFO L78 Accepts]: Start accepts. Automaton has 16325 states and 23032 transitions. Word has length 178 [2024-11-07 00:32:52,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:52,530 INFO L471 AbstractCegarLoop]: Abstraction has 16325 states and 23032 transitions. [2024-11-07 00:32:52,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 16325 states and 23032 transitions. [2024-11-07 00:32:52,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 00:32:52,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:52,548 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:52,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:32:52,549 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:52,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash -168442411, now seen corresponding path program 1 times [2024-11-07 00:32:52,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:52,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609236076] [2024-11-07 00:32:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:52,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:52,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:52,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609236076] [2024-11-07 00:32:52,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609236076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:52,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:52,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:52,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860712842] [2024-11-07 00:32:52,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:52,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:52,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:52,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:52,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:52,728 INFO L87 Difference]: Start difference. First operand 16325 states and 23032 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:52,786 INFO L93 Difference]: Finished difference Result 23319 states and 32958 transitions. [2024-11-07 00:32:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:52,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-11-07 00:32:52,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:52,795 INFO L225 Difference]: With dead ends: 23319 [2024-11-07 00:32:52,795 INFO L226 Difference]: Without dead ends: 8358 [2024-11-07 00:32:52,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:52,805 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 146 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:52,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 570 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8358 states. [2024-11-07 00:32:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8358 to 8356. [2024-11-07 00:32:52,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8356 states, 8355 states have (on average 1.397965290245362) internal successors, (11680), 8355 states have internal predecessors, (11680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8356 states to 8356 states and 11680 transitions. [2024-11-07 00:32:52,890 INFO L78 Accepts]: Start accepts. Automaton has 8356 states and 11680 transitions. Word has length 178 [2024-11-07 00:32:52,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:52,891 INFO L471 AbstractCegarLoop]: Abstraction has 8356 states and 11680 transitions. [2024-11-07 00:32:52,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:52,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8356 states and 11680 transitions. [2024-11-07 00:32:52,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 00:32:52,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:52,896 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:52,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:32:52,897 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:52,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1887439362, now seen corresponding path program 1 times [2024-11-07 00:32:52,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:52,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304562410] [2024-11-07 00:32:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:52,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:53,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:53,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304562410] [2024-11-07 00:32:53,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304562410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:53,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:53,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:32:53,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366933780] [2024-11-07 00:32:53,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:53,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:53,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:53,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:53,418 INFO L87 Difference]: Start difference. First operand 8356 states and 11680 transitions. Second operand has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 13 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:54,161 INFO L93 Difference]: Finished difference Result 22191 states and 31037 transitions. [2024-11-07 00:32:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 00:32:54,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 13 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2024-11-07 00:32:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:54,178 INFO L225 Difference]: With dead ends: 22191 [2024-11-07 00:32:54,178 INFO L226 Difference]: Without dead ends: 16549 [2024-11-07 00:32:54,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2024-11-07 00:32:54,185 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1482 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:54,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1557 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:32:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16549 states. [2024-11-07 00:32:54,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16549 to 10196. [2024-11-07 00:32:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10196 states, 10195 states have (on average 1.3814615007356548) internal successors, (14084), 10195 states have internal predecessors, (14084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10196 states to 10196 states and 14084 transitions. [2024-11-07 00:32:54,320 INFO L78 Accepts]: Start accepts. Automaton has 10196 states and 14084 transitions. Word has length 178 [2024-11-07 00:32:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:54,321 INFO L471 AbstractCegarLoop]: Abstraction has 10196 states and 14084 transitions. [2024-11-07 00:32:54,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 13 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10196 states and 14084 transitions. [2024-11-07 00:32:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 00:32:54,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:54,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:54,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 00:32:54,328 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:54,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:54,329 INFO L85 PathProgramCache]: Analyzing trace with hash 394045192, now seen corresponding path program 1 times [2024-11-07 00:32:54,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:54,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632430728] [2024-11-07 00:32:54,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:54,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:54,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:54,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632430728] [2024-11-07 00:32:54,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632430728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:54,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:54,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:32:54,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255414409] [2024-11-07 00:32:54,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:54,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:54,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:54,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:54,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:54,753 INFO L87 Difference]: Start difference. First operand 10196 states and 14084 transitions. Second operand has 14 states, 14 states have (on average 12.785714285714286) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:55,767 INFO L93 Difference]: Finished difference Result 27109 states and 37342 transitions. [2024-11-07 00:32:55,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 00:32:55,767 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.785714285714286) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-07 00:32:55,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:55,786 INFO L225 Difference]: With dead ends: 27109 [2024-11-07 00:32:55,786 INFO L226 Difference]: Without dead ends: 20041 [2024-11-07 00:32:55,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2024-11-07 00:32:55,796 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1854 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:55,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 1815 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:32:55,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20041 states. [2024-11-07 00:32:55,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20041 to 10312. [2024-11-07 00:32:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10312 states, 10311 states have (on average 1.3811463485597906) internal successors, (14241), 10311 states have internal predecessors, (14241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10312 states to 10312 states and 14241 transitions. [2024-11-07 00:32:55,973 INFO L78 Accepts]: Start accepts. Automaton has 10312 states and 14241 transitions. Word has length 179 [2024-11-07 00:32:55,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:55,973 INFO L471 AbstractCegarLoop]: Abstraction has 10312 states and 14241 transitions. [2024-11-07 00:32:55,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.785714285714286) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 10312 states and 14241 transitions. [2024-11-07 00:32:55,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 00:32:55,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:55,981 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:55,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 00:32:55,981 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:55,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:55,982 INFO L85 PathProgramCache]: Analyzing trace with hash 304220718, now seen corresponding path program 1 times [2024-11-07 00:32:55,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:55,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931642037] [2024-11-07 00:32:55,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:55,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:56,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:56,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931642037] [2024-11-07 00:32:56,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931642037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:56,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:56,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:32:56,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692297757] [2024-11-07 00:32:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:56,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:32:56,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:32:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:56,123 INFO L87 Difference]: Start difference. First operand 10312 states and 14241 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:56,160 INFO L93 Difference]: Finished difference Result 13976 states and 19382 transitions. [2024-11-07 00:32:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:32:56,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-07 00:32:56,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:56,165 INFO L225 Difference]: With dead ends: 13976 [2024-11-07 00:32:56,165 INFO L226 Difference]: Without dead ends: 5437 [2024-11-07 00:32:56,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:32:56,171 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 137 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:56,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 522 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:32:56,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-11-07 00:32:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5435. [2024-11-07 00:32:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 1.3627162311372838) internal successors, (7405), 5434 states have internal predecessors, (7405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 7405 transitions. [2024-11-07 00:32:56,229 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 7405 transitions. Word has length 179 [2024-11-07 00:32:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:56,229 INFO L471 AbstractCegarLoop]: Abstraction has 5435 states and 7405 transitions. [2024-11-07 00:32:56,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 7405 transitions. [2024-11-07 00:32:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-07 00:32:56,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:56,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:56,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 00:32:56,234 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:56,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:56,235 INFO L85 PathProgramCache]: Analyzing trace with hash 659619266, now seen corresponding path program 1 times [2024-11-07 00:32:56,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:56,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295730879] [2024-11-07 00:32:56,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:56,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:56,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:56,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295730879] [2024-11-07 00:32:56,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295730879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:56,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:56,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:32:56,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543202190] [2024-11-07 00:32:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:56,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:56,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:56,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:56,642 INFO L87 Difference]: Start difference. First operand 5435 states and 7405 transitions. Second operand has 14 states, 14 states have (on average 12.785714285714286) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:57,469 INFO L93 Difference]: Finished difference Result 11910 states and 16207 transitions. [2024-11-07 00:32:57,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:32:57,470 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.785714285714286) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-07 00:32:57,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:57,480 INFO L225 Difference]: With dead ends: 11910 [2024-11-07 00:32:57,480 INFO L226 Difference]: Without dead ends: 9178 [2024-11-07 00:32:57,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:32:57,485 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 1664 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:57,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 2032 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:32:57,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9178 states. [2024-11-07 00:32:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9178 to 6769. [2024-11-07 00:32:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6769 states, 6768 states have (on average 1.3472222222222223) internal successors, (9118), 6768 states have internal predecessors, (9118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6769 states to 6769 states and 9118 transitions. [2024-11-07 00:32:57,567 INFO L78 Accepts]: Start accepts. Automaton has 6769 states and 9118 transitions. Word has length 179 [2024-11-07 00:32:57,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:57,567 INFO L471 AbstractCegarLoop]: Abstraction has 6769 states and 9118 transitions. [2024-11-07 00:32:57,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.785714285714286) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:57,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6769 states and 9118 transitions. [2024-11-07 00:32:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-07 00:32:57,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:57,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:57,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 00:32:57,574 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:57,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash -100017947, now seen corresponding path program 1 times [2024-11-07 00:32:57,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:57,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500627632] [2024-11-07 00:32:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:57,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:58,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:58,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500627632] [2024-11-07 00:32:58,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500627632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:58,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:58,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:32:58,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414269335] [2024-11-07 00:32:58,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:58,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:58,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:58,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:58,097 INFO L87 Difference]: Start difference. First operand 6769 states and 9118 transitions. Second operand has 14 states, 14 states have (on average 12.857142857142858) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:58,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:32:58,800 INFO L93 Difference]: Finished difference Result 17560 states and 23651 transitions. [2024-11-07 00:32:58,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:32:58,801 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.857142857142858) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2024-11-07 00:32:58,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:32:58,814 INFO L225 Difference]: With dead ends: 17560 [2024-11-07 00:32:58,814 INFO L226 Difference]: Without dead ends: 15140 [2024-11-07 00:32:58,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:32:58,820 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 1798 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1798 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:32:58,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1798 Valid, 1858 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:32:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15140 states. [2024-11-07 00:32:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15140 to 10429. [2024-11-07 00:32:58,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10429 states, 10428 states have (on average 1.333812811660913) internal successors, (13909), 10428 states have internal predecessors, (13909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10429 states to 10429 states and 13909 transitions. [2024-11-07 00:32:58,945 INFO L78 Accepts]: Start accepts. Automaton has 10429 states and 13909 transitions. Word has length 180 [2024-11-07 00:32:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:32:58,946 INFO L471 AbstractCegarLoop]: Abstraction has 10429 states and 13909 transitions. [2024-11-07 00:32:58,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.857142857142858) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:32:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 10429 states and 13909 transitions. [2024-11-07 00:32:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-07 00:32:58,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:32:58,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:32:58,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 00:32:58,954 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:32:58,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:32:58,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1168410975, now seen corresponding path program 1 times [2024-11-07 00:32:58,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:32:58,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124187549] [2024-11-07 00:32:58,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:32:58,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:32:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:32:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:32:59,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:32:59,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124187549] [2024-11-07 00:32:59,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124187549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:32:59,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:32:59,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:32:59,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943506142] [2024-11-07 00:32:59,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:32:59,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:32:59,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:32:59,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:32:59,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:32:59,316 INFO L87 Difference]: Start difference. First operand 10429 states and 13909 transitions. Second operand has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:00,244 INFO L93 Difference]: Finished difference Result 27033 states and 36024 transitions. [2024-11-07 00:33:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-07 00:33:00,245 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2024-11-07 00:33:00,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:00,263 INFO L225 Difference]: With dead ends: 27033 [2024-11-07 00:33:00,263 INFO L226 Difference]: Without dead ends: 20051 [2024-11-07 00:33:00,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2024-11-07 00:33:00,273 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1652 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:00,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1586 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:33:00,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20051 states. [2024-11-07 00:33:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20051 to 10939. [2024-11-07 00:33:00,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10939 states, 10938 states have (on average 1.331321996708722) internal successors, (14562), 10938 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10939 states to 10939 states and 14562 transitions. [2024-11-07 00:33:00,505 INFO L78 Accepts]: Start accepts. Automaton has 10939 states and 14562 transitions. Word has length 181 [2024-11-07 00:33:00,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:00,505 INFO L471 AbstractCegarLoop]: Abstraction has 10939 states and 14562 transitions. [2024-11-07 00:33:00,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 10939 states and 14562 transitions. [2024-11-07 00:33:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-07 00:33:00,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:00,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:00,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 00:33:00,514 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash 240516985, now seen corresponding path program 1 times [2024-11-07 00:33:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:00,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726314169] [2024-11-07 00:33:00,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:00,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:00,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:00,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726314169] [2024-11-07 00:33:00,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726314169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:00,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:00,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:33:00,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987034519] [2024-11-07 00:33:00,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:00,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 00:33:00,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 00:33:00,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:33:00,834 INFO L87 Difference]: Start difference. First operand 10939 states and 14562 transitions. Second operand has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:01,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:01,603 INFO L93 Difference]: Finished difference Result 26139 states and 34903 transitions. [2024-11-07 00:33:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:33:01,603 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2024-11-07 00:33:01,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:01,625 INFO L225 Difference]: With dead ends: 26139 [2024-11-07 00:33:01,625 INFO L226 Difference]: Without dead ends: 23875 [2024-11-07 00:33:01,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:33:01,635 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 1451 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:01,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 2006 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:33:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23875 states. [2024-11-07 00:33:01,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23875 to 17793. [2024-11-07 00:33:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17793 states, 17792 states have (on average 1.324359262589928) internal successors, (23563), 17792 states have internal predecessors, (23563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17793 states to 17793 states and 23563 transitions. [2024-11-07 00:33:01,873 INFO L78 Accepts]: Start accepts. Automaton has 17793 states and 23563 transitions. Word has length 181 [2024-11-07 00:33:01,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:01,873 INFO L471 AbstractCegarLoop]: Abstraction has 17793 states and 23563 transitions. [2024-11-07 00:33:01,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 13 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:01,873 INFO L276 IsEmpty]: Start isEmpty. Operand 17793 states and 23563 transitions. [2024-11-07 00:33:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-07 00:33:01,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:01,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:01,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 00:33:01,887 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:01,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash -926729874, now seen corresponding path program 1 times [2024-11-07 00:33:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:01,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475863450] [2024-11-07 00:33:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:01,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:02,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:02,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475863450] [2024-11-07 00:33:02,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475863450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:02,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:02,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 00:33:02,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233837734] [2024-11-07 00:33:02,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:02,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 00:33:02,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 00:33:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-07 00:33:02,486 INFO L87 Difference]: Start difference. First operand 17793 states and 23563 transitions. Second operand has 16 states, 16 states have (on average 11.375) internal successors, (182), 15 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:03,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:03,481 INFO L93 Difference]: Finished difference Result 29357 states and 39229 transitions. [2024-11-07 00:33:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:33:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.375) internal successors, (182), 15 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-07 00:33:03,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:03,507 INFO L225 Difference]: With dead ends: 29357 [2024-11-07 00:33:03,507 INFO L226 Difference]: Without dead ends: 27103 [2024-11-07 00:33:03,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2024-11-07 00:33:03,521 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 1417 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:03,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1969 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:33:03,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27103 states. [2024-11-07 00:33:03,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27103 to 14961. [2024-11-07 00:33:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14961 states, 14960 states have (on average 1.3318181818181818) internal successors, (19924), 14960 states have internal predecessors, (19924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14961 states to 14961 states and 19924 transitions. [2024-11-07 00:33:03,770 INFO L78 Accepts]: Start accepts. Automaton has 14961 states and 19924 transitions. Word has length 182 [2024-11-07 00:33:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:03,771 INFO L471 AbstractCegarLoop]: Abstraction has 14961 states and 19924 transitions. [2024-11-07 00:33:03,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.375) internal successors, (182), 15 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 14961 states and 19924 transitions. [2024-11-07 00:33:03,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-07 00:33:03,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:03,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:03,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 00:33:03,785 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:03,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash 27368861, now seen corresponding path program 1 times [2024-11-07 00:33:03,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:03,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079242346] [2024-11-07 00:33:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:04,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079242346] [2024-11-07 00:33:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079242346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-07 00:33:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333378165] [2024-11-07 00:33:04,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:04,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 00:33:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:04,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 00:33:04,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2024-11-07 00:33:04,636 INFO L87 Difference]: Start difference. First operand 14961 states and 19924 transitions. Second operand has 22 states, 22 states have (on average 8.272727272727273) internal successors, (182), 21 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:08,566 INFO L93 Difference]: Finished difference Result 66436 states and 88416 transitions. [2024-11-07 00:33:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-07 00:33:08,567 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.272727272727273) internal successors, (182), 21 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-07 00:33:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:08,620 INFO L225 Difference]: With dead ends: 66436 [2024-11-07 00:33:08,620 INFO L226 Difference]: Without dead ends: 51519 [2024-11-07 00:33:08,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2339 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1380, Invalid=6452, Unknown=0, NotChecked=0, Total=7832 [2024-11-07 00:33:08,643 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 6559 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 3003 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6559 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 3162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 3003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:08,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6559 Valid, 2707 Invalid, 3162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 3003 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 00:33:08,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51519 states. [2024-11-07 00:33:09,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51519 to 35929. [2024-11-07 00:33:09,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35929 states, 35928 states have (on average 1.3220051213538186) internal successors, (47497), 35928 states have internal predecessors, (47497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35929 states to 35929 states and 47497 transitions. [2024-11-07 00:33:09,199 INFO L78 Accepts]: Start accepts. Automaton has 35929 states and 47497 transitions. Word has length 182 [2024-11-07 00:33:09,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:09,200 INFO L471 AbstractCegarLoop]: Abstraction has 35929 states and 47497 transitions. [2024-11-07 00:33:09,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.272727272727273) internal successors, (182), 21 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 35929 states and 47497 transitions. [2024-11-07 00:33:09,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-07 00:33:09,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:09,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:09,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 00:33:09,231 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:09,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1636973704, now seen corresponding path program 1 times [2024-11-07 00:33:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:09,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895380217] [2024-11-07 00:33:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:09,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:09,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:09,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895380217] [2024-11-07 00:33:09,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895380217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:09,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:09,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:09,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864708505] [2024-11-07 00:33:09,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:09,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:09,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:09,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:09,275 INFO L87 Difference]: Start difference. First operand 35929 states and 47497 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:09,470 INFO L93 Difference]: Finished difference Result 70153 states and 92850 transitions. [2024-11-07 00:33:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:09,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-07 00:33:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:09,504 INFO L225 Difference]: With dead ends: 70153 [2024-11-07 00:33:09,504 INFO L226 Difference]: Without dead ends: 34262 [2024-11-07 00:33:09,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:09,529 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 205 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:09,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 335 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:33:09,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34262 states. [2024-11-07 00:33:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34262 to 34262. [2024-11-07 00:33:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34262 states, 34261 states have (on average 1.3148185984063512) internal successors, (45047), 34261 states have internal predecessors, (45047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34262 states to 34262 states and 45047 transitions. [2024-11-07 00:33:09,947 INFO L78 Accepts]: Start accepts. Automaton has 34262 states and 45047 transitions. Word has length 182 [2024-11-07 00:33:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:09,948 INFO L471 AbstractCegarLoop]: Abstraction has 34262 states and 45047 transitions. [2024-11-07 00:33:09,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 34262 states and 45047 transitions. [2024-11-07 00:33:09,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-07 00:33:09,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:09,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:09,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-07 00:33:09,983 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:09,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:09,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1360707041, now seen corresponding path program 1 times [2024-11-07 00:33:09,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:09,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655412759] [2024-11-07 00:33:09,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:09,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:10,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:10,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655412759] [2024-11-07 00:33:10,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655412759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:10,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:10,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:33:10,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001351106] [2024-11-07 00:33:10,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:10,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:33:10,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:10,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:33:10,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:10,049 INFO L87 Difference]: Start difference. First operand 34262 states and 45047 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:10,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:33:10,241 INFO L93 Difference]: Finished difference Result 65244 states and 85897 transitions. [2024-11-07 00:33:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:33:10,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-07 00:33:10,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:33:10,274 INFO L225 Difference]: With dead ends: 65244 [2024-11-07 00:33:10,275 INFO L226 Difference]: Without dead ends: 31848 [2024-11-07 00:33:10,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:33:10,301 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 230 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:33:10,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 290 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:33:10,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31848 states. [2024-11-07 00:33:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31848 to 31848. [2024-11-07 00:33:10,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31848 states, 31847 states have (on average 1.3049580808239394) internal successors, (41559), 31847 states have internal predecessors, (41559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:10,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31848 states to 31848 states and 41559 transitions. [2024-11-07 00:33:10,767 INFO L78 Accepts]: Start accepts. Automaton has 31848 states and 41559 transitions. Word has length 182 [2024-11-07 00:33:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:33:10,767 INFO L471 AbstractCegarLoop]: Abstraction has 31848 states and 41559 transitions. [2024-11-07 00:33:10,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:33:10,767 INFO L276 IsEmpty]: Start isEmpty. Operand 31848 states and 41559 transitions. [2024-11-07 00:33:10,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-07 00:33:10,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:33:10,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:33:10,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 00:33:10,799 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:33:10,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:33:10,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2023320342, now seen corresponding path program 1 times [2024-11-07 00:33:10,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:33:10,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610096714] [2024-11-07 00:33:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:33:10,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:33:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:33:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:33:11,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:33:11,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610096714] [2024-11-07 00:33:11,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610096714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:33:11,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:33:11,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:33:11,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292601394] [2024-11-07 00:33:11,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:33:11,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:33:11,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:33:11,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:33:11,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:33:11,201 INFO L87 Difference]: Start difference. First operand 31848 states and 41559 transitions. Second operand has 10 states, 10 states have (on average 18.2) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)