./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+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', '1a76dc897aa0702a7581955a590e68a0e3d7c15bffbb5939a80772bf70ad5d7a'] 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+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 1a76dc897aa0702a7581955a590e68a0e3d7c15bffbb5939a80772bf70ad5d7a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:24:47,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:24:47,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:24:47,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:24:47,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:24:47,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:24:47,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:24:47,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:24:47,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:24:47,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:24:47,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:24:47,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:24:47,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:24:47,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:24:47,722 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:24:47,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:24:47,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:24:47,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:24:47,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:24:47,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:24:47,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:24:47,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:24:47,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:24:47,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:24:47,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:24:47,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:24:47,726 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 -> 1a76dc897aa0702a7581955a590e68a0e3d7c15bffbb5939a80772bf70ad5d7a [2024-11-07 00:24:48,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:24:48,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:24:48,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:24:48,078 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:24:48,078 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:24:48,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-07 00:24:49,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:24:50,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:24:50,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-07 00:24:50,047 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df6fc7544/1118809d4e4142f7b2bf8cf84a5fe4ac/FLAGa2b99307f [2024-11-07 00:24:50,072 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df6fc7544/1118809d4e4142f7b2bf8cf84a5fe4ac [2024-11-07 00:24:50,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:24:50,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:24:50,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:24:50,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:24:50,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:24:50,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:50" (1/1) ... [2024-11-07 00:24:50,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d985fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:50, skipping insertion in model container [2024-11-07 00:24:50,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:24:50" (1/1) ... [2024-11-07 00:24:50,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:24:50,482 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[10634,10647] [2024-11-07 00:24:50,600 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[25860,25873] [2024-11-07 00:24:50,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:24:50,860 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:24:50,915 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[10634,10647] [2024-11-07 00:24:50,989 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-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[25860,25873] [2024-11-07 00:24:51,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:24:51,146 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:24:51,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51 WrapperNode [2024-11-07 00:24:51,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:24:51,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:24:51,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:24:51,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:24:51,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,326 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3884 [2024-11-07 00:24:51,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:24:51,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:24:51,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:24:51,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:24:51,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,405 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 00:24:51,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:24:51,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:24:51,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:24:51,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:24:51,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (1/1) ... [2024-11-07 00:24:51,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:24:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:24:51,590 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 00:24:51,597 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 00:24:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:24:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:24:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:24:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:24:51,935 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:24:51,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:24:54,240 INFO L? ?]: Removed 589 outVars from TransFormulas that were not future-live. [2024-11-07 00:24:54,240 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:24:54,300 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:24:54,301 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:24:54,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:54 BoogieIcfgContainer [2024-11-07 00:24:54,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:24:54,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:24:54,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:24:54,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:24:54,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:24:50" (1/3) ... [2024-11-07 00:24:54,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1e9e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:54, skipping insertion in model container [2024-11-07 00:24:54,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:24:51" (2/3) ... [2024-11-07 00:24:54,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1e9e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:24:54, skipping insertion in model container [2024-11-07 00:24:54,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:24:54" (3/3) ... [2024-11-07 00:24:54,312 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-07 00:24:54,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:24:54,327 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 00:24:54,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:24:54,436 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;@29751ff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:24:54,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 00:24:54,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 705 states, 702 states have (on average 1.7834757834757835) internal successors, (1252), 704 states have internal predecessors, (1252), 0 states have call successors, (0), 0 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 00:24:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-07 00:24:54,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:54,472 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] [2024-11-07 00:24:54,473 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:54,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash -377035951, now seen corresponding path program 1 times [2024-11-07 00:24:54,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:54,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079193276] [2024-11-07 00:24:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:54,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:54,952 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 00:24:54,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:54,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079193276] [2024-11-07 00:24:54,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079193276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:54,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:54,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649808410] [2024-11-07 00:24:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:54,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:54,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:54,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:54,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:54,990 INFO L87 Difference]: Start difference. First operand has 705 states, 702 states have (on average 1.7834757834757835) internal successors, (1252), 704 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:55,122 INFO L93 Difference]: Finished difference Result 1069 states and 1856 transitions. [2024-11-07 00:24:55,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:55,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-07 00:24:55,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:55,138 INFO L225 Difference]: With dead ends: 1069 [2024-11-07 00:24:55,138 INFO L226 Difference]: Without dead ends: 846 [2024-11-07 00:24:55,142 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 00:24:55,144 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 631 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:55,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 2079 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-11-07 00:24:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 844. [2024-11-07 00:24:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 842 states have (on average 1.368171021377672) internal successors, (1152), 843 states have internal predecessors, (1152), 0 states have call successors, (0), 0 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 00:24:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1152 transitions. [2024-11-07 00:24:55,227 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1152 transitions. Word has length 63 [2024-11-07 00:24:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:55,228 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1152 transitions. [2024-11-07 00:24:55,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:55,229 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1152 transitions. [2024-11-07 00:24:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-07 00:24:55,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:55,234 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] [2024-11-07 00:24:55,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:24:55,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:55,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash 714072948, now seen corresponding path program 1 times [2024-11-07 00:24:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:55,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750634193] [2024-11-07 00:24:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:55,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:55,468 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 00:24:55,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:55,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750634193] [2024-11-07 00:24:55,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750634193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:55,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:55,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:55,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487689507] [2024-11-07 00:24:55,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:55,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:55,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:55,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:55,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:55,471 INFO L87 Difference]: Start difference. First operand 844 states and 1152 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:55,624 INFO L93 Difference]: Finished difference Result 1471 states and 2026 transitions. [2024-11-07 00:24:55,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:55,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-07 00:24:55,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:55,630 INFO L225 Difference]: With dead ends: 1471 [2024-11-07 00:24:55,631 INFO L226 Difference]: Without dead ends: 1228 [2024-11-07 00:24:55,632 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 00:24:55,635 INFO L432 NwaCegarLoop]: 1036 mSDtfsCounter, 549 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:55,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1683 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:24:55,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-07 00:24:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1224. [2024-11-07 00:24:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1222 states have (on average 1.3543371522094927) internal successors, (1655), 1223 states have internal predecessors, (1655), 0 states have call successors, (0), 0 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 00:24:55,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1655 transitions. [2024-11-07 00:24:55,679 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1655 transitions. Word has length 64 [2024-11-07 00:24:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:55,679 INFO L471 AbstractCegarLoop]: Abstraction has 1224 states and 1655 transitions. [2024-11-07 00:24:55,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1655 transitions. [2024-11-07 00:24:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-07 00:24:55,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:55,684 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] [2024-11-07 00:24:55,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:24:55,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:55,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:55,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1908609010, now seen corresponding path program 1 times [2024-11-07 00:24:55,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:55,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810135454] [2024-11-07 00:24:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:55,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:24:55,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810135454] [2024-11-07 00:24:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810135454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:55,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:55,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:24:55,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622212942] [2024-11-07 00:24:55,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:55,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:24:55,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:24:55,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:24:55,985 INFO L87 Difference]: Start difference. First operand 1224 states and 1655 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:56,544 INFO L93 Difference]: Finished difference Result 2482 states and 3457 transitions. [2024-11-07 00:24:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:24:56,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-07 00:24:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:56,552 INFO L225 Difference]: With dead ends: 2482 [2024-11-07 00:24:56,552 INFO L226 Difference]: Without dead ends: 1483 [2024-11-07 00:24:56,555 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 00:24:56,556 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 2610 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:56,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 575 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:24:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-11-07 00:24:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2024-11-07 00:24:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1479 states have (on average 1.3955375253549696) internal successors, (2064), 1480 states have internal predecessors, (2064), 0 states have call successors, (0), 0 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 00:24:56,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2064 transitions. [2024-11-07 00:24:56,598 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2064 transitions. Word has length 64 [2024-11-07 00:24:56,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:56,599 INFO L471 AbstractCegarLoop]: Abstraction has 1481 states and 2064 transitions. [2024-11-07 00:24:56,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:56,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2064 transitions. [2024-11-07 00:24:56,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-07 00:24:56,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:56,602 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] [2024-11-07 00:24:56,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:24:56,602 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1292035188, now seen corresponding path program 1 times [2024-11-07 00:24:56,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:56,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428240833] [2024-11-07 00:24:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:56,758 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 00:24:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428240833] [2024-11-07 00:24:56,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428240833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:56,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:56,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:56,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801153119] [2024-11-07 00:24:56,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:56,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:56,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:56,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:56,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:56,761 INFO L87 Difference]: Start difference. First operand 1481 states and 2064 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:56,857 INFO L93 Difference]: Finished difference Result 2949 states and 4174 transitions. [2024-11-07 00:24:56,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:56,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-07 00:24:56,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:56,866 INFO L225 Difference]: With dead ends: 2949 [2024-11-07 00:24:56,866 INFO L226 Difference]: Without dead ends: 2074 [2024-11-07 00:24:56,868 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 00:24:56,869 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 578 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:56,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1484 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2024-11-07 00:24:56,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2068. [2024-11-07 00:24:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 2066 states have (on average 1.3799612778315586) internal successors, (2851), 2067 states have internal predecessors, (2851), 0 states have call successors, (0), 0 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 00:24:56,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2851 transitions. [2024-11-07 00:24:56,924 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2851 transitions. Word has length 65 [2024-11-07 00:24:56,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:56,925 INFO L471 AbstractCegarLoop]: Abstraction has 2068 states and 2851 transitions. [2024-11-07 00:24:56,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2851 transitions. [2024-11-07 00:24:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 00:24:56,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:56,929 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] [2024-11-07 00:24:56,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:24:56,929 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:56,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1184582392, now seen corresponding path program 1 times [2024-11-07 00:24:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:56,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038459457] [2024-11-07 00:24:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:56,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:57,019 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 00:24:57,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:57,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038459457] [2024-11-07 00:24:57,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038459457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:57,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:57,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:57,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780607221] [2024-11-07 00:24:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:57,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:57,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:57,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:57,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:57,022 INFO L87 Difference]: Start difference. First operand 2068 states and 2851 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:57,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:57,085 INFO L93 Difference]: Finished difference Result 4442 states and 6243 transitions. [2024-11-07 00:24:57,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:57,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-07 00:24:57,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:57,099 INFO L225 Difference]: With dead ends: 4442 [2024-11-07 00:24:57,100 INFO L226 Difference]: Without dead ends: 3159 [2024-11-07 00:24:57,103 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 00:24:57,104 INFO L432 NwaCegarLoop]: 903 mSDtfsCounter, 396 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:57,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1441 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2024-11-07 00:24:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3155. [2024-11-07 00:24:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 3153 states have (on average 1.3799555978433238) internal successors, (4351), 3154 states have internal predecessors, (4351), 0 states have call successors, (0), 0 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 00:24:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4351 transitions. [2024-11-07 00:24:57,195 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4351 transitions. Word has length 66 [2024-11-07 00:24:57,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:57,195 INFO L471 AbstractCegarLoop]: Abstraction has 3155 states and 4351 transitions. [2024-11-07 00:24:57,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4351 transitions. [2024-11-07 00:24:57,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-07 00:24:57,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:57,201 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] [2024-11-07 00:24:57,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:24:57,201 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:57,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:57,201 INFO L85 PathProgramCache]: Analyzing trace with hash -237880367, now seen corresponding path program 1 times [2024-11-07 00:24:57,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:57,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111193637] [2024-11-07 00:24:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:57,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:57,462 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 00:24:57,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:57,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111193637] [2024-11-07 00:24:57,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111193637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:57,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:57,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:24:57,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104332776] [2024-11-07 00:24:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:57,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:24:57,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:57,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:24:57,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:24:57,466 INFO L87 Difference]: Start difference. First operand 3155 states and 4351 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:57,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:57,989 INFO L93 Difference]: Finished difference Result 6802 states and 9465 transitions. [2024-11-07 00:24:57,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:24:57,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-07 00:24:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:58,008 INFO L225 Difference]: With dead ends: 6802 [2024-11-07 00:24:58,009 INFO L226 Difference]: Without dead ends: 3982 [2024-11-07 00:24:58,015 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 00:24:58,017 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 2282 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:58,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 522 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:24:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2024-11-07 00:24:58,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3966. [2024-11-07 00:24:58,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3964 states have (on average 1.3816851664984864) internal successors, (5477), 3965 states have internal predecessors, (5477), 0 states have call successors, (0), 0 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 00:24:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5477 transitions. [2024-11-07 00:24:58,137 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5477 transitions. Word has length 66 [2024-11-07 00:24:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:58,138 INFO L471 AbstractCegarLoop]: Abstraction has 3966 states and 5477 transitions. [2024-11-07 00:24:58,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5477 transitions. [2024-11-07 00:24:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-07 00:24:58,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:58,144 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] [2024-11-07 00:24:58,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:24:58,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:58,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:58,145 INFO L85 PathProgramCache]: Analyzing trace with hash 426192215, now seen corresponding path program 1 times [2024-11-07 00:24:58,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:58,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178013592] [2024-11-07 00:24:58,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:58,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:24:58,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:58,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178013592] [2024-11-07 00:24:58,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178013592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:58,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:58,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:58,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285824436] [2024-11-07 00:24:58,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:58,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:24:58,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:58,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:24:58,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:24:58,389 INFO L87 Difference]: Start difference. First operand 3966 states and 5477 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:59,218 INFO L93 Difference]: Finished difference Result 8216 states and 11566 transitions. [2024-11-07 00:24:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:24:59,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-07 00:24:59,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:59,244 INFO L225 Difference]: With dead ends: 8216 [2024-11-07 00:24:59,245 INFO L226 Difference]: Without dead ends: 7032 [2024-11-07 00:24:59,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:24:59,251 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 3121 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3121 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:59,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3121 Valid, 1019 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:24:59,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7032 states. [2024-11-07 00:24:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7032 to 3990. [2024-11-07 00:24:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 3988 states have (on average 1.381394182547643) internal successors, (5509), 3989 states have internal predecessors, (5509), 0 states have call successors, (0), 0 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 00:24:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5509 transitions. [2024-11-07 00:24:59,367 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5509 transitions. Word has length 67 [2024-11-07 00:24:59,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:59,368 INFO L471 AbstractCegarLoop]: Abstraction has 3990 states and 5509 transitions. [2024-11-07 00:24:59,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5509 transitions. [2024-11-07 00:24:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-07 00:24:59,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:59,373 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] [2024-11-07 00:24:59,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:24:59,373 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:59,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash -889016011, now seen corresponding path program 1 times [2024-11-07 00:24:59,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:59,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006897280] [2024-11-07 00:24:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:59,487 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 00:24:59,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006897280] [2024-11-07 00:24:59,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006897280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:59,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:59,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:24:59,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575886911] [2024-11-07 00:24:59,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:59,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:24:59,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:59,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:24:59,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:24:59,490 INFO L87 Difference]: Start difference. First operand 3990 states and 5509 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:00,024 INFO L93 Difference]: Finished difference Result 9015 states and 12509 transitions. [2024-11-07 00:25:00,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:25:00,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-07 00:25:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:00,059 INFO L225 Difference]: With dead ends: 9015 [2024-11-07 00:25:00,059 INFO L226 Difference]: Without dead ends: 5335 [2024-11-07 00:25:00,067 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 00:25:00,068 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 2348 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2348 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:00,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2348 Valid, 530 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:25:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2024-11-07 00:25:00,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 3990. [2024-11-07 00:25:00,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 3988 states have (on average 1.376629889669007) internal successors, (5490), 3989 states have internal predecessors, (5490), 0 states have call successors, (0), 0 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 00:25:00,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 5490 transitions. [2024-11-07 00:25:00,197 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 5490 transitions. Word has length 67 [2024-11-07 00:25:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:00,198 INFO L471 AbstractCegarLoop]: Abstraction has 3990 states and 5490 transitions. [2024-11-07 00:25:00,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 5490 transitions. [2024-11-07 00:25:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 00:25:00,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:00,205 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] [2024-11-07 00:25:00,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:25:00,205 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:00,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash -132013379, now seen corresponding path program 1 times [2024-11-07 00:25:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:00,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814790661] [2024-11-07 00:25:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:00,353 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 00:25:00,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:00,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814790661] [2024-11-07 00:25:00,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814790661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:00,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:00,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:25:00,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085957471] [2024-11-07 00:25:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:00,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:25:00,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:00,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:25:00,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:25:00,356 INFO L87 Difference]: Start difference. First operand 3990 states and 5490 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:00,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:00,774 INFO L93 Difference]: Finished difference Result 8904 states and 12251 transitions. [2024-11-07 00:25:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:25:00,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-07 00:25:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:00,790 INFO L225 Difference]: With dead ends: 8904 [2024-11-07 00:25:00,791 INFO L226 Difference]: Without dead ends: 5195 [2024-11-07 00:25:00,797 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 00:25:00,798 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 2066 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:00,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 487 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:25:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2024-11-07 00:25:00,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5173. [2024-11-07 00:25:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5171 states have (on average 1.3612454070779347) internal successors, (7039), 5172 states have internal predecessors, (7039), 0 states have call successors, (0), 0 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 00:25:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 7039 transitions. [2024-11-07 00:25:00,938 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 7039 transitions. Word has length 68 [2024-11-07 00:25:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:00,939 INFO L471 AbstractCegarLoop]: Abstraction has 5173 states and 7039 transitions. [2024-11-07 00:25:00,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 7039 transitions. [2024-11-07 00:25:00,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 00:25:00,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:00,944 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] [2024-11-07 00:25:00,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:25:00,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:00,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:00,946 INFO L85 PathProgramCache]: Analyzing trace with hash -416949424, now seen corresponding path program 1 times [2024-11-07 00:25:00,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:00,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830715622] [2024-11-07 00:25:00,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:00,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:01,097 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 00:25:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:01,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830715622] [2024-11-07 00:25:01,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830715622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:01,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:01,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651822748] [2024-11-07 00:25:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:01,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:25:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:25:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:25:01,100 INFO L87 Difference]: Start difference. First operand 5173 states and 7039 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:01,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:01,677 INFO L93 Difference]: Finished difference Result 10854 states and 14878 transitions. [2024-11-07 00:25:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:25:01,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-07 00:25:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:01,701 INFO L225 Difference]: With dead ends: 10854 [2024-11-07 00:25:01,701 INFO L226 Difference]: Without dead ends: 8337 [2024-11-07 00:25:01,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:25:01,708 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 2676 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:01,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 934 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:25:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8337 states. [2024-11-07 00:25:01,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8337 to 5201. [2024-11-07 00:25:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5199 states have (on average 1.3608386228120792) internal successors, (7075), 5200 states have internal predecessors, (7075), 0 states have call successors, (0), 0 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 00:25:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 7075 transitions. [2024-11-07 00:25:01,880 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 7075 transitions. Word has length 68 [2024-11-07 00:25:01,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:01,881 INFO L471 AbstractCegarLoop]: Abstraction has 5201 states and 7075 transitions. [2024-11-07 00:25:01,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 7075 transitions. [2024-11-07 00:25:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 00:25:01,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:01,887 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] [2024-11-07 00:25:01,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:25:01,887 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:01,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:01,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1441651372, now seen corresponding path program 1 times [2024-11-07 00:25:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:01,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044669951] [2024-11-07 00:25:01,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:01,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:02,051 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 00:25:02,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:02,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044669951] [2024-11-07 00:25:02,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044669951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:02,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:02,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:02,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118999404] [2024-11-07 00:25:02,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:02,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:25:02,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:02,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:25:02,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:25:02,053 INFO L87 Difference]: Start difference. First operand 5201 states and 7075 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:02,712 INFO L93 Difference]: Finished difference Result 13207 states and 18306 transitions. [2024-11-07 00:25:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:25:02,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-07 00:25:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:02,737 INFO L225 Difference]: With dead ends: 13207 [2024-11-07 00:25:02,737 INFO L226 Difference]: Without dead ends: 10971 [2024-11-07 00:25:02,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:25:02,745 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 2912 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:02,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2912 Valid, 998 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:25:02,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2024-11-07 00:25:02,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5298. [2024-11-07 00:25:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 5296 states have (on average 1.3602719033232629) internal successors, (7204), 5297 states have internal predecessors, (7204), 0 states have call successors, (0), 0 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 00:25:02,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 7204 transitions. [2024-11-07 00:25:02,939 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 7204 transitions. Word has length 69 [2024-11-07 00:25:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:02,939 INFO L471 AbstractCegarLoop]: Abstraction has 5298 states and 7204 transitions. [2024-11-07 00:25:02,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 7204 transitions. [2024-11-07 00:25:02,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-07 00:25:02,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:02,945 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] [2024-11-07 00:25:02,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:25:02,946 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:02,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:02,946 INFO L85 PathProgramCache]: Analyzing trace with hash 756148337, now seen corresponding path program 1 times [2024-11-07 00:25:02,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:02,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605753812] [2024-11-07 00:25:02,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:02,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:03,529 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 00:25:03,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:03,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605753812] [2024-11-07 00:25:03,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605753812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:03,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:03,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:25:03,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819903407] [2024-11-07 00:25:03,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:03,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:25:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:03,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:25:03,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:25:03,533 INFO L87 Difference]: Start difference. First operand 5298 states and 7204 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:04,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:04,786 INFO L93 Difference]: Finished difference Result 9349 states and 12788 transitions. [2024-11-07 00:25:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:25:04,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-07 00:25:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:04,804 INFO L225 Difference]: With dead ends: 9349 [2024-11-07 00:25:04,804 INFO L226 Difference]: Without dead ends: 7704 [2024-11-07 00:25:04,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:25:04,810 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 2629 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:04,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 2081 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 00:25:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7704 states. [2024-11-07 00:25:04,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7704 to 5298. [2024-11-07 00:25:04,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5298 states, 5296 states have (on average 1.3598942598187311) internal successors, (7202), 5297 states have internal predecessors, (7202), 0 states have call successors, (0), 0 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 00:25:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5298 states to 5298 states and 7202 transitions. [2024-11-07 00:25:04,928 INFO L78 Accepts]: Start accepts. Automaton has 5298 states and 7202 transitions. Word has length 70 [2024-11-07 00:25:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:04,928 INFO L471 AbstractCegarLoop]: Abstraction has 5298 states and 7202 transitions. [2024-11-07 00:25:04,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5298 states and 7202 transitions. [2024-11-07 00:25:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-07 00:25:04,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:04,935 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] [2024-11-07 00:25:04,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:25:04,935 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:04,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash -223540144, now seen corresponding path program 1 times [2024-11-07 00:25:04,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252576065] [2024-11-07 00:25:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:04,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:05,368 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 00:25:05,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252576065] [2024-11-07 00:25:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252576065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:05,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:05,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:25:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033212036] [2024-11-07 00:25:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:05,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:25:05,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:25:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:05,370 INFO L87 Difference]: Start difference. First operand 5298 states and 7202 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:06,271 INFO L93 Difference]: Finished difference Result 10936 states and 15114 transitions. [2024-11-07 00:25:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:25:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-07 00:25:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:06,287 INFO L225 Difference]: With dead ends: 10936 [2024-11-07 00:25:06,288 INFO L226 Difference]: Without dead ends: 7848 [2024-11-07 00:25:06,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:25:06,294 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 3222 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:06,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 1634 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:25:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7848 states. [2024-11-07 00:25:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7848 to 5294. [2024-11-07 00:25:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5292 states have (on average 1.3594104308390023) internal successors, (7194), 5293 states have internal predecessors, (7194), 0 states have call successors, (0), 0 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 00:25:06,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 7194 transitions. [2024-11-07 00:25:06,430 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 7194 transitions. Word has length 70 [2024-11-07 00:25:06,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:06,430 INFO L471 AbstractCegarLoop]: Abstraction has 5294 states and 7194 transitions. [2024-11-07 00:25:06,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:06,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 7194 transitions. [2024-11-07 00:25:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 00:25:06,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:06,438 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] [2024-11-07 00:25:06,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:25:06,438 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:06,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:06,440 INFO L85 PathProgramCache]: Analyzing trace with hash 66854135, now seen corresponding path program 1 times [2024-11-07 00:25:06,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:06,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431671745] [2024-11-07 00:25:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:06,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:07,261 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 00:25:07,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:07,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431671745] [2024-11-07 00:25:07,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431671745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:07,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:07,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:25:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226914146] [2024-11-07 00:25:07,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:07,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:25:07,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:07,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:25:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:25:07,263 INFO L87 Difference]: Start difference. First operand 5294 states and 7194 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:08,730 INFO L93 Difference]: Finished difference Result 17329 states and 24091 transitions. [2024-11-07 00:25:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 00:25:08,730 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-07 00:25:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:08,764 INFO L225 Difference]: With dead ends: 17329 [2024-11-07 00:25:08,765 INFO L226 Difference]: Without dead ends: 14243 [2024-11-07 00:25:08,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:25:08,777 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 4230 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:08,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4230 Valid, 3673 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 00:25:08,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14243 states. [2024-11-07 00:25:08,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14243 to 5288. [2024-11-07 00:25:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 5286 states have (on average 1.358683314415437) internal successors, (7182), 5287 states have internal predecessors, (7182), 0 states have call successors, (0), 0 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 00:25:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7182 transitions. [2024-11-07 00:25:08,960 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7182 transitions. Word has length 71 [2024-11-07 00:25:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:08,960 INFO L471 AbstractCegarLoop]: Abstraction has 5288 states and 7182 transitions. [2024-11-07 00:25:08,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:08,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7182 transitions. [2024-11-07 00:25:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 00:25:08,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:08,969 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] [2024-11-07 00:25:08,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:25:08,969 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:08,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:08,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1113625680, now seen corresponding path program 1 times [2024-11-07 00:25:08,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:08,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897010468] [2024-11-07 00:25:08,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:08,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:09,338 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 00:25:09,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:09,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897010468] [2024-11-07 00:25:09,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897010468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:09,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:09,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:25:09,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843389652] [2024-11-07 00:25:09,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:09,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:25:09,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:09,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:25:09,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:09,340 INFO L87 Difference]: Start difference. First operand 5288 states and 7182 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:10,134 INFO L93 Difference]: Finished difference Result 11030 states and 15251 transitions. [2024-11-07 00:25:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:25:10,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-07 00:25:10,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:10,151 INFO L225 Difference]: With dead ends: 11030 [2024-11-07 00:25:10,152 INFO L226 Difference]: Without dead ends: 7900 [2024-11-07 00:25:10,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:25:10,159 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 3259 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3259 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:10,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3259 Valid, 1566 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:25:10,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2024-11-07 00:25:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 5264. [2024-11-07 00:25:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 1.3574686431014824) internal successors, (7143), 5263 states have internal predecessors, (7143), 0 states have call successors, (0), 0 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 00:25:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 7143 transitions. [2024-11-07 00:25:10,262 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 7143 transitions. Word has length 71 [2024-11-07 00:25:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:10,263 INFO L471 AbstractCegarLoop]: Abstraction has 5264 states and 7143 transitions. [2024-11-07 00:25:10,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 7143 transitions. [2024-11-07 00:25:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 00:25:10,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:10,294 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] [2024-11-07 00:25:10,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:25:10,295 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:10,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:10,295 INFO L85 PathProgramCache]: Analyzing trace with hash 468124592, now seen corresponding path program 1 times [2024-11-07 00:25:10,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:10,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702211383] [2024-11-07 00:25:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:10,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:25:10,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702211383] [2024-11-07 00:25:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702211383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:10,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:10,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:25:10,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589558851] [2024-11-07 00:25:10,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:10,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:25:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:10,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:25:10,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:25:10,951 INFO L87 Difference]: Start difference. First operand 5264 states and 7143 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:11,718 INFO L93 Difference]: Finished difference Result 12262 states and 16989 transitions. [2024-11-07 00:25:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:25:11,719 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-07 00:25:11,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:11,739 INFO L225 Difference]: With dead ends: 12262 [2024-11-07 00:25:11,739 INFO L226 Difference]: Without dead ends: 8976 [2024-11-07 00:25:11,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:25:11,746 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 2790 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2790 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:11,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2790 Valid, 3802 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:25:11,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8976 states. [2024-11-07 00:25:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8976 to 5054. [2024-11-07 00:25:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5054 states, 5052 states have (on average 1.3596595407759304) internal successors, (6869), 5053 states have internal predecessors, (6869), 0 states have call successors, (0), 0 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 00:25:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5054 states to 5054 states and 6869 transitions. [2024-11-07 00:25:11,890 INFO L78 Accepts]: Start accepts. Automaton has 5054 states and 6869 transitions. Word has length 71 [2024-11-07 00:25:11,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:11,890 INFO L471 AbstractCegarLoop]: Abstraction has 5054 states and 6869 transitions. [2024-11-07 00:25:11,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:11,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5054 states and 6869 transitions. [2024-11-07 00:25:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 00:25:11,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:11,895 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] [2024-11-07 00:25:11,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:25:11,896 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:11,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:11,897 INFO L85 PathProgramCache]: Analyzing trace with hash 525454090, now seen corresponding path program 1 times [2024-11-07 00:25:11,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:11,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916355736] [2024-11-07 00:25:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:11,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:12,053 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 00:25:12,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:12,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916355736] [2024-11-07 00:25:12,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916355736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:12,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:12,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:12,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890073557] [2024-11-07 00:25:12,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:12,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:25:12,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:25:12,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:25:12,056 INFO L87 Difference]: Start difference. First operand 5054 states and 6869 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:12,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:12,670 INFO L93 Difference]: Finished difference Result 11722 states and 16172 transitions. [2024-11-07 00:25:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:25:12,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-07 00:25:12,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:12,693 INFO L225 Difference]: With dead ends: 11722 [2024-11-07 00:25:12,694 INFO L226 Difference]: Without dead ends: 9650 [2024-11-07 00:25:12,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:25:12,701 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 2659 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:12,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 935 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:25:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9650 states. [2024-11-07 00:25:12,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9650 to 5125. [2024-11-07 00:25:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5123 states have (on average 1.3601405426507907) internal successors, (6968), 5124 states have internal predecessors, (6968), 0 states have call successors, (0), 0 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 00:25:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6968 transitions. [2024-11-07 00:25:12,834 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6968 transitions. Word has length 71 [2024-11-07 00:25:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:12,835 INFO L471 AbstractCegarLoop]: Abstraction has 5125 states and 6968 transitions. [2024-11-07 00:25:12,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6968 transitions. [2024-11-07 00:25:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-07 00:25:12,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:12,841 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] [2024-11-07 00:25:12,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:25:12,841 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:12,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:12,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1951824160, now seen corresponding path program 1 times [2024-11-07 00:25:12,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:12,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629642168] [2024-11-07 00:25:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:12,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:13,549 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 00:25:13,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:13,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629642168] [2024-11-07 00:25:13,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629642168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:13,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:13,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:25:13,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244540777] [2024-11-07 00:25:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:13,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:25:13,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:13,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:25:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:25:13,551 INFO L87 Difference]: Start difference. First operand 5125 states and 6968 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:14,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:14,304 INFO L93 Difference]: Finished difference Result 12111 states and 16792 transitions. [2024-11-07 00:25:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 00:25:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-07 00:25:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:14,323 INFO L225 Difference]: With dead ends: 12111 [2024-11-07 00:25:14,324 INFO L226 Difference]: Without dead ends: 8944 [2024-11-07 00:25:14,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2024-11-07 00:25:14,331 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 3084 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:14,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 3586 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:25:14,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8944 states. [2024-11-07 00:25:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8944 to 5038. [2024-11-07 00:25:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5038 states, 5037 states have (on average 1.3575540996624975) internal successors, (6838), 5037 states have internal predecessors, (6838), 0 states have call successors, (0), 0 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 00:25:14,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5038 states to 5038 states and 6838 transitions. [2024-11-07 00:25:14,423 INFO L78 Accepts]: Start accepts. Automaton has 5038 states and 6838 transitions. Word has length 72 [2024-11-07 00:25:14,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:14,423 INFO L471 AbstractCegarLoop]: Abstraction has 5038 states and 6838 transitions. [2024-11-07 00:25:14,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 5038 states and 6838 transitions. [2024-11-07 00:25:14,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-07 00:25:14,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:14,429 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] [2024-11-07 00:25:14,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:25:14,429 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:14,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:14,430 INFO L85 PathProgramCache]: Analyzing trace with hash 216436712, now seen corresponding path program 1 times [2024-11-07 00:25:14,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:14,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343013740] [2024-11-07 00:25:14,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:14,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:14,769 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 00:25:14,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:14,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343013740] [2024-11-07 00:25:14,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343013740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:14,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:14,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:25:14,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596294911] [2024-11-07 00:25:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:14,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:25:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:25:14,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:25:14,771 INFO L87 Difference]: Start difference. First operand 5038 states and 6838 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:15,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:15,563 INFO L93 Difference]: Finished difference Result 12203 states and 16876 transitions. [2024-11-07 00:25:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 00:25:15,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-07 00:25:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:15,582 INFO L225 Difference]: With dead ends: 12203 [2024-11-07 00:25:15,583 INFO L226 Difference]: Without dead ends: 8873 [2024-11-07 00:25:15,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-07 00:25:15,590 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 2092 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:15,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 1659 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:25:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8873 states. [2024-11-07 00:25:15,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8873 to 4913. [2024-11-07 00:25:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4913 states, 4912 states have (on average 1.3574918566775245) internal successors, (6668), 4912 states have internal predecessors, (6668), 0 states have call successors, (0), 0 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 00:25:15,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 6668 transitions. [2024-11-07 00:25:15,685 INFO L78 Accepts]: Start accepts. Automaton has 4913 states and 6668 transitions. Word has length 72 [2024-11-07 00:25:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:15,685 INFO L471 AbstractCegarLoop]: Abstraction has 4913 states and 6668 transitions. [2024-11-07 00:25:15,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 4913 states and 6668 transitions. [2024-11-07 00:25:15,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 00:25:15,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:15,691 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] [2024-11-07 00:25:15,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:25:15,691 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:15,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 701339809, now seen corresponding path program 1 times [2024-11-07 00:25:15,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:15,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826563483] [2024-11-07 00:25:15,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:15,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:16,368 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 00:25:16,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:16,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826563483] [2024-11-07 00:25:16,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826563483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:16,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:16,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 00:25:16,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327036580] [2024-11-07 00:25:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:16,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 00:25:16,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 00:25:16,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:25:16,371 INFO L87 Difference]: Start difference. First operand 4913 states and 6668 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:17,356 INFO L93 Difference]: Finished difference Result 10257 states and 14182 transitions. [2024-11-07 00:25:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:25:17,357 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-07 00:25:17,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:17,375 INFO L225 Difference]: With dead ends: 10257 [2024-11-07 00:25:17,375 INFO L226 Difference]: Without dead ends: 8169 [2024-11-07 00:25:17,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:25:17,382 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 2406 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:17,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 2748 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:25:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2024-11-07 00:25:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 4913. [2024-11-07 00:25:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4913 states, 4912 states have (on average 1.357288273615635) internal successors, (6667), 4912 states have internal predecessors, (6667), 0 states have call successors, (0), 0 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 00:25:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 6667 transitions. [2024-11-07 00:25:17,482 INFO L78 Accepts]: Start accepts. Automaton has 4913 states and 6667 transitions. Word has length 73 [2024-11-07 00:25:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:17,482 INFO L471 AbstractCegarLoop]: Abstraction has 4913 states and 6667 transitions. [2024-11-07 00:25:17,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4913 states and 6667 transitions. [2024-11-07 00:25:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 00:25:17,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:17,488 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] [2024-11-07 00:25:17,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:25:17,491 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:17,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:17,491 INFO L85 PathProgramCache]: Analyzing trace with hash -39253326, now seen corresponding path program 1 times [2024-11-07 00:25:17,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:17,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234534388] [2024-11-07 00:25:17,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:17,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:17,555 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 00:25:17,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:17,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234534388] [2024-11-07 00:25:17,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234534388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:17,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:17,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:17,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938213348] [2024-11-07 00:25:17,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:17,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:17,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:17,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:17,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:17,559 INFO L87 Difference]: Start difference. First operand 4913 states and 6667 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 00:25:17,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:17,599 INFO L93 Difference]: Finished difference Result 7318 states and 10015 transitions. [2024-11-07 00:25:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:17,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-07 00:25:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:17,610 INFO L225 Difference]: With dead ends: 7318 [2024-11-07 00:25:17,610 INFO L226 Difference]: Without dead ends: 4915 [2024-11-07 00:25:17,615 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 00:25:17,617 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 328 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:17,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 1227 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:17,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2024-11-07 00:25:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4913. [2024-11-07 00:25:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4913 states, 4912 states have (on average 1.346498371335505) internal successors, (6614), 4912 states have internal predecessors, (6614), 0 states have call successors, (0), 0 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 00:25:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 6614 transitions. [2024-11-07 00:25:17,681 INFO L78 Accepts]: Start accepts. Automaton has 4913 states and 6614 transitions. Word has length 74 [2024-11-07 00:25:17,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:17,682 INFO L471 AbstractCegarLoop]: Abstraction has 4913 states and 6614 transitions. [2024-11-07 00:25:17,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 00:25:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4913 states and 6614 transitions. [2024-11-07 00:25:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 00:25:17,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:17,687 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] [2024-11-07 00:25:17,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:25:17,689 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:17,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:17,689 INFO L85 PathProgramCache]: Analyzing trace with hash 753697715, now seen corresponding path program 1 times [2024-11-07 00:25:17,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:17,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983630080] [2024-11-07 00:25:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:17,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:17,743 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 00:25:17,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983630080] [2024-11-07 00:25:17,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983630080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:17,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:17,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:17,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710366459] [2024-11-07 00:25:17,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:17,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:17,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:17,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:17,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:17,746 INFO L87 Difference]: Start difference. First operand 4913 states and 6614 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 00:25:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:17,854 INFO L93 Difference]: Finished difference Result 9597 states and 13053 transitions. [2024-11-07 00:25:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:17,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-07 00:25:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:17,867 INFO L225 Difference]: With dead ends: 9597 [2024-11-07 00:25:17,868 INFO L226 Difference]: Without dead ends: 6810 [2024-11-07 00:25:17,873 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 00:25:17,874 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 435 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:17,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 578 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:25:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2024-11-07 00:25:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 6790. [2024-11-07 00:25:17,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6790 states, 6789 states have (on average 1.3641184268669908) internal successors, (9261), 6789 states have internal predecessors, (9261), 0 states have call successors, (0), 0 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 00:25:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6790 states to 6790 states and 9261 transitions. [2024-11-07 00:25:18,009 INFO L78 Accepts]: Start accepts. Automaton has 6790 states and 9261 transitions. Word has length 74 [2024-11-07 00:25:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:18,009 INFO L471 AbstractCegarLoop]: Abstraction has 6790 states and 9261 transitions. [2024-11-07 00:25:18,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 00:25:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6790 states and 9261 transitions. [2024-11-07 00:25:18,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 00:25:18,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:18,016 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] [2024-11-07 00:25:18,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:25:18,016 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:18,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:18,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1200633410, now seen corresponding path program 1 times [2024-11-07 00:25:18,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:18,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546956117] [2024-11-07 00:25:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:25:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546956117] [2024-11-07 00:25:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546956117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:18,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:18,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392614183] [2024-11-07 00:25:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:18,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:18,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:18,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:18,075 INFO L87 Difference]: Start difference. First operand 6790 states and 9261 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:18,164 INFO L93 Difference]: Finished difference Result 14232 states and 19591 transitions. [2024-11-07 00:25:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-07 00:25:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:18,182 INFO L225 Difference]: With dead ends: 14232 [2024-11-07 00:25:18,182 INFO L226 Difference]: Without dead ends: 10165 [2024-11-07 00:25:18,190 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 00:25:18,192 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 371 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:18,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 550 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:18,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2024-11-07 00:25:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 10133. [2024-11-07 00:25:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10133 states, 10132 states have (on average 1.3788985392814843) internal successors, (13971), 10132 states have internal predecessors, (13971), 0 states have call successors, (0), 0 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 00:25:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10133 states to 10133 states and 13971 transitions. [2024-11-07 00:25:18,334 INFO L78 Accepts]: Start accepts. Automaton has 10133 states and 13971 transitions. Word has length 75 [2024-11-07 00:25:18,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:18,334 INFO L471 AbstractCegarLoop]: Abstraction has 10133 states and 13971 transitions. [2024-11-07 00:25:18,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 10133 states and 13971 transitions. [2024-11-07 00:25:18,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 00:25:18,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:18,341 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] [2024-11-07 00:25:18,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:25:18,341 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:18,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash 173641677, now seen corresponding path program 1 times [2024-11-07 00:25:18,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:18,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987275123] [2024-11-07 00:25:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:18,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:25:18,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:18,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987275123] [2024-11-07 00:25:18,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987275123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:18,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:18,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:18,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286093628] [2024-11-07 00:25:18,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:18,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:18,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:18,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:18,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:18,397 INFO L87 Difference]: Start difference. First operand 10133 states and 13971 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:18,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:18,489 INFO L93 Difference]: Finished difference Result 19255 states and 26694 transitions. [2024-11-07 00:25:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-07 00:25:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:18,513 INFO L225 Difference]: With dead ends: 19255 [2024-11-07 00:25:18,513 INFO L226 Difference]: Without dead ends: 12800 [2024-11-07 00:25:18,524 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 00:25:18,525 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 369 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:18,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 645 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12800 states. [2024-11-07 00:25:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12800 to 9461. [2024-11-07 00:25:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9461 states, 9460 states have (on average 1.3839323467230444) internal successors, (13092), 9460 states have internal predecessors, (13092), 0 states have call successors, (0), 0 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 00:25:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9461 states to 9461 states and 13092 transitions. [2024-11-07 00:25:18,669 INFO L78 Accepts]: Start accepts. Automaton has 9461 states and 13092 transitions. Word has length 75 [2024-11-07 00:25:18,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:18,670 INFO L471 AbstractCegarLoop]: Abstraction has 9461 states and 13092 transitions. [2024-11-07 00:25:18,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 9461 states and 13092 transitions. [2024-11-07 00:25:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 00:25:18,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:18,676 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] [2024-11-07 00:25:18,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 00:25:18,676 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:18,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash -859725899, now seen corresponding path program 1 times [2024-11-07 00:25:18,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:18,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357279022] [2024-11-07 00:25:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:18,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:19,127 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 00:25:19,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:19,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357279022] [2024-11-07 00:25:19,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357279022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:19,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:19,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 00:25:19,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720347193] [2024-11-07 00:25:19,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:19,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 00:25:19,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:19,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 00:25:19,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:25:19,129 INFO L87 Difference]: Start difference. First operand 9461 states and 13092 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:20,430 INFO L93 Difference]: Finished difference Result 36785 states and 51099 transitions. [2024-11-07 00:25:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 00:25:20,430 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-07 00:25:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:20,490 INFO L225 Difference]: With dead ends: 36785 [2024-11-07 00:25:20,490 INFO L226 Difference]: Without dead ends: 33927 [2024-11-07 00:25:20,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2024-11-07 00:25:20,510 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 5088 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5088 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:20,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5088 Valid, 1484 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:25:20,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33927 states. [2024-11-07 00:25:20,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33927 to 9469. [2024-11-07 00:25:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 9468 states have (on average 1.3836079425433037) internal successors, (13100), 9468 states have internal predecessors, (13100), 0 states have call successors, (0), 0 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 00:25:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 13100 transitions. [2024-11-07 00:25:20,919 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 13100 transitions. Word has length 76 [2024-11-07 00:25:20,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:20,920 INFO L471 AbstractCegarLoop]: Abstraction has 9469 states and 13100 transitions. [2024-11-07 00:25:20,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 13100 transitions. [2024-11-07 00:25:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 00:25:20,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:20,929 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] [2024-11-07 00:25:20,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-07 00:25:20,929 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:20,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash 812559439, now seen corresponding path program 1 times [2024-11-07 00:25:20,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:20,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108220730] [2024-11-07 00:25:20,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:20,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:21,220 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 00:25:21,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:21,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108220730] [2024-11-07 00:25:21,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108220730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:21,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:21,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:25:21,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025011002] [2024-11-07 00:25:21,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:21,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:25:21,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:21,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:25:21,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:21,222 INFO L87 Difference]: Start difference. First operand 9469 states and 13100 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:21,822 INFO L93 Difference]: Finished difference Result 12499 states and 17303 transitions. [2024-11-07 00:25:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:25:21,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-07 00:25:21,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:21,839 INFO L225 Difference]: With dead ends: 12499 [2024-11-07 00:25:21,839 INFO L226 Difference]: Without dead ends: 9675 [2024-11-07 00:25:21,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:25:21,846 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 2157 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:21,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 1114 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:25:21,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2024-11-07 00:25:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 9469. [2024-11-07 00:25:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9469 states, 9468 states have (on average 1.3835023236163921) internal successors, (13099), 9468 states have internal predecessors, (13099), 0 states have call successors, (0), 0 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 00:25:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9469 states to 9469 states and 13099 transitions. [2024-11-07 00:25:21,987 INFO L78 Accepts]: Start accepts. Automaton has 9469 states and 13099 transitions. Word has length 76 [2024-11-07 00:25:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:21,988 INFO L471 AbstractCegarLoop]: Abstraction has 9469 states and 13099 transitions. [2024-11-07 00:25:21,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 9469 states and 13099 transitions. [2024-11-07 00:25:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 00:25:21,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:21,994 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] [2024-11-07 00:25:21,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 00:25:21,994 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:21,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:21,994 INFO L85 PathProgramCache]: Analyzing trace with hash 108461126, now seen corresponding path program 1 times [2024-11-07 00:25:21,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:21,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453383282] [2024-11-07 00:25:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:25:22,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:22,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453383282] [2024-11-07 00:25:22,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453383282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:22,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:22,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:25:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517150452] [2024-11-07 00:25:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:22,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:25:22,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:22,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:25:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:22,275 INFO L87 Difference]: Start difference. First operand 9469 states and 13099 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:22,906 INFO L93 Difference]: Finished difference Result 15828 states and 21898 transitions. [2024-11-07 00:25:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 00:25:22,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 00:25:22,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:22,929 INFO L225 Difference]: With dead ends: 15828 [2024-11-07 00:25:22,930 INFO L226 Difference]: Without dead ends: 12970 [2024-11-07 00:25:22,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2024-11-07 00:25:22,941 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 2149 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:22,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 1197 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:25:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12970 states. [2024-11-07 00:25:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12970 to 9446. [2024-11-07 00:25:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9446 states, 9445 states have (on average 1.384012705134992) internal successors, (13072), 9445 states have internal predecessors, (13072), 0 states have call successors, (0), 0 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 00:25:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9446 states to 9446 states and 13072 transitions. [2024-11-07 00:25:23,080 INFO L78 Accepts]: Start accepts. Automaton has 9446 states and 13072 transitions. Word has length 77 [2024-11-07 00:25:23,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:23,081 INFO L471 AbstractCegarLoop]: Abstraction has 9446 states and 13072 transitions. [2024-11-07 00:25:23,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9446 states and 13072 transitions. [2024-11-07 00:25:23,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 00:25:23,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:23,087 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] [2024-11-07 00:25:23,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 00:25:23,087 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:23,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:23,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1768326172, now seen corresponding path program 1 times [2024-11-07 00:25:23,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:23,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787041678] [2024-11-07 00:25:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:23,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:23,147 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 00:25:23,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:23,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787041678] [2024-11-07 00:25:23,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787041678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:23,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:23,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:23,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456407318] [2024-11-07 00:25:23,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:23,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:23,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:23,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:23,149 INFO L87 Difference]: Start difference. First operand 9446 states and 13072 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:23,218 INFO L93 Difference]: Finished difference Result 12680 states and 17564 transitions. [2024-11-07 00:25:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 00:25:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:23,230 INFO L225 Difference]: With dead ends: 12680 [2024-11-07 00:25:23,230 INFO L226 Difference]: Without dead ends: 7810 [2024-11-07 00:25:23,236 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 00:25:23,239 INFO L432 NwaCegarLoop]: 541 mSDtfsCounter, 245 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:23,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 805 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7810 states. [2024-11-07 00:25:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7810 to 6004. [2024-11-07 00:25:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6004 states, 6003 states have (on average 1.3594869232050641) internal successors, (8161), 6003 states have internal predecessors, (8161), 0 states have call successors, (0), 0 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 00:25:23,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 8161 transitions. [2024-11-07 00:25:23,320 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 8161 transitions. Word has length 77 [2024-11-07 00:25:23,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:23,321 INFO L471 AbstractCegarLoop]: Abstraction has 6004 states and 8161 transitions. [2024-11-07 00:25:23,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:23,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 8161 transitions. [2024-11-07 00:25:23,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 00:25:23,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:23,327 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] [2024-11-07 00:25:23,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 00:25:23,327 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:23,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1645706330, now seen corresponding path program 1 times [2024-11-07 00:25:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141768932] [2024-11-07 00:25:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:23,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:23,401 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 00:25:23,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141768932] [2024-11-07 00:25:23,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141768932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:23,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:23,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:23,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866504783] [2024-11-07 00:25:23,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:23,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:23,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:23,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:23,405 INFO L87 Difference]: Start difference. First operand 6004 states and 8161 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:23,451 INFO L93 Difference]: Finished difference Result 8035 states and 10934 transitions. [2024-11-07 00:25:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:23,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 00:25:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:23,458 INFO L225 Difference]: With dead ends: 8035 [2024-11-07 00:25:23,458 INFO L226 Difference]: Without dead ends: 5039 [2024-11-07 00:25:23,462 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 00:25:23,463 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 252 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:23,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 848 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2024-11-07 00:25:23,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 3972. [2024-11-07 00:25:23,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3972 states, 3971 states have (on average 1.3281289347771341) internal successors, (5274), 3971 states have internal predecessors, (5274), 0 states have call successors, (0), 0 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 00:25:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 5274 transitions. [2024-11-07 00:25:23,514 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 5274 transitions. Word has length 77 [2024-11-07 00:25:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:23,515 INFO L471 AbstractCegarLoop]: Abstraction has 3972 states and 5274 transitions. [2024-11-07 00:25:23,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 5274 transitions. [2024-11-07 00:25:23,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 00:25:23,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:23,519 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] [2024-11-07 00:25:23,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-07 00:25:23,520 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:23,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:23,520 INFO L85 PathProgramCache]: Analyzing trace with hash 264768951, now seen corresponding path program 1 times [2024-11-07 00:25:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:23,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358931020] [2024-11-07 00:25:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:23,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:24,585 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 00:25:24,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358931020] [2024-11-07 00:25:24,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358931020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:24,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:24,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-07 00:25:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159499587] [2024-11-07 00:25:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:24,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 00:25:24,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:24,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 00:25:24,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2024-11-07 00:25:24,588 INFO L87 Difference]: Start difference. First operand 3972 states and 5274 transitions. Second operand has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:27,538 INFO L93 Difference]: Finished difference Result 11411 states and 15348 transitions. [2024-11-07 00:25:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-07 00:25:27,538 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-07 00:25:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:27,552 INFO L225 Difference]: With dead ends: 11411 [2024-11-07 00:25:27,553 INFO L226 Difference]: Without dead ends: 11286 [2024-11-07 00:25:27,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=346, Invalid=1724, Unknown=0, NotChecked=0, Total=2070 [2024-11-07 00:25:27,559 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 3263 mSDsluCounter, 6311 mSDsCounter, 0 mSdLazyCounter, 3311 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 6670 SdHoareTripleChecker+Invalid, 3331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:27,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3263 Valid, 6670 Invalid, 3331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3311 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 00:25:27,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11286 states. [2024-11-07 00:25:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11286 to 3984. [2024-11-07 00:25:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3983 states have (on average 1.3276424805423048) internal successors, (5288), 3983 states have internal predecessors, (5288), 0 states have call successors, (0), 0 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 00:25:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 5288 transitions. [2024-11-07 00:25:27,629 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 5288 transitions. Word has length 79 [2024-11-07 00:25:27,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:27,629 INFO L471 AbstractCegarLoop]: Abstraction has 3984 states and 5288 transitions. [2024-11-07 00:25:27,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:27,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 5288 transitions. [2024-11-07 00:25:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 00:25:27,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:27,633 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] [2024-11-07 00:25:27,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-07 00:25:27,633 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:27,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1223763033, now seen corresponding path program 1 times [2024-11-07 00:25:27,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:27,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469400602] [2024-11-07 00:25:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:27,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:28,145 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 00:25:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469400602] [2024-11-07 00:25:28,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469400602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:28,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:28,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 00:25:28,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893272039] [2024-11-07 00:25:28,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:28,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 00:25:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 00:25:28,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-07 00:25:28,148 INFO L87 Difference]: Start difference. First operand 3984 states and 5288 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:29,048 INFO L93 Difference]: Finished difference Result 11530 states and 15519 transitions. [2024-11-07 00:25:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-07 00:25:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-07 00:25:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:29,063 INFO L225 Difference]: With dead ends: 11530 [2024-11-07 00:25:29,063 INFO L226 Difference]: Without dead ends: 11363 [2024-11-07 00:25:29,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-07 00:25:29,069 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 3749 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:29,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 2017 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:25:29,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2024-11-07 00:25:29,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 3939. [2024-11-07 00:25:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3939 states, 3938 states have (on average 1.3285931945149823) internal successors, (5232), 3938 states have internal predecessors, (5232), 0 states have call successors, (0), 0 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 00:25:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3939 states to 3939 states and 5232 transitions. [2024-11-07 00:25:29,152 INFO L78 Accepts]: Start accepts. Automaton has 3939 states and 5232 transitions. Word has length 79 [2024-11-07 00:25:29,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:29,153 INFO L471 AbstractCegarLoop]: Abstraction has 3939 states and 5232 transitions. [2024-11-07 00:25:29,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3939 states and 5232 transitions. [2024-11-07 00:25:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:25:29,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:29,159 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] [2024-11-07 00:25:29,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-07 00:25:29,159 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:29,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:29,160 INFO L85 PathProgramCache]: Analyzing trace with hash 974682057, now seen corresponding path program 1 times [2024-11-07 00:25:29,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:29,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737281306] [2024-11-07 00:25:29,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:29,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:29,293 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 00:25:29,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:29,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737281306] [2024-11-07 00:25:29,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737281306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:29,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:29,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217786728] [2024-11-07 00:25:29,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:29,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:25:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:25:29,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:29,295 INFO L87 Difference]: Start difference. First operand 3939 states and 5232 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 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 00:25:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:29,434 INFO L93 Difference]: Finished difference Result 12661 states and 17324 transitions. [2024-11-07 00:25:29,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:25:29,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-07 00:25:29,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:29,448 INFO L225 Difference]: With dead ends: 12661 [2024-11-07 00:25:29,449 INFO L226 Difference]: Without dead ends: 9797 [2024-11-07 00:25:29,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:29,455 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1742 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:29,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 1189 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:25:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2024-11-07 00:25:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 6801. [2024-11-07 00:25:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6801 states, 6800 states have (on average 1.3372058823529411) internal successors, (9093), 6800 states have internal predecessors, (9093), 0 states have call successors, (0), 0 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 00:25:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6801 states to 6801 states and 9093 transitions. [2024-11-07 00:25:29,558 INFO L78 Accepts]: Start accepts. Automaton has 6801 states and 9093 transitions. Word has length 85 [2024-11-07 00:25:29,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:29,558 INFO L471 AbstractCegarLoop]: Abstraction has 6801 states and 9093 transitions. [2024-11-07 00:25:29,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 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 00:25:29,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6801 states and 9093 transitions. [2024-11-07 00:25:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:25:29,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:29,566 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] [2024-11-07 00:25:29,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-07 00:25:29,566 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:29,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash -567265296, now seen corresponding path program 1 times [2024-11-07 00:25:29,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:29,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161606631] [2024-11-07 00:25:29,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:29,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:25:29,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:29,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161606631] [2024-11-07 00:25:29,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161606631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:29,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:29,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:29,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665486910] [2024-11-07 00:25:29,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:29,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:25:29,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:29,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:25:29,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:29,743 INFO L87 Difference]: Start difference. First operand 6801 states and 9093 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 00:25:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:29,896 INFO L93 Difference]: Finished difference Result 8905 states and 11872 transitions. [2024-11-07 00:25:29,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:25:29,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-07 00:25:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:29,908 INFO L225 Difference]: With dead ends: 8905 [2024-11-07 00:25:29,909 INFO L226 Difference]: Without dead ends: 8065 [2024-11-07 00:25:29,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:29,914 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 900 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:29,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 1180 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:25:29,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8065 states. [2024-11-07 00:25:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8065 to 7683. [2024-11-07 00:25:30,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 7682 states have (on average 1.3366310856547774) internal successors, (10268), 7682 states have internal predecessors, (10268), 0 states have call successors, (0), 0 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 00:25:30,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 10268 transitions. [2024-11-07 00:25:30,024 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 10268 transitions. Word has length 86 [2024-11-07 00:25:30,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:30,025 INFO L471 AbstractCegarLoop]: Abstraction has 7683 states and 10268 transitions. [2024-11-07 00:25:30,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 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 00:25:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 10268 transitions. [2024-11-07 00:25:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 00:25:30,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:30,032 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] [2024-11-07 00:25:30,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-07 00:25:30,033 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:30,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash -238941005, now seen corresponding path program 1 times [2024-11-07 00:25:30,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:30,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592907016] [2024-11-07 00:25:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:30,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:30,166 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 00:25:30,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:30,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592907016] [2024-11-07 00:25:30,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592907016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:30,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:30,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:30,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167920124] [2024-11-07 00:25:30,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:30,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:30,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:30,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:30,168 INFO L87 Difference]: Start difference. First operand 7683 states and 10268 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 00:25:30,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:30,235 INFO L93 Difference]: Finished difference Result 20423 states and 27516 transitions. [2024-11-07 00:25:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:30,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-07 00:25:30,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:30,257 INFO L225 Difference]: With dead ends: 20423 [2024-11-07 00:25:30,257 INFO L226 Difference]: Without dead ends: 13801 [2024-11-07 00:25:30,267 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 00:25:30,268 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 171 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:30,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 785 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13801 states. [2024-11-07 00:25:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13801 to 13319. [2024-11-07 00:25:30,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13319 states, 13318 states have (on average 1.3344345997897582) internal successors, (17772), 13318 states have internal predecessors, (17772), 0 states have call successors, (0), 0 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 00:25:30,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 17772 transitions. [2024-11-07 00:25:30,551 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 17772 transitions. Word has length 87 [2024-11-07 00:25:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:30,551 INFO L471 AbstractCegarLoop]: Abstraction has 13319 states and 17772 transitions. [2024-11-07 00:25:30,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 00:25:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 17772 transitions. [2024-11-07 00:25:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 00:25:30,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:30,557 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] [2024-11-07 00:25:30,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-07 00:25:30,557 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:30,558 INFO L85 PathProgramCache]: Analyzing trace with hash -951231946, now seen corresponding path program 1 times [2024-11-07 00:25:30,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:30,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154324743] [2024-11-07 00:25:30,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:30,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:30,642 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 00:25:30,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:30,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154324743] [2024-11-07 00:25:30,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154324743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:30,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:30,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:30,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012536288] [2024-11-07 00:25:30,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:30,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:30,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:30,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:30,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:30,645 INFO L87 Difference]: Start difference. First operand 13319 states and 17772 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 00:25:30,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:30,757 INFO L93 Difference]: Finished difference Result 35939 states and 48170 transitions. [2024-11-07 00:25:30,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:30,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-07 00:25:30,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:30,790 INFO L225 Difference]: With dead ends: 35939 [2024-11-07 00:25:30,791 INFO L226 Difference]: Without dead ends: 23681 [2024-11-07 00:25:30,807 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 00:25:30,808 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 152 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:30,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 780 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23681 states. [2024-11-07 00:25:31,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23681 to 21551. [2024-11-07 00:25:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21551 states, 21550 states have (on average 1.3316937354988398) internal successors, (28698), 21550 states have internal predecessors, (28698), 0 states have call successors, (0), 0 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 00:25:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21551 states to 21551 states and 28698 transitions. [2024-11-07 00:25:31,209 INFO L78 Accepts]: Start accepts. Automaton has 21551 states and 28698 transitions. Word has length 87 [2024-11-07 00:25:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:31,210 INFO L471 AbstractCegarLoop]: Abstraction has 21551 states and 28698 transitions. [2024-11-07 00:25:31,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 00:25:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 21551 states and 28698 transitions. [2024-11-07 00:25:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:25:31,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:31,217 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] [2024-11-07 00:25:31,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-07 00:25:31,218 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:31,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1516240729, now seen corresponding path program 1 times [2024-11-07 00:25:31,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225953658] [2024-11-07 00:25:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:31,342 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 00:25:31,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:31,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225953658] [2024-11-07 00:25:31,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225953658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:31,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:31,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:31,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404367603] [2024-11-07 00:25:31,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:31,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:31,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:31,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:31,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:31,344 INFO L87 Difference]: Start difference. First operand 21551 states and 28698 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 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 00:25:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:31,557 INFO L93 Difference]: Finished difference Result 60035 states and 79988 transitions. [2024-11-07 00:25:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-07 00:25:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:31,618 INFO L225 Difference]: With dead ends: 60035 [2024-11-07 00:25:31,618 INFO L226 Difference]: Without dead ends: 39545 [2024-11-07 00:25:31,645 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 00:25:31,646 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 134 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:31,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 771 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39545 states. [2024-11-07 00:25:32,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39545 to 35611. [2024-11-07 00:25:32,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35611 states, 35610 states have (on average 1.3235046335299074) internal successors, (47130), 35610 states have internal predecessors, (47130), 0 states have call successors, (0), 0 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 00:25:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35611 states to 35611 states and 47130 transitions. [2024-11-07 00:25:32,300 INFO L78 Accepts]: Start accepts. Automaton has 35611 states and 47130 transitions. Word has length 88 [2024-11-07 00:25:32,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:32,301 INFO L471 AbstractCegarLoop]: Abstraction has 35611 states and 47130 transitions. [2024-11-07 00:25:32,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 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 00:25:32,301 INFO L276 IsEmpty]: Start isEmpty. Operand 35611 states and 47130 transitions. [2024-11-07 00:25:32,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 00:25:32,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:32,315 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] [2024-11-07 00:25:32,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-07 00:25:32,316 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:32,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:32,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1059802897, now seen corresponding path program 1 times [2024-11-07 00:25:32,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:32,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057674866] [2024-11-07 00:25:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:32,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:32,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:25:32,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:32,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057674866] [2024-11-07 00:25:32,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057674866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:32,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:32,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:32,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673646462] [2024-11-07 00:25:32,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:32,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:32,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:32,620 INFO L87 Difference]: Start difference. First operand 35611 states and 47130 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:33,350 INFO L93 Difference]: Finished difference Result 101043 states and 133608 transitions. [2024-11-07 00:25:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-07 00:25:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:33,447 INFO L225 Difference]: With dead ends: 101043 [2024-11-07 00:25:33,447 INFO L226 Difference]: Without dead ends: 65158 [2024-11-07 00:25:33,466 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 00:25:33,466 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 102 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:33,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 766 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:25:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65158 states. [2024-11-07 00:25:34,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65158 to 59609. [2024-11-07 00:25:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59609 states, 59608 states have (on average 1.3106462219836263) internal successors, (78125), 59608 states have internal predecessors, (78125), 0 states have call successors, (0), 0 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 00:25:34,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59609 states to 59609 states and 78125 transitions. [2024-11-07 00:25:34,505 INFO L78 Accepts]: Start accepts. Automaton has 59609 states and 78125 transitions. Word has length 91 [2024-11-07 00:25:34,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:34,505 INFO L471 AbstractCegarLoop]: Abstraction has 59609 states and 78125 transitions. [2024-11-07 00:25:34,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:34,505 INFO L276 IsEmpty]: Start isEmpty. Operand 59609 states and 78125 transitions. [2024-11-07 00:25:34,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 00:25:34,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:34,509 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] [2024-11-07 00:25:34,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-07 00:25:34,509 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:34,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:34,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1224297681, now seen corresponding path program 1 times [2024-11-07 00:25:34,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:34,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281221942] [2024-11-07 00:25:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:34,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:34,873 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 00:25:34,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:34,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281221942] [2024-11-07 00:25:34,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281221942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:34,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:34,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:34,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445688495] [2024-11-07 00:25:34,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:34,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:25:34,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:34,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:25:34,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:34,875 INFO L87 Difference]: Start difference. First operand 59609 states and 78125 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 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 00:25:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:35,100 INFO L93 Difference]: Finished difference Result 64318 states and 84401 transitions. [2024-11-07 00:25:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:25:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-07 00:25:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:35,203 INFO L225 Difference]: With dead ends: 64318 [2024-11-07 00:25:35,203 INFO L226 Difference]: Without dead ends: 64313 [2024-11-07 00:25:35,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:35,229 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 0 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:35,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1900 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:35,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64313 states. [2024-11-07 00:25:36,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64313 to 64311. [2024-11-07 00:25:36,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64311 states, 64310 states have (on average 1.2878867983206344) internal successors, (82824), 64310 states have internal predecessors, (82824), 0 states have call successors, (0), 0 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 00:25:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64311 states to 64311 states and 82824 transitions. [2024-11-07 00:25:36,333 INFO L78 Accepts]: Start accepts. Automaton has 64311 states and 82824 transitions. Word has length 92 [2024-11-07 00:25:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:36,334 INFO L471 AbstractCegarLoop]: Abstraction has 64311 states and 82824 transitions. [2024-11-07 00:25:36,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 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 00:25:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 64311 states and 82824 transitions. [2024-11-07 00:25:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 00:25:36,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:36,340 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] [2024-11-07 00:25:36,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-07 00:25:36,340 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:36,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:36,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1147476022, now seen corresponding path program 1 times [2024-11-07 00:25:36,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:36,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373723393] [2024-11-07 00:25:36,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:36,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:36,410 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 00:25:36,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:36,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373723393] [2024-11-07 00:25:36,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373723393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:36,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:36,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:36,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349631660] [2024-11-07 00:25:36,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:36,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:36,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:36,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:36,412 INFO L87 Difference]: Start difference. First operand 64311 states and 82824 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:37,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:37,125 INFO L93 Difference]: Finished difference Result 160552 states and 205585 transitions. [2024-11-07 00:25:37,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-07 00:25:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:37,301 INFO L225 Difference]: With dead ends: 160552 [2024-11-07 00:25:37,301 INFO L226 Difference]: Without dead ends: 97109 [2024-11-07 00:25:37,359 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 00:25:37,359 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 264 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:37,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 597 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:37,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97109 states. [2024-11-07 00:25:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97109 to 96872. [2024-11-07 00:25:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96872 states, 96871 states have (on average 1.2663129316307253) internal successors, (122669), 96871 states have internal predecessors, (122669), 0 states have call successors, (0), 0 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 00:25:39,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96872 states to 96872 states and 122669 transitions. [2024-11-07 00:25:39,034 INFO L78 Accepts]: Start accepts. Automaton has 96872 states and 122669 transitions. Word has length 93 [2024-11-07 00:25:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:39,034 INFO L471 AbstractCegarLoop]: Abstraction has 96872 states and 122669 transitions. [2024-11-07 00:25:39,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 96872 states and 122669 transitions. [2024-11-07 00:25:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:25:39,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:39,041 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] [2024-11-07 00:25:39,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-07 00:25:39,041 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:39,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -414323174, now seen corresponding path program 1 times [2024-11-07 00:25:39,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:39,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797440478] [2024-11-07 00:25:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:39,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:39,186 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 00:25:39,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797440478] [2024-11-07 00:25:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797440478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:39,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:39,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347758575] [2024-11-07 00:25:39,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:39,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:25:39,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:39,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:25:39,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:39,192 INFO L87 Difference]: Start difference. First operand 96872 states and 122669 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:40,260 INFO L93 Difference]: Finished difference Result 169319 states and 215703 transitions. [2024-11-07 00:25:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:25:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:25:40,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:40,589 INFO L225 Difference]: With dead ends: 169319 [2024-11-07 00:25:40,589 INFO L226 Difference]: Without dead ends: 151101 [2024-11-07 00:25:40,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:40,645 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1361 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:40,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1335 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:25:40,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151101 states. [2024-11-07 00:25:42,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151101 to 114656. [2024-11-07 00:25:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114656 states, 114655 states have (on average 1.2651955867602809) internal successors, (145061), 114655 states have internal predecessors, (145061), 0 states have call successors, (0), 0 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 00:25:42,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114656 states to 114656 states and 145061 transitions. [2024-11-07 00:25:42,663 INFO L78 Accepts]: Start accepts. Automaton has 114656 states and 145061 transitions. Word has length 96 [2024-11-07 00:25:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:42,664 INFO L471 AbstractCegarLoop]: Abstraction has 114656 states and 145061 transitions. [2024-11-07 00:25:42,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 114656 states and 145061 transitions. [2024-11-07 00:25:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 00:25:42,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:42,668 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] [2024-11-07 00:25:42,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-07 00:25:42,669 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:42,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:42,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1871667339, now seen corresponding path program 1 times [2024-11-07 00:25:42,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:42,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165094226] [2024-11-07 00:25:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:42,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:42,775 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 00:25:42,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:42,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165094226] [2024-11-07 00:25:42,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165094226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:42,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:42,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:42,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136298946] [2024-11-07 00:25:42,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:42,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:25:42,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:42,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:25:42,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:42,777 INFO L87 Difference]: Start difference. First operand 114656 states and 145061 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:43,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:43,745 INFO L93 Difference]: Finished difference Result 175127 states and 222735 transitions. [2024-11-07 00:25:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:25:43,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-07 00:25:43,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:44,066 INFO L225 Difference]: With dead ends: 175127 [2024-11-07 00:25:44,066 INFO L226 Difference]: Without dead ends: 156909 [2024-11-07 00:25:44,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:44,146 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1377 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:44,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1309 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:25:44,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156909 states. [2024-11-07 00:25:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156909 to 132440. [2024-11-07 00:25:46,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132440 states, 132439 states have (on average 1.2643783175650678) internal successors, (167453), 132439 states have internal predecessors, (167453), 0 states have call successors, (0), 0 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 00:25:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132440 states to 132440 states and 167453 transitions. [2024-11-07 00:25:46,431 INFO L78 Accepts]: Start accepts. Automaton has 132440 states and 167453 transitions. Word has length 97 [2024-11-07 00:25:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:46,431 INFO L471 AbstractCegarLoop]: Abstraction has 132440 states and 167453 transitions. [2024-11-07 00:25:46,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 132440 states and 167453 transitions. [2024-11-07 00:25:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-07 00:25:46,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:46,436 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] [2024-11-07 00:25:46,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-07 00:25:46,436 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:46,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:46,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1221418981, now seen corresponding path program 1 times [2024-11-07 00:25:46,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:46,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128781534] [2024-11-07 00:25:46,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:46,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:46,490 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 00:25:46,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:46,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128781534] [2024-11-07 00:25:46,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128781534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:46,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:46,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:25:46,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821922813] [2024-11-07 00:25:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:46,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:25:46,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:46,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:25:46,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:25:46,491 INFO L87 Difference]: Start difference. First operand 132440 states and 167453 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:47,409 INFO L93 Difference]: Finished difference Result 177417 states and 223400 transitions. [2024-11-07 00:25:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:25:47,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-07 00:25:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:47,646 INFO L225 Difference]: With dead ends: 177417 [2024-11-07 00:25:47,646 INFO L226 Difference]: Without dead ends: 117534 [2024-11-07 00:25:47,695 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 00:25:47,699 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 242 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:47,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 807 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:25:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117534 states. [2024-11-07 00:25:49,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117534 to 117532. [2024-11-07 00:25:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117532 states, 117531 states have (on average 1.2517293309850168) internal successors, (147117), 117531 states have internal predecessors, (147117), 0 states have call successors, (0), 0 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 00:25:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117532 states to 117532 states and 147117 transitions. [2024-11-07 00:25:49,632 INFO L78 Accepts]: Start accepts. Automaton has 117532 states and 147117 transitions. Word has length 100 [2024-11-07 00:25:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:49,632 INFO L471 AbstractCegarLoop]: Abstraction has 117532 states and 147117 transitions. [2024-11-07 00:25:49,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 117532 states and 147117 transitions. [2024-11-07 00:25:49,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-07 00:25:49,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:49,638 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] [2024-11-07 00:25:49,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-07 00:25:49,638 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:49,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 460468827, now seen corresponding path program 1 times [2024-11-07 00:25:49,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:49,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631124496] [2024-11-07 00:25:49,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:49,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:50,215 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 00:25:50,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631124496] [2024-11-07 00:25:50,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631124496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:50,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:25:50,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:25:50,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752011391] [2024-11-07 00:25:50,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:50,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:25:50,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:50,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:25:50,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:25:50,219 INFO L87 Difference]: Start difference. First operand 117532 states and 147117 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:50,775 INFO L93 Difference]: Finished difference Result 173974 states and 219066 transitions. [2024-11-07 00:25:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:25:50,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-07 00:25:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:25:51,020 INFO L225 Difference]: With dead ends: 173974 [2024-11-07 00:25:51,020 INFO L226 Difference]: Without dead ends: 146324 [2024-11-07 00:25:51,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:25:51,092 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1388 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:25:51,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1278 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:25:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146324 states. [2024-11-07 00:25:52,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146324 to 136676. [2024-11-07 00:25:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136676 states, 136675 states have (on average 1.2501262118163528) internal successors, (170861), 136675 states have internal predecessors, (170861), 0 states have call successors, (0), 0 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 00:25:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136676 states to 136676 states and 170861 transitions. [2024-11-07 00:25:53,337 INFO L78 Accepts]: Start accepts. Automaton has 136676 states and 170861 transitions. Word has length 103 [2024-11-07 00:25:53,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:25:53,339 INFO L471 AbstractCegarLoop]: Abstraction has 136676 states and 170861 transitions. [2024-11-07 00:25:53,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:53,340 INFO L276 IsEmpty]: Start isEmpty. Operand 136676 states and 170861 transitions. [2024-11-07 00:25:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-07 00:25:53,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:25:53,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:25:53,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-07 00:25:53,362 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:25:53,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:25:53,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1394722692, now seen corresponding path program 1 times [2024-11-07 00:25:53,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:25:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015673998] [2024-11-07 00:25:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:25:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 00:25:53,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:25:53,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015673998] [2024-11-07 00:25:53,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015673998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:25:53,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301766609] [2024-11-07 00:25:53,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:25:53,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:25:53,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:25:53,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:25:53,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 00:25:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:25:53,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 00:25:53,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:25:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-07 00:25:54,317 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:25:54,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301766609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:25:54,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:25:54,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2024-11-07 00:25:54,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389690185] [2024-11-07 00:25:54,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:25:54,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:25:54,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:25:54,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:25:54,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:25:54,323 INFO L87 Difference]: Start difference. First operand 136676 states and 170861 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:25:56,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:25:56,382 INFO L93 Difference]: Finished difference Result 367933 states and 459683 transitions. [2024-11-07 00:25:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 00:25:56,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-07 00:25:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted.