./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.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', '5f06498eb80e802eba7f35e8b89bda4b42e6ab2a6a5c4854a4d889d75d8cafdd'] 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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.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 5f06498eb80e802eba7f35e8b89bda4b42e6ab2a6a5c4854a4d889d75d8cafdd --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:40:37,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:40:37,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:40:37,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:40:37,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:40:37,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:40:37,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:40:37,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:40:37,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:40:37,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:40:37,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:40:37,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:40:37,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:40:37,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:40:37,942 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:40:37,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:40:37,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:40:37,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:40:37,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:40:37,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:40:37,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:40:37,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:40:37,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:40:37,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:40:37,944 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 -> 5f06498eb80e802eba7f35e8b89bda4b42e6ab2a6a5c4854a4d889d75d8cafdd [2024-11-07 01:40:38,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:40:38,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:40:38,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:40:38,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:40:38,182 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:40:38,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-07 01:40:39,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:40:39,705 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:40:39,706 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-07 01:40:39,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8d9020724/f5c3b3eda43344eaa4dce0af70864118/FLAGfd02f3aad [2024-11-07 01:40:39,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8d9020724/f5c3b3eda43344eaa4dce0af70864118 [2024-11-07 01:40:39,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:40:39,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:40:39,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:40:39,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:40:39,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:40:39,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:39" (1/1) ... [2024-11-07 01:40:39,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e67abf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:39, skipping insertion in model container [2024-11-07 01:40:39,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:39" (1/1) ... [2024-11-07 01:40:40,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:40:40,307 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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c[26888,26901] [2024-11-07 01:40:40,334 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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c[28763,28776] [2024-11-07 01:40:40,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:40:40,725 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:40:40,758 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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c[26888,26901] [2024-11-07 01:40:40,760 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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c[28763,28776] [2024-11-07 01:40:41,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:40:41,029 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:40:41,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41 WrapperNode [2024-11-07 01:40:41,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:40:41,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:40:41,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:40:41,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:40:41,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,378 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5291 [2024-11-07 01:40:41,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:40:41,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:40:41,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:40:41,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:40:41,405 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,617 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 01:40:41,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:40:41,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:40:41,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:40:41,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:40:41,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (1/1) ... [2024-11-07 01:40:41,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:40:41,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:40:41,870 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 01:40:41,875 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 01:40:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:40:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:40:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:40:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:40:42,017 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:40:42,019 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:40:45,476 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-07 01:40:45,477 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:40:45,498 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:40:45,502 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 01:40:45,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:45 BoogieIcfgContainer [2024-11-07 01:40:45,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:40:45,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:40:45,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:40:45,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:40:45,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:40:39" (1/3) ... [2024-11-07 01:40:45,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1954a082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:40:45, skipping insertion in model container [2024-11-07 01:40:45,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:41" (2/3) ... [2024-11-07 01:40:45,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1954a082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:40:45, skipping insertion in model container [2024-11-07 01:40:45,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:45" (3/3) ... [2024-11-07 01:40:45,511 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-11-07 01:40:45,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:40:45,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:40:45,582 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:40:45,592 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;@3974b4d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:40:45,592 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:40:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 0 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 01:40:45,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-07 01:40:45,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:45,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:40:45,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:45,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1702967051, now seen corresponding path program 1 times [2024-11-07 01:40:45,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:45,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4045582] [2024-11-07 01:40:45,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:45,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:45,876 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 01:40:45,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:45,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4045582] [2024-11-07 01:40:45,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4045582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:45,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:45,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:40:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868199812] [2024-11-07 01:40:45,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:45,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:45,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:45,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:45,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:45,896 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 01:40:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:48,775 INFO L93 Difference]: Finished difference Result 2584 states and 4970 transitions. [2024-11-07 01:40:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:48,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2024-11-07 01:40:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:48,794 INFO L225 Difference]: With dead ends: 2584 [2024-11-07 01:40:48,795 INFO L226 Difference]: Without dead ends: 1634 [2024-11-07 01:40:48,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:40:48,800 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 1047 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:48,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 711 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-07 01:40:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-07 01:40:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-07 01:40:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.650735294117647) internal successors, (2694), 1633 states have internal predecessors, (2694), 0 states have call successors, (0), 0 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 01:40:48,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2694 transitions. [2024-11-07 01:40:48,885 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2694 transitions. Word has length 16 [2024-11-07 01:40:48,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:48,886 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2694 transitions. [2024-11-07 01:40:48,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 01:40:48,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2694 transitions. [2024-11-07 01:40:48,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-07 01:40:48,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:48,887 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] [2024-11-07 01:40:48,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:40:48,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:48,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2101780621, now seen corresponding path program 1 times [2024-11-07 01:40:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:48,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120381262] [2024-11-07 01:40:48,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:49,116 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 01:40:49,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:49,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120381262] [2024-11-07 01:40:49,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120381262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:49,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:49,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:40:49,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867400614] [2024-11-07 01:40:49,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:49,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:40:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:49,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:40:49,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:40:49,119 INFO L87 Difference]: Start difference. First operand 1634 states and 2694 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 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 01:40:49,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:49,190 INFO L93 Difference]: Finished difference Result 1700 states and 2798 transitions. [2024-11-07 01:40:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:40:49,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-07 01:40:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:49,196 INFO L225 Difference]: With dead ends: 1700 [2024-11-07 01:40:49,196 INFO L226 Difference]: Without dead ends: 1634 [2024-11-07 01:40:49,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:40:49,197 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:49,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-07 01:40:49,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-11-07 01:40:49,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.6133578431372548) internal successors, (2633), 1633 states have internal predecessors, (2633), 0 states have call successors, (0), 0 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 01:40:49,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2633 transitions. [2024-11-07 01:40:49,223 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2633 transitions. Word has length 30 [2024-11-07 01:40:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:49,224 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2633 transitions. [2024-11-07 01:40:49,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 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 01:40:49,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2633 transitions. [2024-11-07 01:40:49,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 01:40:49,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:49,226 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] [2024-11-07 01:40:49,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:40:49,226 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:49,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1434939668, now seen corresponding path program 1 times [2024-11-07 01:40:49,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:49,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116461590] [2024-11-07 01:40:49,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:49,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:40:49,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:49,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116461590] [2024-11-07 01:40:49,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116461590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:49,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:49,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:49,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103097174] [2024-11-07 01:40:49,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:49,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:49,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:49,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:49,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:49,376 INFO L87 Difference]: Start difference. First operand 1634 states and 2633 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 01:40:51,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:51,964 INFO L93 Difference]: Finished difference Result 4640 states and 7560 transitions. [2024-11-07 01:40:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:51,965 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 01:40:51,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:51,974 INFO L225 Difference]: With dead ends: 4640 [2024-11-07 01:40:51,975 INFO L226 Difference]: Without dead ends: 3136 [2024-11-07 01:40:51,976 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 01:40:51,977 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 753 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:51,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1491 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-07 01:40:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2024-11-07 01:40:52,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3136. [2024-11-07 01:40:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3134 states have (on average 1.5280791320995533) internal successors, (4789), 3135 states have internal predecessors, (4789), 0 states have call successors, (0), 0 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 01:40:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 4789 transitions. [2024-11-07 01:40:52,022 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 4789 transitions. Word has length 87 [2024-11-07 01:40:52,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:52,027 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 4789 transitions. [2024-11-07 01:40:52,027 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 01:40:52,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 4789 transitions. [2024-11-07 01:40:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:40:52,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:52,032 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, 1, 1, 1] [2024-11-07 01:40:52,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:40:52,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:52,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1651582301, now seen corresponding path program 1 times [2024-11-07 01:40:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:52,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484701836] [2024-11-07 01:40:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:52,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:40:52,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:52,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484701836] [2024-11-07 01:40:52,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484701836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:52,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:52,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 01:40:52,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379520414] [2024-11-07 01:40:52,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:52,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:40:52,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:52,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:40:52,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:40:52,362 INFO L87 Difference]: Start difference. First operand 3136 states and 4789 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 01:40:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:52,856 INFO L93 Difference]: Finished difference Result 4128 states and 6389 transitions. [2024-11-07 01:40:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 01:40:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-07 01:40:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:52,885 INFO L225 Difference]: With dead ends: 4128 [2024-11-07 01:40:52,886 INFO L226 Difference]: Without dead ends: 4066 [2024-11-07 01:40:52,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-07 01:40:52,890 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 13578 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13578 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:52,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13578 Valid, 5575 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:40:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2024-11-07 01:40:52,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 3196. [2024-11-07 01:40:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3194 states have (on average 1.5297432686286787) internal successors, (4886), 3195 states have internal predecessors, (4886), 0 states have call successors, (0), 0 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 01:40:53,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4886 transitions. [2024-11-07 01:40:53,020 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4886 transitions. Word has length 90 [2024-11-07 01:40:53,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:53,020 INFO L471 AbstractCegarLoop]: Abstraction has 3196 states and 4886 transitions. [2024-11-07 01:40:53,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 01:40:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4886 transitions. [2024-11-07 01:40:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:40:53,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:53,022 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] [2024-11-07 01:40:53,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:40:53,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:53,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:53,023 INFO L85 PathProgramCache]: Analyzing trace with hash 515371249, now seen corresponding path program 1 times [2024-11-07 01:40:53,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:53,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730282551] [2024-11-07 01:40:53,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:53,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:40:53,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:53,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730282551] [2024-11-07 01:40:53,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730282551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:53,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:53,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:40:53,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756203106] [2024-11-07 01:40:53,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:53,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:53,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:53,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:53,216 INFO L87 Difference]: Start difference. First operand 3196 states and 4886 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 01:40:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:55,470 INFO L93 Difference]: Finished difference Result 9206 states and 14125 transitions. [2024-11-07 01:40:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-07 01:40:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:55,490 INFO L225 Difference]: With dead ends: 9206 [2024-11-07 01:40:55,490 INFO L226 Difference]: Without dead ends: 6200 [2024-11-07 01:40:55,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:40:55,494 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 941 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:55,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 614 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 01:40:55,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6200 states. [2024-11-07 01:40:55,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6200 to 6200. [2024-11-07 01:40:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6200 states, 6198 states have (on average 1.3738302678283316) internal successors, (8515), 6199 states have internal predecessors, (8515), 0 states have call successors, (0), 0 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 01:40:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6200 states to 6200 states and 8515 transitions. [2024-11-07 01:40:55,566 INFO L78 Accepts]: Start accepts. Automaton has 6200 states and 8515 transitions. Word has length 90 [2024-11-07 01:40:55,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:55,567 INFO L471 AbstractCegarLoop]: Abstraction has 6200 states and 8515 transitions. [2024-11-07 01:40:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 01:40:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6200 states and 8515 transitions. [2024-11-07 01:40:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 01:40:55,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:55,569 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 01:40:55,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:40:55,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:55,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash 551619955, now seen corresponding path program 1 times [2024-11-07 01:40:55,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:55,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824203041] [2024-11-07 01:40:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:55,687 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 01:40:55,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:55,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824203041] [2024-11-07 01:40:55,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824203041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:55,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:55,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:55,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244847133] [2024-11-07 01:40:55,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:55,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:55,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:55,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:55,690 INFO L87 Difference]: Start difference. First operand 6200 states and 8515 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 01:40:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:55,727 INFO L93 Difference]: Finished difference Result 6433 states and 8890 transitions. [2024-11-07 01:40:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 01:40:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:55,742 INFO L225 Difference]: With dead ends: 6433 [2024-11-07 01:40:55,743 INFO L226 Difference]: Without dead ends: 6311 [2024-11-07 01:40:55,745 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 01:40:55,746 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:55,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2024-11-07 01:40:55,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 6307. [2024-11-07 01:40:55,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 6305 states have (on average 1.3774781919111816) internal successors, (8685), 6306 states have internal predecessors, (8685), 0 states have call successors, (0), 0 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 01:40:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 8685 transitions. [2024-11-07 01:40:55,871 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 8685 transitions. Word has length 92 [2024-11-07 01:40:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:55,871 INFO L471 AbstractCegarLoop]: Abstraction has 6307 states and 8685 transitions. [2024-11-07 01:40:55,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 01:40:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 8685 transitions. [2024-11-07 01:40:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 01:40:55,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:55,872 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 01:40:55,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:40:55,872 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:55,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 618113467, now seen corresponding path program 1 times [2024-11-07 01:40:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:55,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181674363] [2024-11-07 01:40:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:55,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:56,285 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 01:40:56,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:56,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181674363] [2024-11-07 01:40:56,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181674363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:56,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:56,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 01:40:56,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192056741] [2024-11-07 01:40:56,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:56,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:40:56,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:56,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:40:56,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:40:56,287 INFO L87 Difference]: Start difference. First operand 6307 states and 8685 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 01:40:56,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:56,629 INFO L93 Difference]: Finished difference Result 6538 states and 9053 transitions. [2024-11-07 01:40:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:40:56,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 01:40:56,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:56,679 INFO L225 Difference]: With dead ends: 6538 [2024-11-07 01:40:56,680 INFO L226 Difference]: Without dead ends: 6309 [2024-11-07 01:40:56,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:40:56,682 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 7629 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7629 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:56,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7629 Valid, 2281 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:40:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2024-11-07 01:40:56,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 6307. [2024-11-07 01:40:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 6305 states have (on average 1.3771609833465503) internal successors, (8683), 6306 states have internal predecessors, (8683), 0 states have call successors, (0), 0 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 01:40:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 8683 transitions. [2024-11-07 01:40:56,883 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 8683 transitions. Word has length 92 [2024-11-07 01:40:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:56,883 INFO L471 AbstractCegarLoop]: Abstraction has 6307 states and 8683 transitions. [2024-11-07 01:40:56,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 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 01:40:56,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 8683 transitions. [2024-11-07 01:40:56,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 01:40:56,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:56,885 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 01:40:56,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:40:56,886 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:56,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:56,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1566925479, now seen corresponding path program 1 times [2024-11-07 01:40:56,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:56,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762456113] [2024-11-07 01:40:56,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:56,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:57,243 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 01:40:57,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:57,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762456113] [2024-11-07 01:40:57,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762456113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:57,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:57,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:40:57,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344993187] [2024-11-07 01:40:57,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:57,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:40:57,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:40:57,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:40:57,246 INFO L87 Difference]: Start difference. First operand 6307 states and 8683 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 01:40:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:57,284 INFO L93 Difference]: Finished difference Result 6315 states and 8692 transitions. [2024-11-07 01:40:57,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:40:57,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 01:40:57,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:57,302 INFO L225 Difference]: With dead ends: 6315 [2024-11-07 01:40:57,302 INFO L226 Difference]: Without dead ends: 6313 [2024-11-07 01:40:57,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:40:57,305 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:57,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6313 states. [2024-11-07 01:40:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6313 to 6313. [2024-11-07 01:40:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6313 states, 6311 states have (on average 1.3766439549992078) internal successors, (8688), 6312 states have internal predecessors, (8688), 0 states have call successors, (0), 0 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 01:40:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 8688 transitions. [2024-11-07 01:40:57,373 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 8688 transitions. Word has length 93 [2024-11-07 01:40:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:57,373 INFO L471 AbstractCegarLoop]: Abstraction has 6313 states and 8688 transitions. [2024-11-07 01:40:57,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 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 01:40:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 8688 transitions. [2024-11-07 01:40:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:57,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:57,375 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] [2024-11-07 01:40:57,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:40:57,375 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:57,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:57,375 INFO L85 PathProgramCache]: Analyzing trace with hash -401487589, now seen corresponding path program 1 times [2024-11-07 01:40:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:57,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007178829] [2024-11-07 01:40:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:57,446 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 01:40:57,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:57,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007178829] [2024-11-07 01:40:57,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007178829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:57,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:57,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927186337] [2024-11-07 01:40:57,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:57,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:57,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:57,451 INFO L87 Difference]: Start difference. First operand 6313 states and 8688 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:57,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:57,490 INFO L93 Difference]: Finished difference Result 6767 states and 9400 transitions. [2024-11-07 01:40:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:57,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:57,501 INFO L225 Difference]: With dead ends: 6767 [2024-11-07 01:40:57,501 INFO L226 Difference]: Without dead ends: 6532 [2024-11-07 01:40:57,503 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 01:40:57,504 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:57,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:57,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2024-11-07 01:40:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 6530. [2024-11-07 01:40:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 6528 states have (on average 1.3825061274509804) internal successors, (9025), 6529 states have internal predecessors, (9025), 0 states have call successors, (0), 0 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 01:40:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 9025 transitions. [2024-11-07 01:40:57,599 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 9025 transitions. Word has length 94 [2024-11-07 01:40:57,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:57,600 INFO L471 AbstractCegarLoop]: Abstraction has 6530 states and 9025 transitions. [2024-11-07 01:40:57,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 9025 transitions. [2024-11-07 01:40:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:57,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:57,601 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] [2024-11-07 01:40:57,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:40:57,601 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:57,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:57,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581915, now seen corresponding path program 1 times [2024-11-07 01:40:57,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:57,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827430776] [2024-11-07 01:40:57,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:57,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:57,665 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 01:40:57,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:57,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827430776] [2024-11-07 01:40:57,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827430776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:57,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:57,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:57,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5478377] [2024-11-07 01:40:57,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:57,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:57,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:57,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:57,667 INFO L87 Difference]: Start difference. First operand 6530 states and 9025 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:57,710 INFO L93 Difference]: Finished difference Result 7402 states and 10383 transitions. [2024-11-07 01:40:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:57,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:57,720 INFO L225 Difference]: With dead ends: 7402 [2024-11-07 01:40:57,721 INFO L226 Difference]: Without dead ends: 6950 [2024-11-07 01:40:57,723 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 01:40:57,724 INFO L432 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:57,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:57,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6950 states. [2024-11-07 01:40:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6950 to 6948. [2024-11-07 01:40:57,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6948 states, 6946 states have (on average 1.3917362510797582) internal successors, (9667), 6947 states have internal predecessors, (9667), 0 states have call successors, (0), 0 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 01:40:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6948 states to 6948 states and 9667 transitions. [2024-11-07 01:40:57,798 INFO L78 Accepts]: Start accepts. Automaton has 6948 states and 9667 transitions. Word has length 94 [2024-11-07 01:40:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:57,799 INFO L471 AbstractCegarLoop]: Abstraction has 6948 states and 9667 transitions. [2024-11-07 01:40:57,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:57,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6948 states and 9667 transitions. [2024-11-07 01:40:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:57,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:57,800 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] [2024-11-07 01:40:57,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:40:57,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:57,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:57,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1967352859, now seen corresponding path program 1 times [2024-11-07 01:40:57,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:57,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305181697] [2024-11-07 01:40:57,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:57,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:57,864 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 01:40:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:57,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305181697] [2024-11-07 01:40:57,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305181697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:57,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:57,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867767155] [2024-11-07 01:40:57,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:57,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:57,866 INFO L87 Difference]: Start difference. First operand 6948 states and 9667 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:57,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:57,903 INFO L93 Difference]: Finished difference Result 8624 states and 12253 transitions. [2024-11-07 01:40:57,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:57,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:57,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:57,915 INFO L225 Difference]: With dead ends: 8624 [2024-11-07 01:40:57,915 INFO L226 Difference]: Without dead ends: 7754 [2024-11-07 01:40:57,919 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 01:40:57,919 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:57,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7754 states. [2024-11-07 01:40:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7754 to 7752. [2024-11-07 01:40:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7752 states, 7750 states have (on average 1.404774193548387) internal successors, (10887), 7751 states have internal predecessors, (10887), 0 states have call successors, (0), 0 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 01:40:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7752 states to 7752 states and 10887 transitions. [2024-11-07 01:40:58,078 INFO L78 Accepts]: Start accepts. Automaton has 7752 states and 10887 transitions. Word has length 94 [2024-11-07 01:40:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:58,079 INFO L471 AbstractCegarLoop]: Abstraction has 7752 states and 10887 transitions. [2024-11-07 01:40:58,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7752 states and 10887 transitions. [2024-11-07 01:40:58,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:58,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:58,080 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] [2024-11-07 01:40:58,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:40:58,080 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:58,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:58,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1089352421, now seen corresponding path program 1 times [2024-11-07 01:40:58,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:58,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032931875] [2024-11-07 01:40:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:58,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:58,145 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 01:40:58,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:58,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032931875] [2024-11-07 01:40:58,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032931875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:58,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:58,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:58,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312348541] [2024-11-07 01:40:58,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:58,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:58,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:58,146 INFO L87 Difference]: Start difference. First operand 7752 states and 10887 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:58,204 INFO L93 Difference]: Finished difference Result 10972 states and 15801 transitions. [2024-11-07 01:40:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:58,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:58,222 INFO L225 Difference]: With dead ends: 10972 [2024-11-07 01:40:58,222 INFO L226 Difference]: Without dead ends: 9298 [2024-11-07 01:40:58,226 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 01:40:58,227 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:58,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9298 states. [2024-11-07 01:40:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9298 to 9296. [2024-11-07 01:40:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9296 states, 9294 states have (on average 1.4201635463740048) internal successors, (13199), 9295 states have internal predecessors, (13199), 0 states have call successors, (0), 0 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 01:40:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9296 states to 9296 states and 13199 transitions. [2024-11-07 01:40:58,332 INFO L78 Accepts]: Start accepts. Automaton has 9296 states and 13199 transitions. Word has length 94 [2024-11-07 01:40:58,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:58,332 INFO L471 AbstractCegarLoop]: Abstraction has 9296 states and 13199 transitions. [2024-11-07 01:40:58,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 9296 states and 13199 transitions. [2024-11-07 01:40:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:58,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:58,333 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] [2024-11-07 01:40:58,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:40:58,333 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:58,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:58,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1523888357, now seen corresponding path program 1 times [2024-11-07 01:40:58,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:58,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493966198] [2024-11-07 01:40:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:58,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:58,390 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 01:40:58,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:58,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493966198] [2024-11-07 01:40:58,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493966198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:58,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:58,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:58,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920654240] [2024-11-07 01:40:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:58,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:58,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:58,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:58,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:58,392 INFO L87 Difference]: Start difference. First operand 9296 states and 13199 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:58,530 INFO L93 Difference]: Finished difference Result 15476 states and 22513 transitions. [2024-11-07 01:40:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:58,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:58,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:58,551 INFO L225 Difference]: With dead ends: 15476 [2024-11-07 01:40:58,551 INFO L226 Difference]: Without dead ends: 12258 [2024-11-07 01:40:58,557 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 01:40:58,558 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:58,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1784 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12258 states. [2024-11-07 01:40:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12258 to 12256. [2024-11-07 01:40:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12256 states, 12254 states have (on average 1.433572710951526) internal successors, (17567), 12255 states have internal predecessors, (17567), 0 states have call successors, (0), 0 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 01:40:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12256 states to 12256 states and 17567 transitions. [2024-11-07 01:40:58,793 INFO L78 Accepts]: Start accepts. Automaton has 12256 states and 17567 transitions. Word has length 94 [2024-11-07 01:40:58,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:58,794 INFO L471 AbstractCegarLoop]: Abstraction has 12256 states and 17567 transitions. [2024-11-07 01:40:58,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:58,794 INFO L276 IsEmpty]: Start isEmpty. Operand 12256 states and 17567 transitions. [2024-11-07 01:40:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:58,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:58,795 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] [2024-11-07 01:40:58,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:40:58,796 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:58,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash 990146075, now seen corresponding path program 1 times [2024-11-07 01:40:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778739604] [2024-11-07 01:40:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:58,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:58,879 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 01:40:58,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778739604] [2024-11-07 01:40:58,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778739604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:58,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:58,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:58,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179028488] [2024-11-07 01:40:58,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:58,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:58,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:58,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:58,881 INFO L87 Difference]: Start difference. First operand 12256 states and 17567 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:59,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:59,048 INFO L93 Difference]: Finished difference Result 24100 states and 35169 transitions. [2024-11-07 01:40:59,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:59,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:59,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:40:59,082 INFO L225 Difference]: With dead ends: 24100 [2024-11-07 01:40:59,082 INFO L226 Difference]: Without dead ends: 17922 [2024-11-07 01:40:59,092 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 01:40:59,093 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:40:59,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:40:59,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17922 states. [2024-11-07 01:40:59,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17922 to 17920. [2024-11-07 01:40:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17920 states, 17918 states have (on average 1.439390556981806) internal successors, (25791), 17919 states have internal predecessors, (25791), 0 states have call successors, (0), 0 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 01:40:59,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17920 states to 17920 states and 25791 transitions. [2024-11-07 01:40:59,481 INFO L78 Accepts]: Start accepts. Automaton has 17920 states and 25791 transitions. Word has length 94 [2024-11-07 01:40:59,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:40:59,482 INFO L471 AbstractCegarLoop]: Abstraction has 17920 states and 25791 transitions. [2024-11-07 01:40:59,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:59,482 INFO L276 IsEmpty]: Start isEmpty. Operand 17920 states and 25791 transitions. [2024-11-07 01:40:59,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 01:40:59,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:40:59,483 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] [2024-11-07 01:40:59,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:40:59,483 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:40:59,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:40:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1703496475, now seen corresponding path program 1 times [2024-11-07 01:40:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:40:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842647630] [2024-11-07 01:40:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:40:59,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:40:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:40:59,556 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 01:40:59,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:40:59,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842647630] [2024-11-07 01:40:59,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842647630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:40:59,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:40:59,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:40:59,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430074817] [2024-11-07 01:40:59,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:40:59,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:40:59,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:40:59,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:40:59,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:40:59,558 INFO L87 Difference]: Start difference. First operand 17920 states and 25791 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:40:59,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:40:59,984 INFO L93 Difference]: Finished difference Result 40580 states and 58945 transitions. [2024-11-07 01:40:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:40:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 01:40:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:41:00,063 INFO L225 Difference]: With dead ends: 40580 [2024-11-07 01:41:00,064 INFO L226 Difference]: Without dead ends: 28738 [2024-11-07 01:41:00,094 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 01:41:00,095 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:41:00,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:41:00,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28738 states. [2024-11-07 01:41:00,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28738 to 28736. [2024-11-07 01:41:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28736 states, 28734 states have (on average 1.4343634718452007) internal successors, (41215), 28735 states have internal predecessors, (41215), 0 states have call successors, (0), 0 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 01:41:00,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28736 states to 28736 states and 41215 transitions. [2024-11-07 01:41:00,786 INFO L78 Accepts]: Start accepts. Automaton has 28736 states and 41215 transitions. Word has length 94 [2024-11-07 01:41:00,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:41:00,787 INFO L471 AbstractCegarLoop]: Abstraction has 28736 states and 41215 transitions. [2024-11-07 01:41:00,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:41:00,787 INFO L276 IsEmpty]: Start isEmpty. Operand 28736 states and 41215 transitions. [2024-11-07 01:41:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 01:41:00,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:41:00,788 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 01:41:00,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:41:00,788 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:41:00,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:41:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1087415530, now seen corresponding path program 1 times [2024-11-07 01:41:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:41:00,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912555622] [2024-11-07 01:41:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:41:00,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:41:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:41:00,845 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 01:41:00,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:41:00,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912555622] [2024-11-07 01:41:00,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912555622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:41:00,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:41:00,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:41:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821964653] [2024-11-07 01:41:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:41:00,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:41:00,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:41:00,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:41:00,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:41:00,847 INFO L87 Difference]: Start difference. First operand 28736 states and 41215 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 01:41:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:41:01,256 INFO L93 Difference]: Finished difference Result 52295 states and 75781 transitions. [2024-11-07 01:41:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:41:01,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 01:41:01,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:41:01,320 INFO L225 Difference]: With dead ends: 52295 [2024-11-07 01:41:01,320 INFO L226 Difference]: Without dead ends: 39748 [2024-11-07 01:41:01,337 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 01:41:01,338 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:41:01,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:41:01,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39748 states. [2024-11-07 01:41:02,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39748 to 39746. [2024-11-07 01:41:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39746 states, 39744 states have (on average 1.433197463768116) internal successors, (56961), 39745 states have internal predecessors, (56961), 0 states have call successors, (0), 0 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 01:41:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39746 states to 39746 states and 56961 transitions. [2024-11-07 01:41:02,267 INFO L78 Accepts]: Start accepts. Automaton has 39746 states and 56961 transitions. Word has length 96 [2024-11-07 01:41:02,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:41:02,267 INFO L471 AbstractCegarLoop]: Abstraction has 39746 states and 56961 transitions. [2024-11-07 01:41:02,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 01:41:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 39746 states and 56961 transitions. [2024-11-07 01:41:02,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-07 01:41:02,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:41:02,268 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] [2024-11-07 01:41:02,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:41:02,268 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:41:02,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:41:02,268 INFO L85 PathProgramCache]: Analyzing trace with hash 888605509, now seen corresponding path program 1 times [2024-11-07 01:41:02,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:41:02,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393068148] [2024-11-07 01:41:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:41:02,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:41:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:41:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:41:02,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:41:02,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393068148] [2024-11-07 01:41:02,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393068148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:41:02,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:41:02,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:41:02,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732693598] [2024-11-07 01:41:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:41:02,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:41:02,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:41:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:41:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:41:02,341 INFO L87 Difference]: Start difference. First operand 39746 states and 56961 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 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 01:41:05,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:41:05,249 INFO L93 Difference]: Finished difference Result 51766 states and 73459 transitions. [2024-11-07 01:41:05,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:41:05,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 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 01:41:05,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:41:05,319 INFO L225 Difference]: With dead ends: 51766 [2024-11-07 01:41:05,319 INFO L226 Difference]: Without dead ends: 45756 [2024-11-07 01:41:05,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:41:05,335 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 1076 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:41:05,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 519 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-07 01:41:05,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45756 states. [2024-11-07 01:41:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45756 to 45003. [2024-11-07 01:41:06,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45003 states, 45001 states have (on average 1.403968800693318) internal successors, (63180), 45002 states have internal predecessors, (63180), 0 states have call successors, (0), 0 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 01:41:06,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45003 states to 45003 states and 63180 transitions. [2024-11-07 01:41:06,215 INFO L78 Accepts]: Start accepts. Automaton has 45003 states and 63180 transitions. Word has length 97 [2024-11-07 01:41:06,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:41:06,215 INFO L471 AbstractCegarLoop]: Abstraction has 45003 states and 63180 transitions. [2024-11-07 01:41:06,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 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 01:41:06,216 INFO L276 IsEmpty]: Start isEmpty. Operand 45003 states and 63180 transitions. [2024-11-07 01:41:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:41:06,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:41:06,217 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] [2024-11-07 01:41:06,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:41:06,217 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:41:06,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:41:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1568269233, now seen corresponding path program 1 times [2024-11-07 01:41:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:41:06,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985616026] [2024-11-07 01:41:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:41:06,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:41:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:41:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:41:06,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:41:06,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985616026] [2024-11-07 01:41:06,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985616026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:41:06,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:41:06,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:41:06,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69400367] [2024-11-07 01:41:06,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:41:06,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:41:06,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:41:06,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:41:06,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:41:06,289 INFO L87 Difference]: Start difference. First operand 45003 states and 63180 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 01:41:08,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:41:08,997 INFO L93 Difference]: Finished difference Result 67537 states and 92116 transitions. [2024-11-07 01:41:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:41:08,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-07 01:41:08,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:41:09,078 INFO L225 Difference]: With dead ends: 67537 [2024-11-07 01:41:09,079 INFO L226 Difference]: Without dead ends: 56270 [2024-11-07 01:41:09,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:41:09,097 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 881 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 3002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:41:09,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 858 Invalid, 3002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:41:09,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56270 states. [2024-11-07 01:41:09,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56270 to 56268. [2024-11-07 01:41:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56268 states, 56266 states have (on average 1.3434223154302776) internal successors, (75589), 56267 states have internal predecessors, (75589), 0 states have call successors, (0), 0 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 01:41:09,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56268 states to 56268 states and 75589 transitions. [2024-11-07 01:41:09,922 INFO L78 Accepts]: Start accepts. Automaton has 56268 states and 75589 transitions. Word has length 102 [2024-11-07 01:41:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:41:09,922 INFO L471 AbstractCegarLoop]: Abstraction has 56268 states and 75589 transitions. [2024-11-07 01:41:09,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 01:41:09,922 INFO L276 IsEmpty]: Start isEmpty. Operand 56268 states and 75589 transitions. [2024-11-07 01:41:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-07 01:41:09,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:41:09,930 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:41:09,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:41:09,930 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:41:09,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:41:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash 54573310, now seen corresponding path program 1 times [2024-11-07 01:41:09,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:41:09,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145604385] [2024-11-07 01:41:09,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:41:09,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:41:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:41:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:41:10,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:41:10,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145604385] [2024-11-07 01:41:10,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145604385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:41:10,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:41:10,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 01:41:10,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507030730] [2024-11-07 01:41:10,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:41:10,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:41:10,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:41:10,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:41:10,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:41:10,281 INFO L87 Difference]: Start difference. First operand 56268 states and 75589 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 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 01:41:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:41:14,155 INFO L93 Difference]: Finished difference Result 332382 states and 474190 transitions. [2024-11-07 01:41:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:41:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 01:41:14,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:41:14,577 INFO L225 Difference]: With dead ends: 332382 [2024-11-07 01:41:14,578 INFO L226 Difference]: Without dead ends: 298716 [2024-11-07 01:41:14,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:41:14,651 INFO L432 NwaCegarLoop]: 1706 mSDtfsCounter, 11836 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11836 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:41:14,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11836 Valid, 5009 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:41:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298716 states. [2024-11-07 01:41:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298716 to 89932. [2024-11-07 01:41:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89932 states, 89930 states have (on average 1.3771266540642721) internal successors, (123845), 89931 states have internal predecessors, (123845), 0 states have call successors, (0), 0 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 01:41:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89932 states to 89932 states and 123845 transitions. [2024-11-07 01:41:17,809 INFO L78 Accepts]: Start accepts. Automaton has 89932 states and 123845 transitions. Word has length 119 [2024-11-07 01:41:17,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:41:17,809 INFO L471 AbstractCegarLoop]: Abstraction has 89932 states and 123845 transitions. [2024-11-07 01:41:17,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 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 01:41:17,810 INFO L276 IsEmpty]: Start isEmpty. Operand 89932 states and 123845 transitions. [2024-11-07 01:41:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-07 01:41:17,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:41:17,815 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:41:17,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:41:17,816 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:41:17,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:41:17,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1996642814, now seen corresponding path program 1 times [2024-11-07 01:41:17,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:41:17,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763219645] [2024-11-07 01:41:17,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:41:17,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:41:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:41:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 01:41:18,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:41:18,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763219645] [2024-11-07 01:41:18,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763219645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:41:18,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:41:18,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 01:41:18,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063034759] [2024-11-07 01:41:18,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:41:18,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:41:18,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:41:18,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:41:18,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:41:18,011 INFO L87 Difference]: Start difference. First operand 89932 states and 123845 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 01:41:23,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:41:23,849 INFO L93 Difference]: Finished difference Result 366046 states and 522446 transitions. [2024-11-07 01:41:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:41:23,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 01:41:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:41:24,256 INFO L225 Difference]: With dead ends: 366046 [2024-11-07 01:41:24,257 INFO L226 Difference]: Without dead ends: 332380 [2024-11-07 01:41:24,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:41:24,330 INFO L432 NwaCegarLoop]: 1703 mSDtfsCounter, 11886 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11886 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:41:24,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11886 Valid, 4806 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:41:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332380 states. [2024-11-07 01:41:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332380 to 140492. [2024-11-07 01:41:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140492 states, 140490 states have (on average 1.3944693572496263) internal successors, (195909), 140491 states have internal predecessors, (195909), 0 states have call successors, (0), 0 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 01:41:28,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140492 states to 140492 states and 195909 transitions. [2024-11-07 01:41:28,992 INFO L78 Accepts]: Start accepts. Automaton has 140492 states and 195909 transitions. Word has length 119 [2024-11-07 01:41:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:41:28,992 INFO L471 AbstractCegarLoop]: Abstraction has 140492 states and 195909 transitions. [2024-11-07 01:41:28,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 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 01:41:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 140492 states and 195909 transitions. [2024-11-07 01:41:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-07 01:41:29,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:41:29,000 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:41:29,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:41:29,000 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:41:29,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:41:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1871553538, now seen corresponding path program 1 times [2024-11-07 01:41:29,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:41:29,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593748834] [2024-11-07 01:41:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:41:29,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:41:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:41:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 01:41:29,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:41:29,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593748834] [2024-11-07 01:41:29,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593748834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:41:29,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:41:29,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 01:41:29,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395499127] [2024-11-07 01:41:29,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:41:29,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 01:41:29,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:41:29,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 01:41:29,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:41:29,217 INFO L87 Difference]: Start difference. First operand 140492 states and 195909 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)