./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label04.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.5.ufo.BOUNDED-10.pals+Problem12_label04.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', 'e08e043468e5282f02e354e2c270afb93bc3c7e2c832eb66aa2f729b9359c6aa'] 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.5.ufo.BOUNDED-10.pals+Problem12_label04.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 e08e043468e5282f02e354e2c270afb93bc3c7e2c832eb66aa2f729b9359c6aa --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:31:27,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:31:27,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:31:27,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:31:27,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:31:27,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:31:27,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:31:27,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:31:27,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:31:27,321 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:31:27,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:31:27,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:31:27,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:31:27,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:31:27,323 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:31:27,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:31:27,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:31:27,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:31:27,325 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:31:27,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:31:27,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:31:27,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:31:27,326 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 -> e08e043468e5282f02e354e2c270afb93bc3c7e2c832eb66aa2f729b9359c6aa [2024-11-07 01:31:27,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:31:27,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:31:27,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:31:27,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:31:27,626 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:31:27,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label04.c [2024-11-07 01:31:28,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:31:29,416 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:31:29,417 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label04.c [2024-11-07 01:31:29,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1a6d5bcc6/a4632c2be9d8454fb0b69f968a39e633/FLAGe27976155 [2024-11-07 01:31:29,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1a6d5bcc6/a4632c2be9d8454fb0b69f968a39e633 [2024-11-07 01:31:29,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:31:29,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:31:29,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:31:29,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:31:29,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:31:29,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:29" (1/1) ... [2024-11-07 01:31:29,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f2123d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:29, skipping insertion in model container [2024-11-07 01:31:29,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:29" (1/1) ... [2024-11-07 01:31:29,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:31:29,897 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.5.ufo.BOUNDED-10.pals+Problem12_label04.c[11640,11653] [2024-11-07 01:31:29,959 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.5.ufo.BOUNDED-10.pals+Problem12_label04.c[18701,18714] [2024-11-07 01:31:30,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:31:30,473 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:31:30,509 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.5.ufo.BOUNDED-10.pals+Problem12_label04.c[11640,11653] [2024-11-07 01:31:30,522 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.5.ufo.BOUNDED-10.pals+Problem12_label04.c[18701,18714] [2024-11-07 01:31:30,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:31:30,893 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:31:30,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30 WrapperNode [2024-11-07 01:31:30,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:31:30,896 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:31:30,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:31:30,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:31:30,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:30,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,320 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5099 [2024-11-07 01:31:31,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:31:31,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:31:31,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:31:31,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:31:31,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,613 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 01:31:31,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:31,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:32,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:31:32,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:31:32,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:31:32,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:31:32,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (1/1) ... [2024-11-07 01:31:32,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:31:32,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:32,107 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 01:31:32,111 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 01:31:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:31:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:31:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:31:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:31:32,262 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:31:32,264 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:31:36,552 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-07 01:31:36,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:31:36,594 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:31:36,595 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 01:31:36,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:36 BoogieIcfgContainer [2024-11-07 01:31:36,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:31:36,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:31:36,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:31:36,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:31:36,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:31:29" (1/3) ... [2024-11-07 01:31:36,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e6d99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:36, skipping insertion in model container [2024-11-07 01:31:36,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:30" (2/3) ... [2024-11-07 01:31:36,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e6d99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:36, skipping insertion in model container [2024-11-07 01:31:36,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:36" (3/3) ... [2024-11-07 01:31:36,606 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label04.c [2024-11-07 01:31:36,619 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:31:36,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:31:36,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:31:36,707 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;@73e5f2a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:31:36,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:31:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 01:31:36,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:36,726 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] [2024-11-07 01:31:36,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:36,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1798739915, now seen corresponding path program 1 times [2024-11-07 01:31:36,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:36,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498084995] [2024-11-07 01:31:36,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:36,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:36,967 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 01:31:36,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:36,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498084995] [2024-11-07 01:31:36,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498084995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:36,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:36,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:31:36,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941010234] [2024-11-07 01:31:36,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:36,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 01:31:36,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 01:31:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 01:31:37,001 INFO L87 Difference]: Start difference. First operand has 899 states, 896 states have (on average 1.9051339285714286) internal successors, (1707), 898 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:37,083 INFO L93 Difference]: Finished difference Result 1761 states and 3344 transitions. [2024-11-07 01:31:37,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 01:31:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-07 01:31:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:37,101 INFO L225 Difference]: With dead ends: 1761 [2024-11-07 01:31:37,101 INFO L226 Difference]: Without dead ends: 833 [2024-11-07 01:31:37,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 01:31:37,112 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:37,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-07 01:31:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-07 01:31:37,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8941034897713598) internal successors, (1574), 832 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1574 transitions. [2024-11-07 01:31:37,198 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1574 transitions. Word has length 24 [2024-11-07 01:31:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:37,199 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1574 transitions. [2024-11-07 01:31:37,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1574 transitions. [2024-11-07 01:31:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 01:31:37,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:37,200 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] [2024-11-07 01:31:37,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:31:37,201 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:37,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:37,201 INFO L85 PathProgramCache]: Analyzing trace with hash 502082675, now seen corresponding path program 1 times [2024-11-07 01:31:37,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:37,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346328858] [2024-11-07 01:31:37,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:37,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:37,469 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 01:31:37,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:37,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346328858] [2024-11-07 01:31:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346328858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:37,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:37,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:31:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771434827] [2024-11-07 01:31:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:37,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:31:37,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:31:37,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:31:37,473 INFO L87 Difference]: Start difference. First operand 833 states and 1574 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:37,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:37,596 INFO L93 Difference]: Finished difference Result 879 states and 1645 transitions. [2024-11-07 01:31:37,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:31:37,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-07 01:31:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:37,601 INFO L225 Difference]: With dead ends: 879 [2024-11-07 01:31:37,601 INFO L226 Difference]: Without dead ends: 833 [2024-11-07 01:31:37,601 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 01:31:37,604 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 0 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:37,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6252 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2024-11-07 01:31:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2024-11-07 01:31:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 831 states have (on average 1.8567990373044525) internal successors, (1543), 832 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1543 transitions. [2024-11-07 01:31:37,632 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1543 transitions. Word has length 24 [2024-11-07 01:31:37,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:37,632 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1543 transitions. [2024-11-07 01:31:37,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1543 transitions. [2024-11-07 01:31:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 01:31:37,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:37,635 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] [2024-11-07 01:31:37,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:31:37,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:37,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:37,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1518044022, now seen corresponding path program 1 times [2024-11-07 01:31:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:37,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609356783] [2024-11-07 01:31:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:37,958 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 01:31:37,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:37,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609356783] [2024-11-07 01:31:37,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609356783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:37,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:37,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:37,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993045577] [2024-11-07 01:31:37,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:37,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:37,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:37,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:37,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:37,961 INFO L87 Difference]: Start difference. First operand 833 states and 1543 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:38,252 INFO L93 Difference]: Finished difference Result 1253 states and 2213 transitions. [2024-11-07 01:31:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:31:38,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-07 01:31:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:38,259 INFO L225 Difference]: With dead ends: 1253 [2024-11-07 01:31:38,260 INFO L226 Difference]: Without dead ends: 1211 [2024-11-07 01:31:38,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-07 01:31:38,263 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 7953 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7953 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:38,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7953 Valid, 2746 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-07 01:31:38,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 873. [2024-11-07 01:31:38,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 871 states have (on average 1.8450057405281286) internal successors, (1607), 872 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1607 transitions. [2024-11-07 01:31:38,295 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1607 transitions. Word has length 54 [2024-11-07 01:31:38,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:38,296 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1607 transitions. [2024-11-07 01:31:38,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1607 transitions. [2024-11-07 01:31:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:31:38,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:38,300 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] [2024-11-07 01:31:38,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:31:38,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:38,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash 32878714, now seen corresponding path program 1 times [2024-11-07 01:31:38,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:38,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207898255] [2024-11-07 01:31:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:38,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:38,425 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 01:31:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:38,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207898255] [2024-11-07 01:31:38,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207898255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:38,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:38,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351781817] [2024-11-07 01:31:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:38,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:38,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:38,427 INFO L87 Difference]: Start difference. First operand 873 states and 1607 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:38,466 INFO L93 Difference]: Finished difference Result 1026 states and 1850 transitions. [2024-11-07 01:31:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:38,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-07 01:31:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:38,472 INFO L225 Difference]: With dead ends: 1026 [2024-11-07 01:31:38,472 INFO L226 Difference]: Without dead ends: 944 [2024-11-07 01:31:38,473 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 01:31:38,474 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1482 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:38,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1603 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-07 01:31:38,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-07 01:31:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.824468085106383) internal successors, (1715), 941 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1715 transitions. [2024-11-07 01:31:38,503 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1715 transitions. Word has length 56 [2024-11-07 01:31:38,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:38,503 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1715 transitions. [2024-11-07 01:31:38,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:38,504 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1715 transitions. [2024-11-07 01:31:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:31:38,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:38,505 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] [2024-11-07 01:31:38,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:31:38,505 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:38,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:38,506 INFO L85 PathProgramCache]: Analyzing trace with hash 99372226, now seen corresponding path program 1 times [2024-11-07 01:31:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:38,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061595806] [2024-11-07 01:31:38,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:38,861 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 01:31:38,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:38,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061595806] [2024-11-07 01:31:38,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061595806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:38,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:38,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:38,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802092820] [2024-11-07 01:31:38,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:38,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:38,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:38,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:38,863 INFO L87 Difference]: Start difference. First operand 942 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:39,065 INFO L93 Difference]: Finished difference Result 1095 states and 1955 transitions. [2024-11-07 01:31:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:39,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-07 01:31:39,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:39,071 INFO L225 Difference]: With dead ends: 1095 [2024-11-07 01:31:39,071 INFO L226 Difference]: Without dead ends: 944 [2024-11-07 01:31:39,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:31:39,074 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 2994 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:39,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 1795 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:39,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-07 01:31:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 942. [2024-11-07 01:31:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 940 states have (on average 1.8223404255319149) internal successors, (1713), 941 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1713 transitions. [2024-11-07 01:31:39,103 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1713 transitions. Word has length 56 [2024-11-07 01:31:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:39,103 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1713 transitions. [2024-11-07 01:31:39,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1713 transitions. [2024-11-07 01:31:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 01:31:39,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:39,107 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] [2024-11-07 01:31:39,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:31:39,107 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:39,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1629151369, now seen corresponding path program 1 times [2024-11-07 01:31:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:39,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86242444] [2024-11-07 01:31:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:39,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:39,505 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 01:31:39,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:39,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86242444] [2024-11-07 01:31:39,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86242444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:39,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:39,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:31:39,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581997970] [2024-11-07 01:31:39,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:39,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:31:39,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:39,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:31:39,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:31:39,509 INFO L87 Difference]: Start difference. First operand 942 states and 1713 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:39,602 INFO L93 Difference]: Finished difference Result 950 states and 1722 transitions. [2024-11-07 01:31:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 01:31:39,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-07 01:31:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:39,608 INFO L225 Difference]: With dead ends: 950 [2024-11-07 01:31:39,608 INFO L226 Difference]: Without dead ends: 948 [2024-11-07 01:31:39,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:31:39,609 INFO L432 NwaCegarLoop]: 1537 mSDtfsCounter, 0 mSDsluCounter, 9209 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:39,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10746 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:39,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-07 01:31:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 948. [2024-11-07 01:31:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 946 states have (on average 1.8160676532769555) internal successors, (1718), 947 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1718 transitions. [2024-11-07 01:31:39,634 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1718 transitions. Word has length 57 [2024-11-07 01:31:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:39,635 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1718 transitions. [2024-11-07 01:31:39,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1718 transitions. [2024-11-07 01:31:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:39,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:39,636 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] [2024-11-07 01:31:39,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:31:39,636 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:39,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1409361730, now seen corresponding path program 1 times [2024-11-07 01:31:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:39,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143176973] [2024-11-07 01:31:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:39,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:39,708 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 01:31:39,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:39,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143176973] [2024-11-07 01:31:39,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143176973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:39,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:39,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:39,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120108199] [2024-11-07 01:31:39,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:39,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:39,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:39,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:39,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:39,711 INFO L87 Difference]: Start difference. First operand 948 states and 1718 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:39,742 INFO L93 Difference]: Finished difference Result 1118 states and 1979 transitions. [2024-11-07 01:31:39,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:39,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 01:31:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:39,748 INFO L225 Difference]: With dead ends: 1118 [2024-11-07 01:31:39,748 INFO L226 Difference]: Without dead ends: 1030 [2024-11-07 01:31:39,748 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 01:31:39,749 INFO L432 NwaCegarLoop]: 1595 mSDtfsCounter, 1496 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1663 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 01:31:39,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:39,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-07 01:31:39,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2024-11-07 01:31:39,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1026 states have (on average 1.7923976608187135) internal successors, (1839), 1027 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1839 transitions. [2024-11-07 01:31:39,775 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1839 transitions. Word has length 58 [2024-11-07 01:31:39,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:39,775 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1839 transitions. [2024-11-07 01:31:39,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1839 transitions. [2024-11-07 01:31:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:39,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:39,776 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] [2024-11-07 01:31:39,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:31:39,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:39,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1383487166, now seen corresponding path program 1 times [2024-11-07 01:31:39,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:39,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352821767] [2024-11-07 01:31:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:39,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:39,845 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 01:31:39,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:39,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352821767] [2024-11-07 01:31:39,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352821767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:39,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:39,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:39,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102990309] [2024-11-07 01:31:39,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:39,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:39,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:39,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:39,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:39,847 INFO L87 Difference]: Start difference. First operand 1028 states and 1839 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:39,881 INFO L93 Difference]: Finished difference Result 1474 states and 2519 transitions. [2024-11-07 01:31:39,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:39,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 01:31:39,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:39,889 INFO L225 Difference]: With dead ends: 1474 [2024-11-07 01:31:39,889 INFO L226 Difference]: Without dead ends: 1239 [2024-11-07 01:31:39,890 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 01:31:39,891 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 1492 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1663 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 01:31:39,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1663 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2024-11-07 01:31:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1237. [2024-11-07 01:31:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 1235 states have (on average 1.7417004048582996) internal successors, (2151), 1236 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2151 transitions. [2024-11-07 01:31:39,925 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2151 transitions. Word has length 58 [2024-11-07 01:31:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:39,925 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 2151 transitions. [2024-11-07 01:31:39,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2151 transitions. [2024-11-07 01:31:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:39,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:39,926 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] [2024-11-07 01:31:39,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:31:39,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:39,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:39,927 INFO L85 PathProgramCache]: Analyzing trace with hash 696011330, now seen corresponding path program 1 times [2024-11-07 01:31:39,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:39,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188596510] [2024-11-07 01:31:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:39,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:40,035 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 01:31:40,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:40,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188596510] [2024-11-07 01:31:40,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188596510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:40,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:40,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118012348] [2024-11-07 01:31:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:40,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:40,038 INFO L87 Difference]: Start difference. First operand 1237 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:40,070 INFO L93 Difference]: Finished difference Result 2077 states and 3413 transitions. [2024-11-07 01:31:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:40,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 01:31:40,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:40,078 INFO L225 Difference]: With dead ends: 2077 [2024-11-07 01:31:40,078 INFO L226 Difference]: Without dead ends: 1633 [2024-11-07 01:31:40,079 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 01:31:40,081 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 1490 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1665 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 01:31:40,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:40,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-07 01:31:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1631. [2024-11-07 01:31:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.6740331491712708) internal successors, (2727), 1630 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2727 transitions. [2024-11-07 01:31:40,128 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2727 transitions. Word has length 58 [2024-11-07 01:31:40,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:40,128 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2727 transitions. [2024-11-07 01:31:40,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2727 transitions. [2024-11-07 01:31:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:40,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:40,129 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] [2024-11-07 01:31:40,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:31:40,129 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:40,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1818023102, now seen corresponding path program 1 times [2024-11-07 01:31:40,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:40,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225931771] [2024-11-07 01:31:40,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:40,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:40,192 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 01:31:40,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225931771] [2024-11-07 01:31:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225931771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588082415] [2024-11-07 01:31:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:40,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:40,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:40,195 INFO L87 Difference]: Start difference. First operand 1631 states and 2727 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:40,243 INFO L93 Difference]: Finished difference Result 3211 states and 5057 transitions. [2024-11-07 01:31:40,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:40,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 01:31:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:40,253 INFO L225 Difference]: With dead ends: 3211 [2024-11-07 01:31:40,254 INFO L226 Difference]: Without dead ends: 2373 [2024-11-07 01:31:40,256 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 01:31:40,256 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 1488 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1667 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 01:31:40,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1667 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2024-11-07 01:31:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2371. [2024-11-07 01:31:40,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2369 states have (on average 1.5968763191219923) internal successors, (3783), 2370 states have internal predecessors, (3783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3783 transitions. [2024-11-07 01:31:40,321 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3783 transitions. Word has length 58 [2024-11-07 01:31:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:40,321 INFO L471 AbstractCegarLoop]: Abstraction has 2371 states and 3783 transitions. [2024-11-07 01:31:40,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3783 transitions. [2024-11-07 01:31:40,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:31:40,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:40,322 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] [2024-11-07 01:31:40,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:31:40,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:40,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:40,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1673218114, now seen corresponding path program 1 times [2024-11-07 01:31:40,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:40,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946085959] [2024-11-07 01:31:40,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:40,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:40,378 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 01:31:40,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:40,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946085959] [2024-11-07 01:31:40,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946085959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:40,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:40,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:40,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874495856] [2024-11-07 01:31:40,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:40,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:40,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:40,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:40,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:40,380 INFO L87 Difference]: Start difference. First operand 2371 states and 3783 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:40,444 INFO L93 Difference]: Finished difference Result 5335 states and 8057 transitions. [2024-11-07 01:31:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-07 01:31:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:40,461 INFO L225 Difference]: With dead ends: 5335 [2024-11-07 01:31:40,461 INFO L226 Difference]: Without dead ends: 3757 [2024-11-07 01:31:40,465 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 01:31:40,466 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 1494 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1669 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 01:31:40,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2024-11-07 01:31:40,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3755. [2024-11-07 01:31:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3753 states have (on average 1.5195843325339728) internal successors, (5703), 3754 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5703 transitions. [2024-11-07 01:31:40,564 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5703 transitions. Word has length 58 [2024-11-07 01:31:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:40,565 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 5703 transitions. [2024-11-07 01:31:40,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5703 transitions. [2024-11-07 01:31:40,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-07 01:31:40,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:40,567 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] [2024-11-07 01:31:40,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:31:40,568 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:40,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1949704738, now seen corresponding path program 1 times [2024-11-07 01:31:40,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:40,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348948271] [2024-11-07 01:31:40,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:40,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:40,632 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 01:31:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:40,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348948271] [2024-11-07 01:31:40,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348948271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:40,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:40,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:31:40,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108666901] [2024-11-07 01:31:40,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:40,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:40,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:40,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:40,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:40,634 INFO L87 Difference]: Start difference. First operand 3755 states and 5703 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:44,052 INFO L93 Difference]: Finished difference Result 5259 states and 8576 transitions. [2024-11-07 01:31:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:44,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-07 01:31:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:44,068 INFO L225 Difference]: With dead ends: 5259 [2024-11-07 01:31:44,068 INFO L226 Difference]: Without dead ends: 4506 [2024-11-07 01:31:44,070 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 01:31:44,070 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 858 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:44,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 181 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-07 01:31:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2024-11-07 01:31:44,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 4506. [2024-11-07 01:31:44,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4506 states, 4504 states have (on average 1.5714920071047958) internal successors, (7078), 4505 states have internal predecessors, (7078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 7078 transitions. [2024-11-07 01:31:44,171 INFO L78 Accepts]: Start accepts. Automaton has 4506 states and 7078 transitions. Word has length 61 [2024-11-07 01:31:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:44,171 INFO L471 AbstractCegarLoop]: Abstraction has 4506 states and 7078 transitions. [2024-11-07 01:31:44,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states and 7078 transitions. [2024-11-07 01:31:44,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:44,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:44,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:44,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:31:44,178 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:44,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:44,178 INFO L85 PathProgramCache]: Analyzing trace with hash 273219202, now seen corresponding path program 1 times [2024-11-07 01:31:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:44,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254171787] [2024-11-07 01:31:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:44,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:31:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:44,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254171787] [2024-11-07 01:31:44,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254171787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:44,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:44,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107891373] [2024-11-07 01:31:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:44,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:44,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:44,339 INFO L87 Difference]: Start difference. First operand 4506 states and 7078 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:44,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:44,636 INFO L93 Difference]: Finished difference Result 19110 states and 27884 transitions. [2024-11-07 01:31:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:44,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:31:44,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:44,690 INFO L225 Difference]: With dead ends: 19110 [2024-11-07 01:31:44,690 INFO L226 Difference]: Without dead ends: 16996 [2024-11-07 01:31:44,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:44,701 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6305 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6305 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:44,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6305 Valid, 3588 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16996 states. [2024-11-07 01:31:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16996 to 7050. [2024-11-07 01:31:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 7048 states have (on average 1.5127695800227015) internal successors, (10662), 7049 states have internal predecessors, (10662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:45,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 10662 transitions. [2024-11-07 01:31:45,230 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 10662 transitions. Word has length 77 [2024-11-07 01:31:45,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:45,230 INFO L471 AbstractCegarLoop]: Abstraction has 7050 states and 10662 transitions. [2024-11-07 01:31:45,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:45,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 10662 transitions. [2024-11-07 01:31:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:45,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:45,233 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:45,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:31:45,233 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:45,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:45,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1775337602, now seen corresponding path program 1 times [2024-11-07 01:31:45,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:45,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214370567] [2024-11-07 01:31:45,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:45,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 01:31:45,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:45,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214370567] [2024-11-07 01:31:45,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214370567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:45,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:45,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:45,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116297706] [2024-11-07 01:31:45,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:45,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:45,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:45,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:45,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:45,410 INFO L87 Difference]: Start difference. First operand 7050 states and 10662 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:45,790 INFO L93 Difference]: Finished difference Result 22070 states and 32076 transitions. [2024-11-07 01:31:45,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:45,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:31:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:45,828 INFO L225 Difference]: With dead ends: 22070 [2024-11-07 01:31:45,829 INFO L226 Difference]: Without dead ends: 19108 [2024-11-07 01:31:45,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:45,838 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6351 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6351 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:45,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6351 Valid, 3615 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19108 states. [2024-11-07 01:31:46,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19108 to 11066. [2024-11-07 01:31:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11066 states, 11064 states have (on average 1.4741503976861894) internal successors, (16310), 11065 states have internal predecessors, (16310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:46,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11066 states to 11066 states and 16310 transitions. [2024-11-07 01:31:46,152 INFO L78 Accepts]: Start accepts. Automaton has 11066 states and 16310 transitions. Word has length 77 [2024-11-07 01:31:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:46,152 INFO L471 AbstractCegarLoop]: Abstraction has 11066 states and 16310 transitions. [2024-11-07 01:31:46,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:46,152 INFO L276 IsEmpty]: Start isEmpty. Operand 11066 states and 16310 transitions. [2024-11-07 01:31:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:46,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:46,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:46,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:31:46,155 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:46,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash -440131198, now seen corresponding path program 1 times [2024-11-07 01:31:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:46,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39208649] [2024-11-07 01:31:46,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 01:31:46,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:46,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39208649] [2024-11-07 01:31:46,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39208649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:46,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:46,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:46,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213714090] [2024-11-07 01:31:46,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:46,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:46,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:46,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:46,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:46,353 INFO L87 Difference]: Start difference. First operand 11066 states and 16310 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:46,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:46,867 INFO L93 Difference]: Finished difference Result 25030 states and 36252 transitions. [2024-11-07 01:31:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:46,867 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:31:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:46,913 INFO L225 Difference]: With dead ends: 25030 [2024-11-07 01:31:46,914 INFO L226 Difference]: Without dead ends: 22068 [2024-11-07 01:31:46,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:46,927 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6397 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6397 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:46,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6397 Valid, 3578 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22068 states. [2024-11-07 01:31:47,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22068 to 14026. [2024-11-07 01:31:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14026 states, 14024 states have (on average 1.460781517398745) internal successors, (20486), 14025 states have internal predecessors, (20486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14026 states to 14026 states and 20486 transitions. [2024-11-07 01:31:47,348 INFO L78 Accepts]: Start accepts. Automaton has 14026 states and 20486 transitions. Word has length 77 [2024-11-07 01:31:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:47,348 INFO L471 AbstractCegarLoop]: Abstraction has 14026 states and 20486 transitions. [2024-11-07 01:31:47,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14026 states and 20486 transitions. [2024-11-07 01:31:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:47,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:47,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:47,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:31:47,352 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:47,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:47,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1340801666, now seen corresponding path program 1 times [2024-11-07 01:31:47,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:47,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857708564] [2024-11-07 01:31:47,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:47,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 01:31:47,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:47,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857708564] [2024-11-07 01:31:47,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857708564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:47,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:47,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:47,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383876632] [2024-11-07 01:31:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:47,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:47,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:47,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:47,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:47,510 INFO L87 Difference]: Start difference. First operand 14026 states and 20486 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:47,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:47,957 INFO L93 Difference]: Finished difference Result 27990 states and 40428 transitions. [2024-11-07 01:31:47,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:47,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:31:47,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:48,013 INFO L225 Difference]: With dead ends: 27990 [2024-11-07 01:31:48,013 INFO L226 Difference]: Without dead ends: 25028 [2024-11-07 01:31:48,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:48,024 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 6353 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3617 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:48,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3617 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:48,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25028 states. [2024-11-07 01:31:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25028 to 16986. [2024-11-07 01:31:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16986 states, 16984 states have (on average 1.4520725388601037) internal successors, (24662), 16985 states have internal predecessors, (24662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16986 states to 16986 states and 24662 transitions. [2024-11-07 01:31:48,401 INFO L78 Accepts]: Start accepts. Automaton has 16986 states and 24662 transitions. Word has length 77 [2024-11-07 01:31:48,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:48,402 INFO L471 AbstractCegarLoop]: Abstraction has 16986 states and 24662 transitions. [2024-11-07 01:31:48,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:48,402 INFO L276 IsEmpty]: Start isEmpty. Operand 16986 states and 24662 transitions. [2024-11-07 01:31:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:31:48,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:48,405 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:48,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:31:48,405 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:48,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 537075586, now seen corresponding path program 1 times [2024-11-07 01:31:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999008780] [2024-11-07 01:31:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:31:48,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:48,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999008780] [2024-11-07 01:31:48,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999008780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:48,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:48,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:31:48,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048377586] [2024-11-07 01:31:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:48,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:31:48,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:31:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:31:48,564 INFO L87 Difference]: Start difference. First operand 16986 states and 24662 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:49,052 INFO L93 Difference]: Finished difference Result 30950 states and 44604 transitions. [2024-11-07 01:31:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:31:49,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:31:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:49,112 INFO L225 Difference]: With dead ends: 30950 [2024-11-07 01:31:49,112 INFO L226 Difference]: Without dead ends: 27988 [2024-11-07 01:31:49,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:31:49,126 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 6307 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6307 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:49,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6307 Valid, 3698 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:31:49,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27988 states. [2024-11-07 01:31:49,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27988 to 19946. [2024-11-07 01:31:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.4459486562374648) internal successors, (28838), 19945 states have internal predecessors, (28838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28838 transitions. [2024-11-07 01:31:49,793 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28838 transitions. Word has length 77 [2024-11-07 01:31:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:49,793 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28838 transitions. [2024-11-07 01:31:49,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:49,794 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28838 transitions. [2024-11-07 01:31:49,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 01:31:49,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:49,797 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:49,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:31:49,798 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:49,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash 895246760, now seen corresponding path program 1 times [2024-11-07 01:31:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146154842] [2024-11-07 01:31:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:49,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:49,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:49,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146154842] [2024-11-07 01:31:49,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146154842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:49,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:49,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977147183] [2024-11-07 01:31:49,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:49,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:49,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:49,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:49,922 INFO L87 Difference]: Start difference. First operand 19946 states and 28838 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:50,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:50,409 INFO L93 Difference]: Finished difference Result 38350 states and 54824 transitions. [2024-11-07 01:31:50,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:50,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 01:31:50,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:50,459 INFO L225 Difference]: With dead ends: 38350 [2024-11-07 01:31:50,460 INFO L226 Difference]: Without dead ends: 19948 [2024-11-07 01:31:50,477 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 01:31:50,478 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 45 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:50,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:50,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2024-11-07 01:31:50,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19946. [2024-11-07 01:31:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19946 states, 19944 states have (on average 1.4311070998796631) internal successors, (28542), 19945 states have internal predecessors, (28542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19946 states to 19946 states and 28542 transitions. [2024-11-07 01:31:50,964 INFO L78 Accepts]: Start accepts. Automaton has 19946 states and 28542 transitions. Word has length 78 [2024-11-07 01:31:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:50,964 INFO L471 AbstractCegarLoop]: Abstraction has 19946 states and 28542 transitions. [2024-11-07 01:31:50,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:50,964 INFO L276 IsEmpty]: Start isEmpty. Operand 19946 states and 28542 transitions. [2024-11-07 01:31:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:31:50,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:50,968 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:50,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:31:50,968 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:50,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:50,969 INFO L85 PathProgramCache]: Analyzing trace with hash -615640646, now seen corresponding path program 1 times [2024-11-07 01:31:50,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:50,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716950651] [2024-11-07 01:31:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:51,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716950651] [2024-11-07 01:31:51,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716950651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:51,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:51,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807545621] [2024-11-07 01:31:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:51,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:51,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:51,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:51,054 INFO L87 Difference]: Start difference. First operand 19946 states and 28542 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:51,200 INFO L93 Difference]: Finished difference Result 26833 states and 38236 transitions. [2024-11-07 01:31:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-07 01:31:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:51,219 INFO L225 Difference]: With dead ends: 26833 [2024-11-07 01:31:51,220 INFO L226 Difference]: Without dead ends: 8431 [2024-11-07 01:31:51,239 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 01:31:51,240 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 39 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:51,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8431 states. [2024-11-07 01:31:51,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8431 to 8423. [2024-11-07 01:31:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 8421 states have (on average 1.4766654791592448) internal successors, (12435), 8422 states have internal predecessors, (12435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 12435 transitions. [2024-11-07 01:31:51,495 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 12435 transitions. Word has length 79 [2024-11-07 01:31:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:51,495 INFO L471 AbstractCegarLoop]: Abstraction has 8423 states and 12435 transitions. [2024-11-07 01:31:51,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,495 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 12435 transitions. [2024-11-07 01:31:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 01:31:51,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:51,498 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:51,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:31:51,498 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:51,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:51,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1683802150, now seen corresponding path program 1 times [2024-11-07 01:31:51,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:51,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207914489] [2024-11-07 01:31:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:51,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:51,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207914489] [2024-11-07 01:31:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207914489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:51,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:51,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:51,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918079175] [2024-11-07 01:31:51,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:51,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:51,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:51,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:51,586 INFO L87 Difference]: Start difference. First operand 8423 states and 12435 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:51,663 INFO L93 Difference]: Finished difference Result 11859 states and 17221 transitions. [2024-11-07 01:31:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:51,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-07 01:31:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:51,675 INFO L225 Difference]: With dead ends: 11859 [2024-11-07 01:31:51,675 INFO L226 Difference]: Without dead ends: 4993 [2024-11-07 01:31:51,684 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 01:31:51,685 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 41 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:51,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3084 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:51,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2024-11-07 01:31:51,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4991. [2024-11-07 01:31:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4989 states have (on average 1.5231509320505112) internal successors, (7599), 4990 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7599 transitions. [2024-11-07 01:31:51,788 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7599 transitions. Word has length 80 [2024-11-07 01:31:51,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:51,788 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7599 transitions. [2024-11-07 01:31:51,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7599 transitions. [2024-11-07 01:31:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 01:31:51,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:51,790 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] [2024-11-07 01:31:51,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:31:51,792 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:51,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:51,794 INFO L85 PathProgramCache]: Analyzing trace with hash 263472268, now seen corresponding path program 1 times [2024-11-07 01:31:51,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:51,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351005466] [2024-11-07 01:31:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:51,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:51,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:51,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351005466] [2024-11-07 01:31:51,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351005466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:51,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:51,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:51,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261339646] [2024-11-07 01:31:51,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:51,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:51,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:51,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:51,881 INFO L87 Difference]: Start difference. First operand 4991 states and 7599 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:51,929 INFO L93 Difference]: Finished difference Result 6711 states and 9967 transitions. [2024-11-07 01:31:51,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:51,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-07 01:31:51,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:51,937 INFO L225 Difference]: With dead ends: 6711 [2024-11-07 01:31:51,938 INFO L226 Difference]: Without dead ends: 3277 [2024-11-07 01:31:51,940 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 01:31:51,942 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 38 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:51,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3069 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:51,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2024-11-07 01:31:51,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3275. [2024-11-07 01:31:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3273 states have (on average 1.590895203177513) internal successors, (5207), 3274 states have internal predecessors, (5207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:51,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 5207 transitions. [2024-11-07 01:31:52,000 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 5207 transitions. Word has length 82 [2024-11-07 01:31:52,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:52,002 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 5207 transitions. [2024-11-07 01:31:52,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 5207 transitions. [2024-11-07 01:31:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:31:52,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:52,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:31:52,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:31:52,004 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:52,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1956730946, now seen corresponding path program 1 times [2024-11-07 01:31:52,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:52,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855445672] [2024-11-07 01:31:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:52,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855445672] [2024-11-07 01:31:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855445672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:31:52,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:31:52,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:31:52,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73751823] [2024-11-07 01:31:52,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:31:52,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:31:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:52,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:31:52,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:31:52,086 INFO L87 Difference]: Start difference. First operand 3275 states and 5207 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:52,123 INFO L93 Difference]: Finished difference Result 4137 states and 6379 transitions. [2024-11-07 01:31:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:31:52,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-07 01:31:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:52,130 INFO L225 Difference]: With dead ends: 4137 [2024-11-07 01:31:52,130 INFO L226 Difference]: Without dead ends: 2419 [2024-11-07 01:31:52,132 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 01:31:52,134 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 35 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:52,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:31:52,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2024-11-07 01:31:52,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2417. [2024-11-07 01:31:52,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2415 states have (on average 1.6662525879917185) internal successors, (4024), 2416 states have internal predecessors, (4024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 4024 transitions. [2024-11-07 01:31:52,172 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 4024 transitions. Word has length 84 [2024-11-07 01:31:52,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:52,172 INFO L471 AbstractCegarLoop]: Abstraction has 2417 states and 4024 transitions. [2024-11-07 01:31:52,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 4024 transitions. [2024-11-07 01:31:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 01:31:52,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:52,174 INFO L215 NwaCegarLoop]: trace histogram [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 01:31:52,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 01:31:52,174 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:52,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1389986160, now seen corresponding path program 1 times [2024-11-07 01:31:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:52,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798938572] [2024-11-07 01:31:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:52,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:31:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:52,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798938572] [2024-11-07 01:31:52,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798938572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:31:52,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648279015] [2024-11-07 01:31:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:52,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:52,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:52,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:31:52,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:31:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:52,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 01:31:52,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:31:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:52,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:31:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:53,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648279015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:31:53,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:31:53,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 20 [2024-11-07 01:31:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25601026] [2024-11-07 01:31:53,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:31:53,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 01:31:53,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:53,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 01:31:53,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-07 01:31:53,832 INFO L87 Difference]: Start difference. First operand 2417 states and 4024 transitions. Second operand has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:54,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:31:54,713 INFO L93 Difference]: Finished difference Result 5073 states and 7512 transitions. [2024-11-07 01:31:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 01:31:54,714 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 01:31:54,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:31:54,722 INFO L225 Difference]: With dead ends: 5073 [2024-11-07 01:31:54,722 INFO L226 Difference]: Without dead ends: 4213 [2024-11-07 01:31:54,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=394, Invalid=1246, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 01:31:54,725 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 15948 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15948 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:31:54,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15948 Valid, 4737 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:31:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4213 states. [2024-11-07 01:31:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4213 to 4033. [2024-11-07 01:31:54,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 4031 states have (on average 1.500868270900521) internal successors, (6050), 4032 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 6050 transitions. [2024-11-07 01:31:54,802 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 6050 transitions. Word has length 86 [2024-11-07 01:31:54,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:31:54,803 INFO L471 AbstractCegarLoop]: Abstraction has 4033 states and 6050 transitions. [2024-11-07 01:31:54,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 11.45) internal successors, (229), 20 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:31:54,803 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 6050 transitions. [2024-11-07 01:31:54,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 01:31:54,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:31:54,804 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:31:54,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 01:31:55,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-07 01:31:55,005 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:31:55,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:31:55,006 INFO L85 PathProgramCache]: Analyzing trace with hash -629409436, now seen corresponding path program 1 times [2024-11-07 01:31:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:31:55,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662935063] [2024-11-07 01:31:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:31:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:55,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:55,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:31:55,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662935063] [2024-11-07 01:31:55,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662935063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:31:55,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090816918] [2024-11-07 01:31:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:31:55,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:31:55,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:31:55,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:31:55,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:31:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:31:55,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 01:31:55,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:31:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:57,229 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:31:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:31:58,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090816918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:31:58,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:31:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 12] total 34 [2024-11-07 01:31:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62500296] [2024-11-07 01:31:58,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:31:58,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-07 01:31:58,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:31:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-07 01:31:58,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=932, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 01:31:58,655 INFO L87 Difference]: Start difference. First operand 4033 states and 6050 transitions. Second operand has 34 states, 34 states have (on average 6.5588235294117645) internal successors, (223), 34 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:00,411 INFO L93 Difference]: Finished difference Result 10941 states and 15063 transitions. [2024-11-07 01:32:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-07 01:32:00,412 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.5588235294117645) internal successors, (223), 34 states have internal predecessors, (223), 0 states have call successors, (0), 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 01:32:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:00,429 INFO L225 Difference]: With dead ends: 10941 [2024-11-07 01:32:00,429 INFO L226 Difference]: Without dead ends: 8644 [2024-11-07 01:32:00,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=938, Invalid=3222, Unknown=0, NotChecked=0, Total=4160 [2024-11-07 01:32:00,436 INFO L432 NwaCegarLoop]: 1531 mSDtfsCounter, 16120 mSDsluCounter, 9796 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16120 SdHoareTripleChecker+Valid, 11327 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:00,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16120 Valid, 11327 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:32:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2024-11-07 01:32:00,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8478. [2024-11-07 01:32:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8478 states, 8476 states have (on average 1.389806512505899) internal successors, (11780), 8477 states have internal predecessors, (11780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8478 states to 8478 states and 11780 transitions. [2024-11-07 01:32:00,655 INFO L78 Accepts]: Start accepts. Automaton has 8478 states and 11780 transitions. Word has length 87 [2024-11-07 01:32:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:00,655 INFO L471 AbstractCegarLoop]: Abstraction has 8478 states and 11780 transitions. [2024-11-07 01:32:00,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.5588235294117645) internal successors, (223), 34 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8478 states and 11780 transitions. [2024-11-07 01:32:00,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 01:32:00,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:00,657 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 01:32:00,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 01:32:00,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:00,857 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:00,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:00,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1667542172, now seen corresponding path program 1 times [2024-11-07 01:32:00,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:00,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120394483] [2024-11-07 01:32:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:00,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:01,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120394483] [2024-11-07 01:32:01,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120394483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417395440] [2024-11-07 01:32:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:01,624 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:32:01,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:32:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:01,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 01:32:01,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:32:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:02,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:32:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:02,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417395440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:32:02,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:32:02,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-07 01:32:02,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565316452] [2024-11-07 01:32:02,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:32:02,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 01:32:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:02,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 01:32:02,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2024-11-07 01:32:02,956 INFO L87 Difference]: Start difference. First operand 8478 states and 11780 transitions. Second operand has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 27 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:05,117 INFO L93 Difference]: Finished difference Result 37390 states and 49285 transitions. [2024-11-07 01:32:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 01:32:05,117 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 27 states have internal predecessors, (221), 0 states have call successors, (0), 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 01:32:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:05,165 INFO L225 Difference]: With dead ends: 37390 [2024-11-07 01:32:05,165 INFO L226 Difference]: Without dead ends: 31169 [2024-11-07 01:32:05,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=651, Invalid=2541, Unknown=0, NotChecked=0, Total=3192 [2024-11-07 01:32:05,184 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 17617 mSDsluCounter, 7993 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17617 SdHoareTripleChecker+Valid, 9501 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:05,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17617 Valid, 9501 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:32:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31169 states. [2024-11-07 01:32:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31169 to 28659. [2024-11-07 01:32:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28659 states, 28657 states have (on average 1.3117562899117143) internal successors, (37591), 28658 states have internal predecessors, (37591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28659 states to 28659 states and 37591 transitions. [2024-11-07 01:32:05,965 INFO L78 Accepts]: Start accepts. Automaton has 28659 states and 37591 transitions. Word has length 87 [2024-11-07 01:32:05,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:05,966 INFO L471 AbstractCegarLoop]: Abstraction has 28659 states and 37591 transitions. [2024-11-07 01:32:05,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.892857142857143) internal successors, (221), 27 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:05,966 INFO L276 IsEmpty]: Start isEmpty. Operand 28659 states and 37591 transitions. [2024-11-07 01:32:05,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 01:32:05,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:05,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:32:05,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 01:32:06,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:06,168 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:06,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1475314030, now seen corresponding path program 1 times [2024-11-07 01:32:06,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:06,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554712885] [2024-11-07 01:32:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:06,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:06,487 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:06,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:06,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554712885] [2024-11-07 01:32:06,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554712885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:06,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546136061] [2024-11-07 01:32:06,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:06,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:06,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:06,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:32:06,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:32:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:06,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 01:32:06,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:32:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:06,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:32:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546136061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:32:07,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:32:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-07 01:32:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569029397] [2024-11-07 01:32:07,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:32:07,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 01:32:07,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:07,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 01:32:07,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-07 01:32:07,681 INFO L87 Difference]: Start difference. First operand 28659 states and 37591 transitions. Second operand has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:09,989 INFO L93 Difference]: Finished difference Result 84035 states and 109082 transitions. [2024-11-07 01:32:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-07 01:32:09,989 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 01:32:09,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:10,049 INFO L225 Difference]: With dead ends: 84035 [2024-11-07 01:32:10,049 INFO L226 Difference]: Without dead ends: 57740 [2024-11-07 01:32:10,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=677, Invalid=2515, Unknown=0, NotChecked=0, Total=3192 [2024-11-07 01:32:10,064 INFO L432 NwaCegarLoop]: 1534 mSDtfsCounter, 15869 mSDsluCounter, 5372 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15869 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:10,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15869 Valid, 6906 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:32:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57740 states. [2024-11-07 01:32:11,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57740 to 54296. [2024-11-07 01:32:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54296 states, 54294 states have (on average 1.2767893321545658) internal successors, (69322), 54295 states have internal predecessors, (69322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:11,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54296 states to 54296 states and 69322 transitions. [2024-11-07 01:32:11,367 INFO L78 Accepts]: Start accepts. Automaton has 54296 states and 69322 transitions. Word has length 88 [2024-11-07 01:32:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:11,367 INFO L471 AbstractCegarLoop]: Abstraction has 54296 states and 69322 transitions. [2024-11-07 01:32:11,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 54296 states and 69322 transitions. [2024-11-07 01:32:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:32:11,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:11,369 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:32:11,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 01:32:11,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-07 01:32:11,570 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:11,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:11,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1712352226, now seen corresponding path program 1 times [2024-11-07 01:32:11,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:11,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807472176] [2024-11-07 01:32:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807472176] [2024-11-07 01:32:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807472176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637715682] [2024-11-07 01:32:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:15,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:15,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:15,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:32:15,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 01:32:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:15,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-07 01:32:15,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:32:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:16,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:32:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637715682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:32:17,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:32:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 12, 12] total 52 [2024-11-07 01:32:17,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744699284] [2024-11-07 01:32:17,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:32:17,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-07 01:32:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:17,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-07 01:32:17,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2466, Unknown=0, NotChecked=0, Total=2652 [2024-11-07 01:32:17,006 INFO L87 Difference]: Start difference. First operand 54296 states and 69322 transitions. Second operand has 52 states, 52 states have (on average 4.673076923076923) internal successors, (243), 52 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)