./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:26:00,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:26:00,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:26:00,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:26:00,819 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:26:00,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:26:00,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:26:00,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:26:00,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:26:00,840 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:26:00,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:26:00,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:26:00,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:26:00,841 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:26:00,841 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:26:00,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:26:00,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:26:00,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:26:00,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:26:00,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:26:00,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:26:00,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:26:00,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:26:00,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:26:00,847 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 -> f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386 [2024-11-07 00:26:01,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:26:01,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:26:01,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:26:01,170 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:26:01,170 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:26:01,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-07 00:26:02,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:26:03,490 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:26:03,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-07 00:26:03,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5b6c7a3a7/cf7aa0cd360642cd982718321fe72bee/FLAG32ac4e716 [2024-11-07 00:26:03,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5b6c7a3a7/cf7aa0cd360642cd982718321fe72bee [2024-11-07 00:26:03,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:26:03,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:26:03,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:26:03,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:26:03,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:26:03,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:26:03" (1/1) ... [2024-11-07 00:26:03,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7142c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:03, skipping insertion in model container [2024-11-07 00:26:03,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:26:03" (1/1) ... [2024-11-07 00:26:03,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:26:04,331 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2024-11-07 00:26:05,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:26:05,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:26:05,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2024-11-07 00:26:06,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:26:06,242 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:26:06,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06 WrapperNode [2024-11-07 00:26:06,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:26:06,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:26:06,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:26:06,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:26:06,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:06,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:06,805 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21783 [2024-11-07 00:26:06,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:26:06,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:26:06,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:26:06,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:26:06,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:06,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:06,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,130 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 00:26:07,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:26:07,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:26:07,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:26:07,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:26:07,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (1/1) ... [2024-11-07 00:26:07,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:26:07,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:26:07,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 00:26:07,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 00:26:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:26:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:26:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:26:07,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:26:08,306 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:26:08,309 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:26:16,814 INFO L? ?]: Removed 3503 outVars from TransFormulas that were not future-live. [2024-11-07 00:26:16,815 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:26:16,896 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:26:16,896 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:26:16,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:26:16 BoogieIcfgContainer [2024-11-07 00:26:16,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:26:16,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:26:16,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:26:16,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:26:16,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:26:03" (1/3) ... [2024-11-07 00:26:16,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4492fa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:26:16, skipping insertion in model container [2024-11-07 00:26:16,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:06" (2/3) ... [2024-11-07 00:26:16,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4492fa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:26:16, skipping insertion in model container [2024-11-07 00:26:16,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:26:16" (3/3) ... [2024-11-07 00:26:16,913 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-07 00:26:16,928 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:26:16,928 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:26:17,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:26:17,062 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;@ad648e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:26:17,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:26:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 2875 states, 2873 states have (on average 1.9070657848938393) internal successors, (5479), 2874 states have internal predecessors, (5479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 00:26:17,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:17,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:17,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:17,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:17,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1826416770, now seen corresponding path program 1 times [2024-11-07 00:26:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:17,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880302861] [2024-11-07 00:26:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:18,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:18,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880302861] [2024-11-07 00:26:18,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880302861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:18,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:18,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377762766] [2024-11-07 00:26:18,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:18,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:18,124 INFO L87 Difference]: Start difference. First operand has 2875 states, 2873 states have (on average 1.9070657848938393) internal successors, (5479), 2874 states have internal predecessors, (5479), 0 states have call successors, (0), 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 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:19,790 INFO L93 Difference]: Finished difference Result 4287 states and 8058 transitions. [2024-11-07 00:26:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:19,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-07 00:26:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:19,828 INFO L225 Difference]: With dead ends: 4287 [2024-11-07 00:26:19,829 INFO L226 Difference]: Without dead ends: 2275 [2024-11-07 00:26:19,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:19,844 INFO L432 NwaCegarLoop]: 2669 mSDtfsCounter, 12323 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12323 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:19,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12323 Valid, 2934 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 00:26:19,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-07 00:26:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2273. [2024-11-07 00:26:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 2272 states have (on average 1.3036971830985915) internal successors, (2962), 2272 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2962 transitions. [2024-11-07 00:26:20,013 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2962 transitions. Word has length 79 [2024-11-07 00:26:20,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:20,013 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 2962 transitions. [2024-11-07 00:26:20,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:20,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2962 transitions. [2024-11-07 00:26:20,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:26:20,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:20,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:20,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:26:20,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:20,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:20,026 INFO L85 PathProgramCache]: Analyzing trace with hash -827934042, now seen corresponding path program 1 times [2024-11-07 00:26:20,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:20,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32927078] [2024-11-07 00:26:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:20,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:20,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:20,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32927078] [2024-11-07 00:26:20,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32927078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:20,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:20,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:20,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735314472] [2024-11-07 00:26:20,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:20,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:20,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:20,395 INFO L87 Difference]: Start difference. First operand 2273 states and 2962 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 00:26:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:21,759 INFO L93 Difference]: Finished difference Result 3401 states and 4500 transitions. [2024-11-07 00:26:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:21,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 00:26:21,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:21,772 INFO L225 Difference]: With dead ends: 3401 [2024-11-07 00:26:21,773 INFO L226 Difference]: Without dead ends: 2325 [2024-11-07 00:26:21,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:21,776 INFO L432 NwaCegarLoop]: 1277 mSDtfsCounter, 7031 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7031 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:21,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7031 Valid, 1437 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 00:26:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2024-11-07 00:26:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2323. [2024-11-07 00:26:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2323 states, 2322 states have (on average 1.2833763996554695) internal successors, (2980), 2322 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 2980 transitions. [2024-11-07 00:26:21,858 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 2980 transitions. Word has length 80 [2024-11-07 00:26:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:21,860 INFO L471 AbstractCegarLoop]: Abstraction has 2323 states and 2980 transitions. [2024-11-07 00:26:21,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 00:26:21,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 2980 transitions. [2024-11-07 00:26:21,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:26:21,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:21,867 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:21,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:26:21,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:21,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1046816380, now seen corresponding path program 1 times [2024-11-07 00:26:21,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:21,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84802428] [2024-11-07 00:26:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:22,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:22,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84802428] [2024-11-07 00:26:22,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84802428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:22,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:22,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:22,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083730466] [2024-11-07 00:26:22,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:22,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:22,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:22,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:22,209 INFO L87 Difference]: Start difference. First operand 2323 states and 2980 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 00:26:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:23,056 INFO L93 Difference]: Finished difference Result 4267 states and 5722 transitions. [2024-11-07 00:26:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:23,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 00:26:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:23,070 INFO L225 Difference]: With dead ends: 4267 [2024-11-07 00:26:23,070 INFO L226 Difference]: Without dead ends: 2479 [2024-11-07 00:26:23,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:23,080 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 5694 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:23,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 1263 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:26:23,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-11-07 00:26:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2477. [2024-11-07 00:26:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2476 states have (on average 1.3546042003231018) internal successors, (3354), 2476 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3354 transitions. [2024-11-07 00:26:23,149 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3354 transitions. Word has length 80 [2024-11-07 00:26:23,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:23,150 INFO L471 AbstractCegarLoop]: Abstraction has 2477 states and 3354 transitions. [2024-11-07 00:26:23,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 00:26:23,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3354 transitions. [2024-11-07 00:26:23,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:23,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:23,161 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:23,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:26:23,161 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:23,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1188468072, now seen corresponding path program 1 times [2024-11-07 00:26:23,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:23,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089777288] [2024-11-07 00:26:23,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:23,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:23,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:23,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089777288] [2024-11-07 00:26:23,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089777288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:23,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:23,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:23,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33937086] [2024-11-07 00:26:23,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:23,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:23,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:23,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:23,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:23,384 INFO L87 Difference]: Start difference. First operand 2477 states and 3354 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:23,443 INFO L93 Difference]: Finished difference Result 4757 states and 6608 transitions. [2024-11-07 00:26:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:23,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 00:26:23,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:23,457 INFO L225 Difference]: With dead ends: 4757 [2024-11-07 00:26:23,457 INFO L226 Difference]: Without dead ends: 3535 [2024-11-07 00:26:23,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:23,461 INFO L432 NwaCegarLoop]: 2277 mSDtfsCounter, 1446 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:23,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 3387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:23,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2024-11-07 00:26:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3529. [2024-11-07 00:26:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3529 states, 3528 states have (on average 1.344954648526077) internal successors, (4745), 3528 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4745 transitions. [2024-11-07 00:26:23,548 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4745 transitions. Word has length 81 [2024-11-07 00:26:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:23,548 INFO L471 AbstractCegarLoop]: Abstraction has 3529 states and 4745 transitions. [2024-11-07 00:26:23,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4745 transitions. [2024-11-07 00:26:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:23,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:23,555 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:23,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:26:23,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:23,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -861777195, now seen corresponding path program 1 times [2024-11-07 00:26:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:23,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712789509] [2024-11-07 00:26:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:23,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:23,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:23,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712789509] [2024-11-07 00:26:23,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712789509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:23,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:23,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:23,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983922318] [2024-11-07 00:26:23,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:23,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:23,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:23,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:23,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:23,817 INFO L87 Difference]: Start difference. First operand 3529 states and 4745 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:23,943 INFO L93 Difference]: Finished difference Result 6941 states and 9754 transitions. [2024-11-07 00:26:23,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 00:26:23,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:23,965 INFO L225 Difference]: With dead ends: 6941 [2024-11-07 00:26:23,965 INFO L226 Difference]: Without dead ends: 5113 [2024-11-07 00:26:23,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:23,971 INFO L432 NwaCegarLoop]: 1715 mSDtfsCounter, 884 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:23,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 2829 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:26:23,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2024-11-07 00:26:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 5111. [2024-11-07 00:26:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 1.3749510763209394) internal successors, (7026), 5110 states have internal predecessors, (7026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 7026 transitions. [2024-11-07 00:26:24,117 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 7026 transitions. Word has length 81 [2024-11-07 00:26:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:24,118 INFO L471 AbstractCegarLoop]: Abstraction has 5111 states and 7026 transitions. [2024-11-07 00:26:24,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 7026 transitions. [2024-11-07 00:26:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:24,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:24,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:24,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:26:24,128 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:24,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1403577995, now seen corresponding path program 1 times [2024-11-07 00:26:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460893474] [2024-11-07 00:26:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:24,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460893474] [2024-11-07 00:26:24,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460893474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:24,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:24,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:24,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665900089] [2024-11-07 00:26:24,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:24,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:24,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:24,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:24,328 INFO L87 Difference]: Start difference. First operand 5111 states and 7026 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:24,581 INFO L93 Difference]: Finished difference Result 9599 states and 13624 transitions. [2024-11-07 00:26:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:24,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 00:26:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:24,612 INFO L225 Difference]: With dead ends: 9599 [2024-11-07 00:26:24,613 INFO L226 Difference]: Without dead ends: 6958 [2024-11-07 00:26:24,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:24,622 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 921 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:24,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 2706 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:24,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6958 states. [2024-11-07 00:26:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6958 to 6944. [2024-11-07 00:26:24,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 6943 states have (on average 1.380671179605358) internal successors, (9586), 6943 states have internal predecessors, (9586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 9586 transitions. [2024-11-07 00:26:24,797 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 9586 transitions. Word has length 81 [2024-11-07 00:26:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:24,798 INFO L471 AbstractCegarLoop]: Abstraction has 6944 states and 9586 transitions. [2024-11-07 00:26:24,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 9586 transitions. [2024-11-07 00:26:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:24,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:24,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:24,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:26:24,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:24,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 620531610, now seen corresponding path program 1 times [2024-11-07 00:26:24,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:24,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562838405] [2024-11-07 00:26:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:24,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:24,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:24,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562838405] [2024-11-07 00:26:24,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562838405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:24,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:24,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:24,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260724801] [2024-11-07 00:26:24,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:24,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:24,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:24,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:24,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:24,969 INFO L87 Difference]: Start difference. First operand 6944 states and 9586 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:25,060 INFO L93 Difference]: Finished difference Result 17401 states and 24430 transitions. [2024-11-07 00:26:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:25,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 00:26:25,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:25,106 INFO L225 Difference]: With dead ends: 17401 [2024-11-07 00:26:25,106 INFO L226 Difference]: Without dead ends: 11984 [2024-11-07 00:26:25,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:25,118 INFO L432 NwaCegarLoop]: 2295 mSDtfsCounter, 1454 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:25,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 3402 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11984 states. [2024-11-07 00:26:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11984 to 11964. [2024-11-07 00:26:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11964 states, 11963 states have (on average 1.3820947922761848) internal successors, (16534), 11963 states have internal predecessors, (16534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11964 states to 11964 states and 16534 transitions. [2024-11-07 00:26:25,441 INFO L78 Accepts]: Start accepts. Automaton has 11964 states and 16534 transitions. Word has length 81 [2024-11-07 00:26:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:25,441 INFO L471 AbstractCegarLoop]: Abstraction has 11964 states and 16534 transitions. [2024-11-07 00:26:25,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 11964 states and 16534 transitions. [2024-11-07 00:26:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:25,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:25,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:25,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:26:25,460 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:25,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1891437418, now seen corresponding path program 1 times [2024-11-07 00:26:25,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:25,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143175725] [2024-11-07 00:26:25,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:25,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:25,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143175725] [2024-11-07 00:26:25,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143175725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:25,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:25,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:25,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595556542] [2024-11-07 00:26:25,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:25,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:25,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:25,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:25,709 INFO L87 Difference]: Start difference. First operand 11964 states and 16534 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:26,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:26,575 INFO L93 Difference]: Finished difference Result 25907 states and 36252 transitions. [2024-11-07 00:26:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:26,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 00:26:26,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:26,615 INFO L225 Difference]: With dead ends: 25907 [2024-11-07 00:26:26,616 INFO L226 Difference]: Without dead ends: 15207 [2024-11-07 00:26:26,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:26,635 INFO L432 NwaCegarLoop]: 862 mSDtfsCounter, 4751 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4751 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:26,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4751 Valid, 1055 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:26:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15207 states. [2024-11-07 00:26:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15207 to 15169. [2024-11-07 00:26:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15169 states, 15168 states have (on average 1.3897020042194093) internal successors, (21079), 15168 states have internal predecessors, (21079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15169 states to 15169 states and 21079 transitions. [2024-11-07 00:26:27,023 INFO L78 Accepts]: Start accepts. Automaton has 15169 states and 21079 transitions. Word has length 81 [2024-11-07 00:26:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:27,024 INFO L471 AbstractCegarLoop]: Abstraction has 15169 states and 21079 transitions. [2024-11-07 00:26:27,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 15169 states and 21079 transitions. [2024-11-07 00:26:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:27,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:27,041 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:27,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:26:27,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:27,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:27,042 INFO L85 PathProgramCache]: Analyzing trace with hash 58995152, now seen corresponding path program 1 times [2024-11-07 00:26:27,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:27,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128573486] [2024-11-07 00:26:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:27,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:27,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128573486] [2024-11-07 00:26:27,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128573486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:27,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:27,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:27,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393389915] [2024-11-07 00:26:27,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:27,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:27,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:27,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:27,295 INFO L87 Difference]: Start difference. First operand 15169 states and 21079 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 00:26:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:28,040 INFO L93 Difference]: Finished difference Result 39786 states and 56013 transitions. [2024-11-07 00:26:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:28,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 00:26:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:28,101 INFO L225 Difference]: With dead ends: 39786 [2024-11-07 00:26:28,101 INFO L226 Difference]: Without dead ends: 25296 [2024-11-07 00:26:28,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:28,128 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 4042 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4042 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:28,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4042 Valid, 919 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:26:28,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25296 states. [2024-11-07 00:26:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25296 to 25294. [2024-11-07 00:26:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25294 states, 25293 states have (on average 1.4033131696516823) internal successors, (35494), 25293 states have internal predecessors, (35494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25294 states to 25294 states and 35494 transitions. [2024-11-07 00:26:29,033 INFO L78 Accepts]: Start accepts. Automaton has 25294 states and 35494 transitions. Word has length 82 [2024-11-07 00:26:29,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:29,036 INFO L471 AbstractCegarLoop]: Abstraction has 25294 states and 35494 transitions. [2024-11-07 00:26:29,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 00:26:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 25294 states and 35494 transitions. [2024-11-07 00:26:29,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 00:26:29,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:29,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:29,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:26:29,088 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:29,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:29,089 INFO L85 PathProgramCache]: Analyzing trace with hash 261572518, now seen corresponding path program 1 times [2024-11-07 00:26:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:29,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705879867] [2024-11-07 00:26:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:29,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:29,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705879867] [2024-11-07 00:26:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705879867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:29,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:29,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:29,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912742046] [2024-11-07 00:26:29,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:29,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:29,275 INFO L87 Difference]: Start difference. First operand 25294 states and 35494 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:29,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:29,496 INFO L93 Difference]: Finished difference Result 56418 states and 79527 transitions. [2024-11-07 00:26:29,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:29,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-07 00:26:29,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:29,557 INFO L225 Difference]: With dead ends: 56418 [2024-11-07 00:26:29,557 INFO L226 Difference]: Without dead ends: 35280 [2024-11-07 00:26:29,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:29,594 INFO L432 NwaCegarLoop]: 1468 mSDtfsCounter, 891 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:29,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 2315 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:29,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35280 states. [2024-11-07 00:26:30,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35280 to 35170. [2024-11-07 00:26:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35170 states, 35169 states have (on average 1.3829793283857943) internal successors, (48638), 35169 states have internal predecessors, (48638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35170 states to 35170 states and 48638 transitions. [2024-11-07 00:26:30,582 INFO L78 Accepts]: Start accepts. Automaton has 35170 states and 48638 transitions. Word has length 83 [2024-11-07 00:26:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:30,582 INFO L471 AbstractCegarLoop]: Abstraction has 35170 states and 48638 transitions. [2024-11-07 00:26:30,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:30,582 INFO L276 IsEmpty]: Start isEmpty. Operand 35170 states and 48638 transitions. [2024-11-07 00:26:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:30,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:30,619 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:30,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:26:30,620 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:30,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:30,620 INFO L85 PathProgramCache]: Analyzing trace with hash 909961113, now seen corresponding path program 1 times [2024-11-07 00:26:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454763949] [2024-11-07 00:26:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:30,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:30,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:30,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454763949] [2024-11-07 00:26:30,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454763949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:30,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:30,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:30,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236492437] [2024-11-07 00:26:30,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:30,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:30,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:30,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:30,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:30,884 INFO L87 Difference]: Start difference. First operand 35170 states and 48638 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:32,267 INFO L93 Difference]: Finished difference Result 75825 states and 105668 transitions. [2024-11-07 00:26:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:32,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:32,479 INFO L225 Difference]: With dead ends: 75825 [2024-11-07 00:26:32,479 INFO L226 Difference]: Without dead ends: 58650 [2024-11-07 00:26:32,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:32,523 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 4693 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:32,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4693 Valid, 1723 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 00:26:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58650 states. [2024-11-07 00:26:33,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58650 to 35226. [2024-11-07 00:26:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35226 states, 35225 states have (on average 1.3828246983676367) internal successors, (48710), 35225 states have internal predecessors, (48710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:33,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35226 states to 35226 states and 48710 transitions. [2024-11-07 00:26:33,618 INFO L78 Accepts]: Start accepts. Automaton has 35226 states and 48710 transitions. Word has length 84 [2024-11-07 00:26:33,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:33,619 INFO L471 AbstractCegarLoop]: Abstraction has 35226 states and 48710 transitions. [2024-11-07 00:26:33,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:33,619 INFO L276 IsEmpty]: Start isEmpty. Operand 35226 states and 48710 transitions. [2024-11-07 00:26:33,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:33,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:33,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:33,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:26:33,643 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:33,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:33,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1929393516, now seen corresponding path program 1 times [2024-11-07 00:26:33,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:33,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808515224] [2024-11-07 00:26:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:33,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:33,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808515224] [2024-11-07 00:26:33,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808515224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:33,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:33,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949025229] [2024-11-07 00:26:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:33,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:33,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:33,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:33,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:33,926 INFO L87 Difference]: Start difference. First operand 35226 states and 48710 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:35,357 INFO L93 Difference]: Finished difference Result 83601 states and 116581 transitions. [2024-11-07 00:26:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:35,476 INFO L225 Difference]: With dead ends: 83601 [2024-11-07 00:26:35,476 INFO L226 Difference]: Without dead ends: 68209 [2024-11-07 00:26:35,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:35,512 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 4917 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:35,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4917 Valid, 1758 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 00:26:35,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68209 states. [2024-11-07 00:26:36,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68209 to 35449. [2024-11-07 00:26:36,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35449 states, 35448 states have (on average 1.382842473482284) internal successors, (49019), 35448 states have internal predecessors, (49019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35449 states to 35449 states and 49019 transitions. [2024-11-07 00:26:36,615 INFO L78 Accepts]: Start accepts. Automaton has 35449 states and 49019 transitions. Word has length 84 [2024-11-07 00:26:36,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:36,615 INFO L471 AbstractCegarLoop]: Abstraction has 35449 states and 49019 transitions. [2024-11-07 00:26:36,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:36,615 INFO L276 IsEmpty]: Start isEmpty. Operand 35449 states and 49019 transitions. [2024-11-07 00:26:36,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:36,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:36,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:36,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:26:36,641 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:36,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:36,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2043562398, now seen corresponding path program 1 times [2024-11-07 00:26:36,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:36,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77464389] [2024-11-07 00:26:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:36,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:37,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:37,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77464389] [2024-11-07 00:26:37,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77464389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:37,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:37,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:37,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289746243] [2024-11-07 00:26:37,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:37,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:37,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:37,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:37,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:37,052 INFO L87 Difference]: Start difference. First operand 35449 states and 49019 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:38,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:38,367 INFO L93 Difference]: Finished difference Result 103185 states and 144922 transitions. [2024-11-07 00:26:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:38,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:38,513 INFO L225 Difference]: With dead ends: 103185 [2024-11-07 00:26:38,513 INFO L226 Difference]: Without dead ends: 89826 [2024-11-07 00:26:38,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:38,568 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 5116 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5116 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:38,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5116 Valid, 1827 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 00:26:38,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89826 states. [2024-11-07 00:26:39,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89826 to 35585. [2024-11-07 00:26:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35585 states, 35584 states have (on average 1.3825033723021583) internal successors, (49195), 35584 states have internal predecessors, (49195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35585 states to 35585 states and 49195 transitions. [2024-11-07 00:26:39,889 INFO L78 Accepts]: Start accepts. Automaton has 35585 states and 49195 transitions. Word has length 84 [2024-11-07 00:26:39,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:39,890 INFO L471 AbstractCegarLoop]: Abstraction has 35585 states and 49195 transitions. [2024-11-07 00:26:39,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 35585 states and 49195 transitions. [2024-11-07 00:26:39,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:39,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:39,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:39,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:26:39,919 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:39,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 568007272, now seen corresponding path program 1 times [2024-11-07 00:26:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:39,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349575312] [2024-11-07 00:26:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:39,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:40,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:40,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349575312] [2024-11-07 00:26:40,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349575312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:40,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:40,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:40,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756261775] [2024-11-07 00:26:40,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:40,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:40,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:40,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:40,224 INFO L87 Difference]: Start difference. First operand 35585 states and 49195 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:41,715 INFO L93 Difference]: Finished difference Result 99804 states and 139962 transitions. [2024-11-07 00:26:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:41,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:41,853 INFO L225 Difference]: With dead ends: 99804 [2024-11-07 00:26:41,853 INFO L226 Difference]: Without dead ends: 82672 [2024-11-07 00:26:41,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:41,892 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 5020 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:41,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 1799 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 00:26:41,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82672 states. [2024-11-07 00:26:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82672 to 35918. [2024-11-07 00:26:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35918 states, 35917 states have (on average 1.3819639724921347) internal successors, (49636), 35917 states have internal predecessors, (49636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35918 states to 35918 states and 49636 transitions. [2024-11-07 00:26:42,920 INFO L78 Accepts]: Start accepts. Automaton has 35918 states and 49636 transitions. Word has length 84 [2024-11-07 00:26:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:42,920 INFO L471 AbstractCegarLoop]: Abstraction has 35918 states and 49636 transitions. [2024-11-07 00:26:42,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 35918 states and 49636 transitions. [2024-11-07 00:26:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:42,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:42,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:42,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:26:42,940 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:42,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:42,940 INFO L85 PathProgramCache]: Analyzing trace with hash 34952956, now seen corresponding path program 1 times [2024-11-07 00:26:42,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:42,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535633484] [2024-11-07 00:26:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:42,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:43,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:43,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535633484] [2024-11-07 00:26:43,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535633484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:43,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:43,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:43,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352364326] [2024-11-07 00:26:43,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:43,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:43,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:43,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:43,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:43,151 INFO L87 Difference]: Start difference. First operand 35918 states and 49636 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:44,374 INFO L93 Difference]: Finished difference Result 92416 states and 129232 transitions. [2024-11-07 00:26:44,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:44,680 INFO L225 Difference]: With dead ends: 92416 [2024-11-07 00:26:44,680 INFO L226 Difference]: Without dead ends: 75932 [2024-11-07 00:26:44,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:44,704 INFO L432 NwaCegarLoop]: 690 mSDtfsCounter, 4975 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:44,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4975 Valid, 1774 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 00:26:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75932 states. [2024-11-07 00:26:45,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75932 to 36494. [2024-11-07 00:26:45,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36494 states, 36493 states have (on average 1.3812511988600553) internal successors, (50406), 36493 states have internal predecessors, (50406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36494 states to 36494 states and 50406 transitions. [2024-11-07 00:26:45,853 INFO L78 Accepts]: Start accepts. Automaton has 36494 states and 50406 transitions. Word has length 84 [2024-11-07 00:26:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:45,853 INFO L471 AbstractCegarLoop]: Abstraction has 36494 states and 50406 transitions. [2024-11-07 00:26:45,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 00:26:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 36494 states and 50406 transitions. [2024-11-07 00:26:45,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:45,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:45,898 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:45,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:26:45,902 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:45,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash -710494597, now seen corresponding path program 1 times [2024-11-07 00:26:45,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:45,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338611610] [2024-11-07 00:26:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:45,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:46,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:46,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338611610] [2024-11-07 00:26:46,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338611610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:46,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:46,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:26:46,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396095515] [2024-11-07 00:26:46,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:46,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:26:46,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:26:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:26:46,358 INFO L87 Difference]: Start difference. First operand 36494 states and 50406 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:47,919 INFO L93 Difference]: Finished difference Result 78944 states and 110611 transitions. [2024-11-07 00:26:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:26:47,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:48,013 INFO L225 Difference]: With dead ends: 78944 [2024-11-07 00:26:48,013 INFO L226 Difference]: Without dead ends: 55721 [2024-11-07 00:26:48,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-07 00:26:48,049 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 5830 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5830 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:48,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5830 Valid, 2859 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 00:26:48,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55721 states. [2024-11-07 00:26:48,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55721 to 36426. [2024-11-07 00:26:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36426 states, 36425 states have (on average 1.380974605353466) internal successors, (50302), 36425 states have internal predecessors, (50302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36426 states to 36426 states and 50302 transitions. [2024-11-07 00:26:48,860 INFO L78 Accepts]: Start accepts. Automaton has 36426 states and 50302 transitions. Word has length 85 [2024-11-07 00:26:48,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:48,860 INFO L471 AbstractCegarLoop]: Abstraction has 36426 states and 50302 transitions. [2024-11-07 00:26:48,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:48,860 INFO L276 IsEmpty]: Start isEmpty. Operand 36426 states and 50302 transitions. [2024-11-07 00:26:48,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:48,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:48,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:48,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:26:48,881 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:48,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:48,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1893063945, now seen corresponding path program 1 times [2024-11-07 00:26:48,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:48,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471973810] [2024-11-07 00:26:48,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:48,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:49,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:49,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471973810] [2024-11-07 00:26:49,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471973810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:49,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:49,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:49,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782224328] [2024-11-07 00:26:49,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:49,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:49,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:49,096 INFO L87 Difference]: Start difference. First operand 36426 states and 50302 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:50,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:50,383 INFO L93 Difference]: Finished difference Result 91476 states and 128032 transitions. [2024-11-07 00:26:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:50,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:50,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:50,515 INFO L225 Difference]: With dead ends: 91476 [2024-11-07 00:26:50,515 INFO L226 Difference]: Without dead ends: 75864 [2024-11-07 00:26:50,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:50,559 INFO L432 NwaCegarLoop]: 690 mSDtfsCounter, 4968 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4968 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:50,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4968 Valid, 1774 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 00:26:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75864 states. [2024-11-07 00:26:51,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75864 to 36546. [2024-11-07 00:26:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36546 states, 36545 states have (on average 1.3808181693802162) internal successors, (50462), 36545 states have internal predecessors, (50462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:51,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36546 states to 36546 states and 50462 transitions. [2024-11-07 00:26:51,779 INFO L78 Accepts]: Start accepts. Automaton has 36546 states and 50462 transitions. Word has length 85 [2024-11-07 00:26:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:51,779 INFO L471 AbstractCegarLoop]: Abstraction has 36546 states and 50462 transitions. [2024-11-07 00:26:51,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:51,780 INFO L276 IsEmpty]: Start isEmpty. Operand 36546 states and 50462 transitions. [2024-11-07 00:26:51,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:51,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:51,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:51,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:26:51,806 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:51,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:51,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1494678601, now seen corresponding path program 1 times [2024-11-07 00:26:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:51,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123399718] [2024-11-07 00:26:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:51,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:52,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:52,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123399718] [2024-11-07 00:26:52,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123399718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:52,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:52,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:52,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40505817] [2024-11-07 00:26:52,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:52,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:52,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:52,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:52,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:52,075 INFO L87 Difference]: Start difference. First operand 36546 states and 50462 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:53,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:53,388 INFO L93 Difference]: Finished difference Result 85050 states and 118502 transitions. [2024-11-07 00:26:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:53,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:53,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:53,502 INFO L225 Difference]: With dead ends: 85050 [2024-11-07 00:26:53,502 INFO L226 Difference]: Without dead ends: 69622 [2024-11-07 00:26:53,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:53,542 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 4909 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4909 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:53,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4909 Valid, 1758 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 00:26:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69622 states. [2024-11-07 00:26:54,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69622 to 36836. [2024-11-07 00:26:54,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36836 states, 36835 states have (on average 1.3809148907289264) internal successors, (50866), 36835 states have internal predecessors, (50866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36836 states to 36836 states and 50866 transitions. [2024-11-07 00:26:54,514 INFO L78 Accepts]: Start accepts. Automaton has 36836 states and 50866 transitions. Word has length 85 [2024-11-07 00:26:54,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:54,515 INFO L471 AbstractCegarLoop]: Abstraction has 36836 states and 50866 transitions. [2024-11-07 00:26:54,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 36836 states and 50866 transitions. [2024-11-07 00:26:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:54,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:54,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:54,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:26:54,538 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:54,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1814919122, now seen corresponding path program 1 times [2024-11-07 00:26:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:54,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922973934] [2024-11-07 00:26:54,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:54,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:55,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922973934] [2024-11-07 00:26:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922973934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:55,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:55,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:26:55,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852848762] [2024-11-07 00:26:55,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:55,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:26:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:55,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:26:55,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:26:55,117 INFO L87 Difference]: Start difference. First operand 36836 states and 50866 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:56,377 INFO L93 Difference]: Finished difference Result 79281 states and 111129 transitions. [2024-11-07 00:26:56,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:26:56,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:56,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:56,468 INFO L225 Difference]: With dead ends: 79281 [2024-11-07 00:26:56,468 INFO L226 Difference]: Without dead ends: 56022 [2024-11-07 00:26:56,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:26:56,506 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 5922 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5922 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:56,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5922 Valid, 2850 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 00:26:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56022 states. [2024-11-07 00:26:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56022 to 36750. [2024-11-07 00:26:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36750 states, 36749 states have (on average 1.3807722659119976) internal successors, (50742), 36749 states have internal predecessors, (50742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36750 states to 36750 states and 50742 transitions. [2024-11-07 00:26:57,546 INFO L78 Accepts]: Start accepts. Automaton has 36750 states and 50742 transitions. Word has length 85 [2024-11-07 00:26:57,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:57,546 INFO L471 AbstractCegarLoop]: Abstraction has 36750 states and 50742 transitions. [2024-11-07 00:26:57,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 36750 states and 50742 transitions. [2024-11-07 00:26:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:57,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:57,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:57,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:26:57,573 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:57,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash 124913734, now seen corresponding path program 1 times [2024-11-07 00:26:57,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:57,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262643801] [2024-11-07 00:26:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:57,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:57,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:57,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262643801] [2024-11-07 00:26:57,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262643801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:57,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:57,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:26:57,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43753023] [2024-11-07 00:26:57,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:57,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:57,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:57,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:57,833 INFO L87 Difference]: Start difference. First operand 36750 states and 50742 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:59,078 INFO L93 Difference]: Finished difference Result 99307 states and 139363 transitions. [2024-11-07 00:26:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:26:59,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:59,222 INFO L225 Difference]: With dead ends: 99307 [2024-11-07 00:26:59,222 INFO L226 Difference]: Without dead ends: 83599 [2024-11-07 00:26:59,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:26:59,267 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 5009 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:59,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 1799 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 00:26:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83599 states. [2024-11-07 00:27:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83599 to 36825. [2024-11-07 00:27:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36825 states, 36824 states have (on average 1.3806756463176189) internal successors, (50842), 36824 states have internal predecessors, (50842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36825 states to 36825 states and 50842 transitions. [2024-11-07 00:27:00,410 INFO L78 Accepts]: Start accepts. Automaton has 36825 states and 50842 transitions. Word has length 85 [2024-11-07 00:27:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:00,410 INFO L471 AbstractCegarLoop]: Abstraction has 36825 states and 50842 transitions. [2024-11-07 00:27:00,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 36825 states and 50842 transitions. [2024-11-07 00:27:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:00,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:00,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:00,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:27:00,435 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:00,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:00,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1705447448, now seen corresponding path program 1 times [2024-11-07 00:27:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:00,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108130098] [2024-11-07 00:27:00,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:00,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:00,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:00,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108130098] [2024-11-07 00:27:00,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108130098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:00,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:00,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:27:00,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462346807] [2024-11-07 00:27:00,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:00,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:27:00,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:00,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:27:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:27:00,772 INFO L87 Difference]: Start difference. First operand 36825 states and 50842 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:02,093 INFO L93 Difference]: Finished difference Result 75125 states and 105150 transitions. [2024-11-07 00:27:02,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:27:02,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:02,171 INFO L225 Difference]: With dead ends: 75125 [2024-11-07 00:27:02,171 INFO L226 Difference]: Without dead ends: 50984 [2024-11-07 00:27:02,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-07 00:27:02,207 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 4438 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4438 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:02,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4438 Valid, 2835 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 00:27:02,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50984 states. [2024-11-07 00:27:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50984 to 36283. [2024-11-07 00:27:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36283 states, 36282 states have (on average 1.3809878176506256) internal successors, (50105), 36282 states have internal predecessors, (50105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36283 states to 36283 states and 50105 transitions. [2024-11-07 00:27:02,988 INFO L78 Accepts]: Start accepts. Automaton has 36283 states and 50105 transitions. Word has length 85 [2024-11-07 00:27:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:02,989 INFO L471 AbstractCegarLoop]: Abstraction has 36283 states and 50105 transitions. [2024-11-07 00:27:02,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 36283 states and 50105 transitions. [2024-11-07 00:27:03,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:03,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:03,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:03,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:27:03,010 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:03,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:03,010 INFO L85 PathProgramCache]: Analyzing trace with hash -668066044, now seen corresponding path program 1 times [2024-11-07 00:27:03,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:03,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966565108] [2024-11-07 00:27:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:03,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:03,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:03,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966565108] [2024-11-07 00:27:03,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966565108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:03,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:03,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:27:03,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287708919] [2024-11-07 00:27:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:03,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:03,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:03,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:03,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:03,199 INFO L87 Difference]: Start difference. First operand 36283 states and 50105 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:04,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:04,196 INFO L93 Difference]: Finished difference Result 84537 states and 117811 transitions. [2024-11-07 00:27:04,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:27:04,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:04,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:04,307 INFO L225 Difference]: With dead ends: 84537 [2024-11-07 00:27:04,307 INFO L226 Difference]: Without dead ends: 69109 [2024-11-07 00:27:04,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:27:04,347 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 4895 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:04,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4895 Valid, 1758 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 00:27:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69109 states. [2024-11-07 00:27:05,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69109 to 36579. [2024-11-07 00:27:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36579 states, 36578 states have (on average 1.3811307343211767) internal successors, (50519), 36578 states have internal predecessors, (50519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36579 states to 36579 states and 50519 transitions. [2024-11-07 00:27:05,688 INFO L78 Accepts]: Start accepts. Automaton has 36579 states and 50519 transitions. Word has length 85 [2024-11-07 00:27:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:05,688 INFO L471 AbstractCegarLoop]: Abstraction has 36579 states and 50519 transitions. [2024-11-07 00:27:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 36579 states and 50519 transitions. [2024-11-07 00:27:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:05,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:05,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:05,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:27:05,715 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:05,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash -269680700, now seen corresponding path program 1 times [2024-11-07 00:27:05,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:05,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578497554] [2024-11-07 00:27:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:05,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:06,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:06,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578497554] [2024-11-07 00:27:06,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578497554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:06,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:06,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 00:27:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788277484] [2024-11-07 00:27:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:06,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:27:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:27:06,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:27:06,361 INFO L87 Difference]: Start difference. First operand 36579 states and 50519 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:07,834 INFO L93 Difference]: Finished difference Result 78116 states and 109391 transitions. [2024-11-07 00:27:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:27:07,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:07,922 INFO L225 Difference]: With dead ends: 78116 [2024-11-07 00:27:07,923 INFO L226 Difference]: Without dead ends: 54981 [2024-11-07 00:27:07,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-11-07 00:27:07,959 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 5201 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5201 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:07,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5201 Valid, 3340 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 00:27:08,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54981 states. [2024-11-07 00:27:08,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54981 to 36555. [2024-11-07 00:27:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36555 states, 36554 states have (on average 1.3807244077255567) internal successors, (50471), 36554 states have internal predecessors, (50471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36555 states to 36555 states and 50471 transitions. [2024-11-07 00:27:08,927 INFO L78 Accepts]: Start accepts. Automaton has 36555 states and 50471 transitions. Word has length 85 [2024-11-07 00:27:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:08,927 INFO L471 AbstractCegarLoop]: Abstraction has 36555 states and 50471 transitions. [2024-11-07 00:27:08,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 36555 states and 50471 transitions. [2024-11-07 00:27:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:08,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:08,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:08,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:27:08,949 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:08,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1387600038, now seen corresponding path program 1 times [2024-11-07 00:27:08,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:08,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786899381] [2024-11-07 00:27:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:08,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:09,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:09,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:09,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786899381] [2024-11-07 00:27:09,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786899381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:09,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:09,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268721316] [2024-11-07 00:27:09,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:09,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 00:27:09,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:09,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 00:27:09,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:27:09,471 INFO L87 Difference]: Start difference. First operand 36555 states and 50471 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:10,580 INFO L93 Difference]: Finished difference Result 93245 states and 131180 transitions. [2024-11-07 00:27:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:27:10,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:10,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:10,687 INFO L225 Difference]: With dead ends: 93245 [2024-11-07 00:27:10,687 INFO L226 Difference]: Without dead ends: 67044