./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+cfa-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.7.1.ufo.UNBOUNDED.pals.c.v+cfa-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', 'cd7d66127097bee693df60b26ad836789e8e18ef088953d4d01590e6c82035a4'] 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.7.1.ufo.UNBOUNDED.pals.c.v+cfa-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 cd7d66127097bee693df60b26ad836789e8e18ef088953d4d01590e6c82035a4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:35:02,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:35:02,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:35:02,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:35:02,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:35:02,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:35:02,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:35:02,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:35:02,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:35:02,909 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:35:02,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:35:02,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:35:02,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:35:02,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:35:02,910 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:35:02,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:35:02,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:35:02,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:35:02,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:35:02,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:35:02,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:35:02,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:35:02,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:35:02,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:35:02,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:35:02,913 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:35:02,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:35:02,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:35:02,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:35:02,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:35:02,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:35:02,914 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 -> cd7d66127097bee693df60b26ad836789e8e18ef088953d4d01590e6c82035a4 [2024-11-07 00:35:03,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:35:03,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:35:03,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:35:03,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:35:03,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:35:03,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-07 00:35:04,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:35:04,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:35:04,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-07 00:35:04,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eee5ca2a5/c538591be21645bf82a2b6d4c64b3a73/FLAGdad1c2ac1 [2024-11-07 00:35:04,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eee5ca2a5/c538591be21645bf82a2b6d4c64b3a73 [2024-11-07 00:35:04,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:35:04,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:35:04,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:35:04,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:35:04,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:35:04,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:04" (1/1) ... [2024-11-07 00:35:04,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1461586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:04, skipping insertion in model container [2024-11-07 00:35:04,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:04" (1/1) ... [2024-11-07 00:35:04,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:35:05,142 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.7.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7669,7682] [2024-11-07 00:35:05,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:35:05,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:35:05,251 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.7.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7669,7682] [2024-11-07 00:35:05,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:35:05,304 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:35:05,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05 WrapperNode [2024-11-07 00:35:05,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:35:05,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:35:05,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:35:05,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:35:05,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,371 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 625 [2024-11-07 00:35:05,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:35:05,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:35:05,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:35:05,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:35:05,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,420 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 00:35:05,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:35:05,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:35:05,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:35:05,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:35:05,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (1/1) ... [2024-11-07 00:35:05,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:35:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:35:05,492 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 00:35:05,498 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 00:35:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:35:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:35:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:35:05,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:35:05,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:35:05,637 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:35:06,200 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-07 00:35:06,200 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:35:06,213 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:35:06,214 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:35:06,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:06 BoogieIcfgContainer [2024-11-07 00:35:06,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:35:06,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:35:06,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:35:06,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:35:06,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:35:04" (1/3) ... [2024-11-07 00:35:06,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa8d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:06, skipping insertion in model container [2024-11-07 00:35:06,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:05" (2/3) ... [2024-11-07 00:35:06,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa8d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:06, skipping insertion in model container [2024-11-07 00:35:06,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:06" (3/3) ... [2024-11-07 00:35:06,223 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-07 00:35:06,237 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:35:06,237 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:35:06,300 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:35:06,313 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;@44150825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:35:06,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:35:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:06,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 00:35:06,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:06,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:06,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:06,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:06,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2006546999, now seen corresponding path program 1 times [2024-11-07 00:35:06,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:06,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324369832] [2024-11-07 00:35:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:06,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:06,846 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 00:35:06,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:06,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324369832] [2024-11-07 00:35:06,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324369832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:06,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:06,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565370649] [2024-11-07 00:35:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:06,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:06,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:06,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:06,874 INFO L87 Difference]: Start difference. First operand has 138 states, 136 states have (on average 1.7426470588235294) internal successors, (237), 137 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:06,954 INFO L93 Difference]: Finished difference Result 300 states and 490 transitions. [2024-11-07 00:35:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:06,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-07 00:35:06,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:06,965 INFO L225 Difference]: With dead ends: 300 [2024-11-07 00:35:06,965 INFO L226 Difference]: Without dead ends: 209 [2024-11-07 00:35:06,968 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 00:35:06,971 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 159 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:06,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 471 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:06,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-07 00:35:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2024-11-07 00:35:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.4466019417475728) internal successors, (298), 206 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 298 transitions. [2024-11-07 00:35:07,011 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 298 transitions. Word has length 87 [2024-11-07 00:35:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:07,011 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 298 transitions. [2024-11-07 00:35:07,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,012 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 298 transitions. [2024-11-07 00:35:07,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:35:07,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:07,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:07,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:35:07,015 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:07,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1559740613, now seen corresponding path program 1 times [2024-11-07 00:35:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:07,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927020922] [2024-11-07 00:35:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:07,229 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 00:35:07,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:07,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927020922] [2024-11-07 00:35:07,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927020922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:07,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:07,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:07,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949104430] [2024-11-07 00:35:07,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:07,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:07,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:07,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:07,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:07,232 INFO L87 Difference]: Start difference. First operand 207 states and 298 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:07,276 INFO L93 Difference]: Finished difference Result 499 states and 762 transitions. [2024-11-07 00:35:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 00:35:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:07,279 INFO L225 Difference]: With dead ends: 499 [2024-11-07 00:35:07,279 INFO L226 Difference]: Without dead ends: 345 [2024-11-07 00:35:07,280 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 00:35:07,281 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 110 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:07,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 402 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-07 00:35:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 343. [2024-11-07 00:35:07,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 342 states have (on average 1.5029239766081872) internal successors, (514), 342 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 514 transitions. [2024-11-07 00:35:07,302 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 514 transitions. Word has length 88 [2024-11-07 00:35:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:07,304 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 514 transitions. [2024-11-07 00:35:07,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 514 transitions. [2024-11-07 00:35:07,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 00:35:07,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:07,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:07,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:35:07,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:07,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:07,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1480148747, now seen corresponding path program 1 times [2024-11-07 00:35:07,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:07,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681252431] [2024-11-07 00:35:07,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:07,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:07,503 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 00:35:07,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:07,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681252431] [2024-11-07 00:35:07,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681252431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:07,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:07,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:07,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893748964] [2024-11-07 00:35:07,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:07,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:07,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:07,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:07,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:07,507 INFO L87 Difference]: Start difference. First operand 343 states and 514 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:07,535 INFO L93 Difference]: Finished difference Result 891 states and 1384 transitions. [2024-11-07 00:35:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:07,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-07 00:35:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:07,539 INFO L225 Difference]: With dead ends: 891 [2024-11-07 00:35:07,539 INFO L226 Difference]: Without dead ends: 601 [2024-11-07 00:35:07,540 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 00:35:07,541 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 105 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:07,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 398 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:07,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-07 00:35:07,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 599. [2024-11-07 00:35:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 1.5351170568561874) internal successors, (918), 598 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 918 transitions. [2024-11-07 00:35:07,564 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 918 transitions. Word has length 89 [2024-11-07 00:35:07,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:07,564 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 918 transitions. [2024-11-07 00:35:07,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 918 transitions. [2024-11-07 00:35:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 00:35:07,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:07,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:07,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:35:07,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:07,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:07,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1142089047, now seen corresponding path program 1 times [2024-11-07 00:35:07,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:07,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988622150] [2024-11-07 00:35:07,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:07,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:07,697 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 00:35:07,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988622150] [2024-11-07 00:35:07,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988622150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:07,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:07,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:07,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932023332] [2024-11-07 00:35:07,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:07,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:07,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:07,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:07,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:07,699 INFO L87 Difference]: Start difference. First operand 599 states and 918 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:07,735 INFO L93 Difference]: Finished difference Result 1627 states and 2544 transitions. [2024-11-07 00:35:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-07 00:35:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:07,743 INFO L225 Difference]: With dead ends: 1627 [2024-11-07 00:35:07,743 INFO L226 Difference]: Without dead ends: 1081 [2024-11-07 00:35:07,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:07,745 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 100 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:07,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 394 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:07,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-07 00:35:07,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1079. [2024-11-07 00:35:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.549165120593692) internal successors, (1670), 1078 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1670 transitions. [2024-11-07 00:35:07,802 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1670 transitions. Word has length 90 [2024-11-07 00:35:07,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:07,803 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1670 transitions. [2024-11-07 00:35:07,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1670 transitions. [2024-11-07 00:35:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 00:35:07,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:07,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:07,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:35:07,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:07,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1309607801, now seen corresponding path program 1 times [2024-11-07 00:35:07,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:07,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671098969] [2024-11-07 00:35:07,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:07,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:07,960 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 00:35:07,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:07,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671098969] [2024-11-07 00:35:07,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671098969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:07,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:07,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799509485] [2024-11-07 00:35:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:07,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:07,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:07,964 INFO L87 Difference]: Start difference. First operand 1079 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:08,002 INFO L93 Difference]: Finished difference Result 3003 states and 4696 transitions. [2024-11-07 00:35:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:08,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-07 00:35:08,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:08,012 INFO L225 Difference]: With dead ends: 3003 [2024-11-07 00:35:08,013 INFO L226 Difference]: Without dead ends: 1977 [2024-11-07 00:35:08,016 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 00:35:08,017 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 95 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:08,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:08,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2024-11-07 00:35:08,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1975. [2024-11-07 00:35:08,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1975 states, 1974 states have (on average 1.5511651469098278) internal successors, (3062), 1974 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3062 transitions. [2024-11-07 00:35:08,088 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3062 transitions. Word has length 91 [2024-11-07 00:35:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:08,089 INFO L471 AbstractCegarLoop]: Abstraction has 1975 states and 3062 transitions. [2024-11-07 00:35:08,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3062 transitions. [2024-11-07 00:35:08,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 00:35:08,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:08,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:08,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:35:08,093 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:08,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash 582949359, now seen corresponding path program 1 times [2024-11-07 00:35:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:08,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511457639] [2024-11-07 00:35:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:08,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:35:08,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:08,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511457639] [2024-11-07 00:35:08,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511457639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:08,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:08,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:08,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997145561] [2024-11-07 00:35:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:08,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:08,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:08,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:08,217 INFO L87 Difference]: Start difference. First operand 1975 states and 3062 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:08,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:08,274 INFO L93 Difference]: Finished difference Result 5563 states and 8664 transitions. [2024-11-07 00:35:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:08,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-07 00:35:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:08,289 INFO L225 Difference]: With dead ends: 5563 [2024-11-07 00:35:08,290 INFO L226 Difference]: Without dead ends: 3641 [2024-11-07 00:35:08,294 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 00:35:08,295 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 90 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:08,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 386 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2024-11-07 00:35:08,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3639. [2024-11-07 00:35:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3639 states, 3638 states have (on average 1.5453545904343045) internal successors, (5622), 3638 states have internal predecessors, (5622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5622 transitions. [2024-11-07 00:35:08,400 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5622 transitions. Word has length 92 [2024-11-07 00:35:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:08,400 INFO L471 AbstractCegarLoop]: Abstraction has 3639 states and 5622 transitions. [2024-11-07 00:35:08,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5622 transitions. [2024-11-07 00:35:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 00:35:08,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:08,401 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:08,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:35:08,402 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:08,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:08,402 INFO L85 PathProgramCache]: Analyzing trace with hash -496500112, now seen corresponding path program 1 times [2024-11-07 00:35:08,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:08,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646567685] [2024-11-07 00:35:08,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:08,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:08,684 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 00:35:08,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:08,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646567685] [2024-11-07 00:35:08,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646567685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:08,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:08,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:08,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371952608] [2024-11-07 00:35:08,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:08,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:08,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:08,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:08,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:08,689 INFO L87 Difference]: Start difference. First operand 3639 states and 5622 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:09,423 INFO L93 Difference]: Finished difference Result 53843 states and 83588 transitions. [2024-11-07 00:35:09,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:35:09,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-07 00:35:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:09,609 INFO L225 Difference]: With dead ends: 53843 [2024-11-07 00:35:09,609 INFO L226 Difference]: Without dead ends: 50257 [2024-11-07 00:35:09,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-07 00:35:09,624 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 2518 mSDsluCounter, 4862 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2518 SdHoareTripleChecker+Valid, 5041 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:09,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2518 Valid, 5041 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:35:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50257 states. [2024-11-07 00:35:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50257 to 7223. [2024-11-07 00:35:10,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7223 states, 7222 states have (on average 1.5317086679590142) internal successors, (11062), 7222 states have internal predecessors, (11062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 11062 transitions. [2024-11-07 00:35:10,218 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 11062 transitions. Word has length 93 [2024-11-07 00:35:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:10,219 INFO L471 AbstractCegarLoop]: Abstraction has 7223 states and 11062 transitions. [2024-11-07 00:35:10,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:10,219 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 11062 transitions. [2024-11-07 00:35:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 00:35:10,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:10,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:10,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:35:10,220 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:10,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1317055956, now seen corresponding path program 1 times [2024-11-07 00:35:10,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:10,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308718577] [2024-11-07 00:35:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:10,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:10,354 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 00:35:10,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:10,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308718577] [2024-11-07 00:35:10,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308718577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:10,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:10,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:10,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726746444] [2024-11-07 00:35:10,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:10,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:10,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:10,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:10,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:10,356 INFO L87 Difference]: Start difference. First operand 7223 states and 11062 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:10,426 INFO L93 Difference]: Finished difference Result 20859 states and 31864 transitions. [2024-11-07 00:35:10,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:10,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-07 00:35:10,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:10,459 INFO L225 Difference]: With dead ends: 20859 [2024-11-07 00:35:10,460 INFO L226 Difference]: Without dead ends: 13689 [2024-11-07 00:35:10,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:10,474 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 80 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:10,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 304 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:10,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13689 states. [2024-11-07 00:35:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13689 to 13559. [2024-11-07 00:35:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13559 states, 13558 states have (on average 1.5050892462015046) internal successors, (20406), 13558 states have internal predecessors, (20406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13559 states to 13559 states and 20406 transitions. [2024-11-07 00:35:10,844 INFO L78 Accepts]: Start accepts. Automaton has 13559 states and 20406 transitions. Word has length 95 [2024-11-07 00:35:10,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:10,845 INFO L471 AbstractCegarLoop]: Abstraction has 13559 states and 20406 transitions. [2024-11-07 00:35:10,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:10,846 INFO L276 IsEmpty]: Start isEmpty. Operand 13559 states and 20406 transitions. [2024-11-07 00:35:10,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 00:35:10,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:10,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:10,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:35:10,848 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:10,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:10,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1296053301, now seen corresponding path program 1 times [2024-11-07 00:35:10,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:10,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558328824] [2024-11-07 00:35:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:10,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:11,402 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 00:35:11,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558328824] [2024-11-07 00:35:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558328824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:11,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:11,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:11,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811233980] [2024-11-07 00:35:11,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:11,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:11,403 INFO L87 Difference]: Start difference. First operand 13559 states and 20406 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:11,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:11,940 INFO L93 Difference]: Finished difference Result 27067 states and 40760 transitions. [2024-11-07 00:35:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:11,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-07 00:35:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:11,968 INFO L225 Difference]: With dead ends: 27067 [2024-11-07 00:35:11,968 INFO L226 Difference]: Without dead ends: 13561 [2024-11-07 00:35:11,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-07 00:35:11,985 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 224 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:11,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 998 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13561 states. [2024-11-07 00:35:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13561 to 13559. [2024-11-07 00:35:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13559 states, 13558 states have (on average 1.495648325711757) internal successors, (20278), 13558 states have internal predecessors, (20278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13559 states to 13559 states and 20278 transitions. [2024-11-07 00:35:12,200 INFO L78 Accepts]: Start accepts. Automaton has 13559 states and 20278 transitions. Word has length 95 [2024-11-07 00:35:12,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:12,200 INFO L471 AbstractCegarLoop]: Abstraction has 13559 states and 20278 transitions. [2024-11-07 00:35:12,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 13559 states and 20278 transitions. [2024-11-07 00:35:12,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:12,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:12,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:12,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:35:12,202 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:12,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash 232587604, now seen corresponding path program 1 times [2024-11-07 00:35:12,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:12,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092564125] [2024-11-07 00:35:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:12,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:12,282 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 00:35:12,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:12,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092564125] [2024-11-07 00:35:12,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092564125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:12,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:12,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:35:12,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205538665] [2024-11-07 00:35:12,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:12,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:35:12,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:12,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:35:12,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:35:12,283 INFO L87 Difference]: Start difference. First operand 13559 states and 20278 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:12,387 INFO L93 Difference]: Finished difference Result 26622 states and 40124 transitions. [2024-11-07 00:35:12,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:35:12,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:12,424 INFO L225 Difference]: With dead ends: 26622 [2024-11-07 00:35:12,425 INFO L226 Difference]: Without dead ends: 19451 [2024-11-07 00:35:12,435 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 00:35:12,436 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 117 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:12,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 414 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19451 states. [2024-11-07 00:35:12,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19451 to 19449. [2024-11-07 00:35:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19449 states, 19448 states have (on average 1.4936240230357878) internal successors, (29048), 19448 states have internal predecessors, (29048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:12,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19449 states to 19449 states and 29048 transitions. [2024-11-07 00:35:12,929 INFO L78 Accepts]: Start accepts. Automaton has 19449 states and 29048 transitions. Word has length 96 [2024-11-07 00:35:12,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:12,929 INFO L471 AbstractCegarLoop]: Abstraction has 19449 states and 29048 transitions. [2024-11-07 00:35:12,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 19449 states and 29048 transitions. [2024-11-07 00:35:12,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:12,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:12,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:12,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:35:12,931 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:12,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1524855936, now seen corresponding path program 1 times [2024-11-07 00:35:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097987886] [2024-11-07 00:35:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:13,065 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 00:35:13,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:13,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097987886] [2024-11-07 00:35:13,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097987886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:13,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:13,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:35:13,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826095025] [2024-11-07 00:35:13,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:13,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:35:13,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:35:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:13,068 INFO L87 Difference]: Start difference. First operand 19449 states and 29048 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:13,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:13,414 INFO L93 Difference]: Finished difference Result 51901 states and 77754 transitions. [2024-11-07 00:35:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:13,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:13,481 INFO L225 Difference]: With dead ends: 51901 [2024-11-07 00:35:13,482 INFO L226 Difference]: Without dead ends: 32507 [2024-11-07 00:35:13,505 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 00:35:13,506 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 741 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:13,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 187 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:35:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32507 states. [2024-11-07 00:35:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32507 to 32505. [2024-11-07 00:35:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32505 states, 32504 states have (on average 1.4922471080482402) internal successors, (48504), 32504 states have internal predecessors, (48504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:14,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32505 states to 32505 states and 48504 transitions. [2024-11-07 00:35:14,133 INFO L78 Accepts]: Start accepts. Automaton has 32505 states and 48504 transitions. Word has length 96 [2024-11-07 00:35:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:14,134 INFO L471 AbstractCegarLoop]: Abstraction has 32505 states and 48504 transitions. [2024-11-07 00:35:14,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 32505 states and 48504 transitions. [2024-11-07 00:35:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:14,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:14,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:14,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:35:14,136 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:14,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1886974661, now seen corresponding path program 1 times [2024-11-07 00:35:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:14,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979833109] [2024-11-07 00:35:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:14,397 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 00:35:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979833109] [2024-11-07 00:35:14,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979833109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:14,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:14,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:35:14,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116650896] [2024-11-07 00:35:14,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:14,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:35:14,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:14,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:35:14,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:14,400 INFO L87 Difference]: Start difference. First operand 32505 states and 48504 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:14,614 INFO L93 Difference]: Finished difference Result 64955 states and 96953 transitions. [2024-11-07 00:35:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:14,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:14,656 INFO L225 Difference]: With dead ends: 64955 [2024-11-07 00:35:14,657 INFO L226 Difference]: Without dead ends: 32505 [2024-11-07 00:35:14,688 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 00:35:14,688 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 443 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:14,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 142 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32505 states. [2024-11-07 00:35:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32505 to 32505. [2024-11-07 00:35:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32505 states, 32504 states have (on average 1.4824021658872755) internal successors, (48184), 32504 states have internal predecessors, (48184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32505 states to 32505 states and 48184 transitions. [2024-11-07 00:35:15,149 INFO L78 Accepts]: Start accepts. Automaton has 32505 states and 48184 transitions. Word has length 96 [2024-11-07 00:35:15,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:15,150 INFO L471 AbstractCegarLoop]: Abstraction has 32505 states and 48184 transitions. [2024-11-07 00:35:15,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:15,150 INFO L276 IsEmpty]: Start isEmpty. Operand 32505 states and 48184 transitions. [2024-11-07 00:35:15,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:15,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:15,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:15,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:35:15,151 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:15,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:15,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1645128928, now seen corresponding path program 1 times [2024-11-07 00:35:15,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:15,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227780385] [2024-11-07 00:35:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:15,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:15,286 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 00:35:15,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:15,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227780385] [2024-11-07 00:35:15,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227780385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:15,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:15,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:35:15,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261733812] [2024-11-07 00:35:15,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:15,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:35:15,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:15,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:35:15,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:15,287 INFO L87 Difference]: Start difference. First operand 32505 states and 48184 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:15,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:15,634 INFO L93 Difference]: Finished difference Result 64955 states and 96313 transitions. [2024-11-07 00:35:15,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:15,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:15,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:15,678 INFO L225 Difference]: With dead ends: 64955 [2024-11-07 00:35:15,678 INFO L226 Difference]: Without dead ends: 32505 [2024-11-07 00:35:15,695 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 00:35:15,696 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 401 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:15,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 166 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32505 states. [2024-11-07 00:35:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32505 to 32505. [2024-11-07 00:35:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32505 states, 32504 states have (on average 1.4725572237263107) internal successors, (47864), 32504 states have internal predecessors, (47864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32505 states to 32505 states and 47864 transitions. [2024-11-07 00:35:16,376 INFO L78 Accepts]: Start accepts. Automaton has 32505 states and 47864 transitions. Word has length 96 [2024-11-07 00:35:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:16,377 INFO L471 AbstractCegarLoop]: Abstraction has 32505 states and 47864 transitions. [2024-11-07 00:35:16,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 32505 states and 47864 transitions. [2024-11-07 00:35:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:16,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:16,378 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:16,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:35:16,379 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:16,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:16,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1115838427, now seen corresponding path program 1 times [2024-11-07 00:35:16,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:16,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588279615] [2024-11-07 00:35:16,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:16,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:16,530 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 00:35:16,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:16,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588279615] [2024-11-07 00:35:16,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588279615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:16,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:16,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:35:16,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442965062] [2024-11-07 00:35:16,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:16,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:35:16,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:16,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:35:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:16,533 INFO L87 Difference]: Start difference. First operand 32505 states and 47864 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:16,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:16,781 INFO L93 Difference]: Finished difference Result 64955 states and 95673 transitions. [2024-11-07 00:35:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:16,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:16,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:16,823 INFO L225 Difference]: With dead ends: 64955 [2024-11-07 00:35:16,823 INFO L226 Difference]: Without dead ends: 32505 [2024-11-07 00:35:16,850 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 00:35:16,850 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 463 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:16,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 126 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:16,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32505 states. [2024-11-07 00:35:17,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32505 to 32505. [2024-11-07 00:35:17,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32505 states, 32504 states have (on average 1.4627122815653457) internal successors, (47544), 32504 states have internal predecessors, (47544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:17,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32505 states to 32505 states and 47544 transitions. [2024-11-07 00:35:17,411 INFO L78 Accepts]: Start accepts. Automaton has 32505 states and 47544 transitions. Word has length 96 [2024-11-07 00:35:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:17,411 INFO L471 AbstractCegarLoop]: Abstraction has 32505 states and 47544 transitions. [2024-11-07 00:35:17,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:17,411 INFO L276 IsEmpty]: Start isEmpty. Operand 32505 states and 47544 transitions. [2024-11-07 00:35:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:17,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:17,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:17,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:35:17,412 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:17,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:17,413 INFO L85 PathProgramCache]: Analyzing trace with hash -625578688, now seen corresponding path program 1 times [2024-11-07 00:35:17,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:17,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588436711] [2024-11-07 00:35:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:17,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:17,527 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 00:35:17,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:17,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588436711] [2024-11-07 00:35:17,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588436711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:17,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:17,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:35:17,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897341331] [2024-11-07 00:35:17,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:17,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:35:17,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:35:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:17,528 INFO L87 Difference]: Start difference. First operand 32505 states and 47544 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:17,931 INFO L93 Difference]: Finished difference Result 64955 states and 95033 transitions. [2024-11-07 00:35:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:17,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:17,972 INFO L225 Difference]: With dead ends: 64955 [2024-11-07 00:35:17,973 INFO L226 Difference]: Without dead ends: 32505 [2024-11-07 00:35:17,987 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 00:35:17,988 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 408 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:17,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 158 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:18,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32505 states. [2024-11-07 00:35:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32505 to 32505. [2024-11-07 00:35:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32505 states, 32504 states have (on average 1.452867339404381) internal successors, (47224), 32504 states have internal predecessors, (47224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:18,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32505 states to 32505 states and 47224 transitions. [2024-11-07 00:35:18,402 INFO L78 Accepts]: Start accepts. Automaton has 32505 states and 47224 transitions. Word has length 96 [2024-11-07 00:35:18,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:18,402 INFO L471 AbstractCegarLoop]: Abstraction has 32505 states and 47224 transitions. [2024-11-07 00:35:18,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:18,402 INFO L276 IsEmpty]: Start isEmpty. Operand 32505 states and 47224 transitions. [2024-11-07 00:35:18,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 00:35:18,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:18,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:35:18,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:35:18,404 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:18,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:18,405 INFO L85 PathProgramCache]: Analyzing trace with hash 239953701, now seen corresponding path program 1 times [2024-11-07 00:35:18,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:18,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215963219] [2024-11-07 00:35:18,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:18,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:18,768 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 00:35:18,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:18,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215963219] [2024-11-07 00:35:18,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215963219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:18,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:18,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:35:18,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942062756] [2024-11-07 00:35:18,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:18,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:35:18,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:18,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:35:18,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:18,770 INFO L87 Difference]: Start difference. First operand 32505 states and 47224 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:18,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:18,859 INFO L93 Difference]: Finished difference Result 33531 states and 48761 transitions. [2024-11-07 00:35:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:35:18,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-07 00:35:18,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:18,906 INFO L225 Difference]: With dead ends: 33531 [2024-11-07 00:35:18,906 INFO L226 Difference]: Without dead ends: 33529 [2024-11-07 00:35:18,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:35:18,920 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:18,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 693 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:35:18,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33529 states. [2024-11-07 00:35:19,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33529 to 33529. [2024-11-07 00:35:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33529 states, 33528 states have (on average 1.4371271772846577) internal successors, (48184), 33528 states have internal predecessors, (48184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33529 states to 33529 states and 48184 transitions. [2024-11-07 00:35:19,415 INFO L78 Accepts]: Start accepts. Automaton has 33529 states and 48184 transitions. Word has length 96 [2024-11-07 00:35:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:19,415 INFO L471 AbstractCegarLoop]: Abstraction has 33529 states and 48184 transitions. [2024-11-07 00:35:19,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:19,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33529 states and 48184 transitions. [2024-11-07 00:35:19,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:35:19,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:19,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:19,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:35:19,428 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:19,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash -714656545, now seen corresponding path program 1 times [2024-11-07 00:35:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:19,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154633927] [2024-11-07 00:35:19,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 00:35:19,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:19,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154633927] [2024-11-07 00:35:19,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154633927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:19,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:19,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:19,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354164245] [2024-11-07 00:35:19,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:19,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:19,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:19,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:19,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:19,747 INFO L87 Difference]: Start difference. First operand 33529 states and 48184 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:20,698 INFO L93 Difference]: Finished difference Result 278281 states and 399872 transitions. [2024-11-07 00:35:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 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 131 [2024-11-07 00:35:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:21,369 INFO L225 Difference]: With dead ends: 278281 [2024-11-07 00:35:21,370 INFO L226 Difference]: Without dead ends: 244807 [2024-11-07 00:35:21,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:35:21,428 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 2154 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:21,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2154 Valid, 1911 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244807 states. [2024-11-07 00:35:23,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244807 to 67001. [2024-11-07 00:35:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67001 states, 67000 states have (on average 1.4327164179104477) internal successors, (95992), 67000 states have internal predecessors, (95992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67001 states to 67001 states and 95992 transitions. [2024-11-07 00:35:23,335 INFO L78 Accepts]: Start accepts. Automaton has 67001 states and 95992 transitions. Word has length 131 [2024-11-07 00:35:23,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:23,335 INFO L471 AbstractCegarLoop]: Abstraction has 67001 states and 95992 transitions. [2024-11-07 00:35:23,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 67001 states and 95992 transitions. [2024-11-07 00:35:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:35:23,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:23,348 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:23,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:35:23,348 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:23,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:23,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1365457691, now seen corresponding path program 1 times [2024-11-07 00:35:23,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:23,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964560513] [2024-11-07 00:35:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:23,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 00:35:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964560513] [2024-11-07 00:35:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964560513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:23,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:23,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085670854] [2024-11-07 00:35:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:23,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:23,589 INFO L87 Difference]: Start difference. First operand 67001 states and 95992 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:24,491 INFO L93 Difference]: Finished difference Result 311753 states and 447680 transitions. [2024-11-07 00:35:24,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:24,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 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 131 [2024-11-07 00:35:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:24,820 INFO L225 Difference]: With dead ends: 311753 [2024-11-07 00:35:24,821 INFO L226 Difference]: Without dead ends: 278279 [2024-11-07 00:35:24,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:35:24,913 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 2275 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:24,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 1743 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278279 states. [2024-11-07 00:35:27,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278279 to 117241. [2024-11-07 00:35:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117241 states, 117240 states have (on average 1.4279767997270556) internal successors, (167416), 117240 states have internal predecessors, (167416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117241 states to 117241 states and 167416 transitions. [2024-11-07 00:35:28,129 INFO L78 Accepts]: Start accepts. Automaton has 117241 states and 167416 transitions. Word has length 131 [2024-11-07 00:35:28,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:28,130 INFO L471 AbstractCegarLoop]: Abstraction has 117241 states and 167416 transitions. [2024-11-07 00:35:28,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 117241 states and 167416 transitions. [2024-11-07 00:35:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:35:28,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:28,142 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:28,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:35:28,142 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:28,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash -770469891, now seen corresponding path program 1 times [2024-11-07 00:35:28,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:28,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65317261] [2024-11-07 00:35:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:28,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-07 00:35:28,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:28,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65317261] [2024-11-07 00:35:28,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65317261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:28,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:28,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:28,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740339803] [2024-11-07 00:35:28,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:28,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:28,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:28,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:28,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:28,378 INFO L87 Difference]: Start difference. First operand 117241 states and 167416 transitions. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:29,653 INFO L93 Difference]: Finished difference Result 345225 states and 495488 transitions. [2024-11-07 00:35:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:29,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 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 131 [2024-11-07 00:35:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:30,014 INFO L225 Difference]: With dead ends: 345225 [2024-11-07 00:35:30,014 INFO L226 Difference]: Without dead ends: 311751 [2024-11-07 00:35:30,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:35:30,062 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 2143 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:30,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 1917 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311751 states. [2024-11-07 00:35:32,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311751 to 150713. [2024-11-07 00:35:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150713 states, 150712 states have (on average 1.4280481978873614) internal successors, (215224), 150712 states have internal predecessors, (215224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150713 states to 150713 states and 215224 transitions. [2024-11-07 00:35:32,767 INFO L78 Accepts]: Start accepts. Automaton has 150713 states and 215224 transitions. Word has length 131 [2024-11-07 00:35:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:32,767 INFO L471 AbstractCegarLoop]: Abstraction has 150713 states and 215224 transitions. [2024-11-07 00:35:32,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 150713 states and 215224 transitions. [2024-11-07 00:35:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:35:32,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:32,775 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:32,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:35:32,776 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:32,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 383476215, now seen corresponding path program 1 times [2024-11-07 00:35:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:32,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473958562] [2024-11-07 00:35:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:32,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 00:35:32,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:32,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473958562] [2024-11-07 00:35:32,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473958562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:32,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:32,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:32,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012592373] [2024-11-07 00:35:32,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:32,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:32,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:32,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:32,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:32,973 INFO L87 Difference]: Start difference. First operand 150713 states and 215224 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:34,280 INFO L93 Difference]: Finished difference Result 378697 states and 543296 transitions. [2024-11-07 00:35:34,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:34,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 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 131 [2024-11-07 00:35:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:34,644 INFO L225 Difference]: With dead ends: 378697 [2024-11-07 00:35:34,644 INFO L226 Difference]: Without dead ends: 345223 [2024-11-07 00:35:34,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:35:34,744 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1876 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:34,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 2009 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:35:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345223 states. [2024-11-07 00:35:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345223 to 184185. [2024-11-07 00:35:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184185 states, 184184 states have (on average 1.4280936454849498) internal successors, (263032), 184184 states have internal predecessors, (263032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:38,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184185 states to 184185 states and 263032 transitions. [2024-11-07 00:35:38,300 INFO L78 Accepts]: Start accepts. Automaton has 184185 states and 263032 transitions. Word has length 131 [2024-11-07 00:35:38,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:38,300 INFO L471 AbstractCegarLoop]: Abstraction has 184185 states and 263032 transitions. [2024-11-07 00:35:38,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:38,300 INFO L276 IsEmpty]: Start isEmpty. Operand 184185 states and 263032 transitions. [2024-11-07 00:35:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:35:38,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:38,309 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:38,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:35:38,309 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:38,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -474424463, now seen corresponding path program 1 times [2024-11-07 00:35:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:38,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011166597] [2024-11-07 00:35:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 00:35:38,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:38,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011166597] [2024-11-07 00:35:38,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011166597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:38,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:38,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202095266] [2024-11-07 00:35:38,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:38,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:38,551 INFO L87 Difference]: Start difference. First operand 184185 states and 263032 transitions. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:40,032 INFO L93 Difference]: Finished difference Result 412169 states and 591104 transitions. [2024-11-07 00:35:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:40,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 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 131 [2024-11-07 00:35:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:40,471 INFO L225 Difference]: With dead ends: 412169 [2024-11-07 00:35:40,471 INFO L226 Difference]: Without dead ends: 378695 [2024-11-07 00:35:40,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:35:40,556 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1807 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:40,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 2048 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378695 states. [2024-11-07 00:35:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378695 to 217657. [2024-11-07 00:35:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217657 states, 217656 states have (on average 1.4281251148601464) internal successors, (310840), 217656 states have internal predecessors, (310840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217657 states to 217657 states and 310840 transitions. [2024-11-07 00:35:44,262 INFO L78 Accepts]: Start accepts. Automaton has 217657 states and 310840 transitions. Word has length 131 [2024-11-07 00:35:44,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:44,262 INFO L471 AbstractCegarLoop]: Abstraction has 217657 states and 310840 transitions. [2024-11-07 00:35:44,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 217657 states and 310840 transitions. [2024-11-07 00:35:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-07 00:35:44,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:44,273 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:44,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:35:44,273 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:44,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:44,274 INFO L85 PathProgramCache]: Analyzing trace with hash 954072171, now seen corresponding path program 1 times [2024-11-07 00:35:44,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:44,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145312945] [2024-11-07 00:35:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:44,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 00:35:44,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:44,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145312945] [2024-11-07 00:35:44,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145312945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:44,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:44,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:44,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49832307] [2024-11-07 00:35:44,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:44,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:44,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:44,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:44,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:44,980 INFO L87 Difference]: Start difference. First operand 217657 states and 310840 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:35:45,938 INFO L93 Difference]: Finished difference Result 445641 states and 638912 transitions. [2024-11-07 00:35:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 00:35:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 131 [2024-11-07 00:35:45,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:35:46,452 INFO L225 Difference]: With dead ends: 445641 [2024-11-07 00:35:46,452 INFO L226 Difference]: Without dead ends: 412167 [2024-11-07 00:35:46,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-07 00:35:46,591 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 1889 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:35:46,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 2158 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:35:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412167 states. [2024-11-07 00:35:50,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412167 to 251129. [2024-11-07 00:35:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251129 states, 251128 states have (on average 1.428148195342614) internal successors, (358648), 251128 states have internal predecessors, (358648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251129 states to 251129 states and 358648 transitions. [2024-11-07 00:35:51,293 INFO L78 Accepts]: Start accepts. Automaton has 251129 states and 358648 transitions. Word has length 131 [2024-11-07 00:35:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:35:51,294 INFO L471 AbstractCegarLoop]: Abstraction has 251129 states and 358648 transitions. [2024-11-07 00:35:51,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:35:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 251129 states and 358648 transitions. [2024-11-07 00:35:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-07 00:35:51,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:35:51,309 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:51,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:35:51,309 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:35:51,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:35:51,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2098875790, now seen corresponding path program 1 times [2024-11-07 00:35:51,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:35:51,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976600408] [2024-11-07 00:35:51,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:35:51,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:35:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:35:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 00:35:51,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:35:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976600408] [2024-11-07 00:35:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976600408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:35:51,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:35:51,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:35:51,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473313620] [2024-11-07 00:35:51,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:35:51,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 00:35:51,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:35:51,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 00:35:51,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:35:51,586 INFO L87 Difference]: Start difference. First operand 251129 states and 358648 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 9 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)