./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-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', 'ff8f3f7dc837fc67a7020fd9a9dd65135ef198f3603f2c180bcb5ad9943191ea'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-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 ff8f3f7dc837fc67a7020fd9a9dd65135ef198f3603f2c180bcb5ad9943191ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:26:17,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:26:17,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:26:17,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:26:17,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:26:17,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:26:17,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:26:17,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:26:17,981 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:26:17,981 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:26:17,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:26:17,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:26:17,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:26:17,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:26:17,983 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:26:17,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:26:17,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:26:17,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:26:17,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:26:17,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:26:17,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:26:17,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:26:17,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:26:17,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:26:17,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:26:17,984 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:26:17,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:26:17,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:26:17,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:26:17,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:26:17,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:26:17,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:26:17,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:26:17,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:26:17,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:26:17,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:26:17,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:26:17,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:26:17,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:26:17,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:26:17,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:26:17,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:26:17,987 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 -> ff8f3f7dc837fc67a7020fd9a9dd65135ef198f3603f2c180bcb5ad9943191ea [2024-11-07 00:26:18,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:26:18,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:26:18,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:26:18,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:26:18,286 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:26:18,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:26:19,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:26:20,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:26:20,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:26:20,111 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31c7cacee/b4ae1af87bfd4dcda18fe7a57733d512/FLAG441b37232 [2024-11-07 00:26:20,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31c7cacee/b4ae1af87bfd4dcda18fe7a57733d512 [2024-11-07 00:26:20,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:26:20,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:26:20,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:26:20,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:26:20,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:26:20,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4848c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20, skipping insertion in model container [2024-11-07 00:26:20,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:26:20,424 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-11-07 00:26:20,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:26:20,499 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:26:20,553 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-11-07 00:26:20,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:26:20,606 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:26:20,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20 WrapperNode [2024-11-07 00:26:20,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:26:20,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:26:20,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:26:20,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:26:20,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,682 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 866 [2024-11-07 00:26:20,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:26:20,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:26:20,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:26:20,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:26:20,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,702 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,733 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 00:26:20,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:26:20,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:26:20,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:26:20,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:26:20,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (1/1) ... [2024-11-07 00:26:20,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:26:20,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:26:20,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 00:26:20,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 00:26:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:26:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:26:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:26:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:26:20,975 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:26:20,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:26:21,823 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-07 00:26:21,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:26:21,842 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:26:21,846 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:26:21,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:26:21 BoogieIcfgContainer [2024-11-07 00:26:21,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:26:21,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:26:21,849 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:26:21,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:26:21,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:26:20" (1/3) ... [2024-11-07 00:26:21,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ca01ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:26:21, skipping insertion in model container [2024-11-07 00:26:21,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:20" (2/3) ... [2024-11-07 00:26:21,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ca01ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:26:21, skipping insertion in model container [2024-11-07 00:26:21,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:26:21" (3/3) ... [2024-11-07 00:26:21,861 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-07 00:26:21,876 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:26:21,877 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:26:21,946 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:26:21,958 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;@75d34b1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:26:21,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:26:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 213 states have (on average 1.7183098591549295) internal successors, (366), 214 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:26:21,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:21,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:21,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:21,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:21,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1949123702, now seen corresponding path program 1 times [2024-11-07 00:26:21,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:21,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982293426] [2024-11-07 00:26:21,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:21,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:22,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:22,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982293426] [2024-11-07 00:26:22,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982293426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:22,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:22,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:26:22,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368872992] [2024-11-07 00:26:22,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:22,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:22,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:22,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:22,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:22,868 INFO L87 Difference]: Start difference. First operand has 215 states, 213 states have (on average 1.7183098591549295) internal successors, (366), 214 states have internal predecessors, (366), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:23,202 INFO L93 Difference]: Finished difference Result 867 states and 1402 transitions. [2024-11-07 00:26:23,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:26:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-07 00:26:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:23,221 INFO L225 Difference]: With dead ends: 867 [2024-11-07 00:26:23,222 INFO L226 Difference]: Without dead ends: 747 [2024-11-07 00:26:23,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:26:23,229 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 2370 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:23,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 2217 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:26:23,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-07 00:26:23,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 328. [2024-11-07 00:26:23,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.507645259938838) internal successors, (493), 327 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 493 transitions. [2024-11-07 00:26:23,301 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 493 transitions. Word has length 80 [2024-11-07 00:26:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:23,302 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 493 transitions. [2024-11-07 00:26:23,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 493 transitions. [2024-11-07 00:26:23,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:23,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:23,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:23,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:26:23,306 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:23,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:23,306 INFO L85 PathProgramCache]: Analyzing trace with hash 13403552, now seen corresponding path program 1 times [2024-11-07 00:26:23,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:23,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735709966] [2024-11-07 00:26:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:23,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:23,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:23,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735709966] [2024-11-07 00:26:23,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735709966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:23,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:23,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:26:23,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806608316] [2024-11-07 00:26:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:23,809 INFO L87 Difference]: Start difference. First operand 328 states and 493 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:24,078 INFO L93 Difference]: Finished difference Result 1424 states and 2210 transitions. [2024-11-07 00:26:24,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:26:24,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-07 00:26:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:24,086 INFO L225 Difference]: With dead ends: 1424 [2024-11-07 00:26:24,086 INFO L226 Difference]: Without dead ends: 1176 [2024-11-07 00:26:24,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:24,090 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 1766 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:24,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 1350 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-11-07 00:26:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1168. [2024-11-07 00:26:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5475578406169666) internal successors, (1806), 1167 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1806 transitions. [2024-11-07 00:26:24,166 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1806 transitions. Word has length 81 [2024-11-07 00:26:24,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:24,166 INFO L471 AbstractCegarLoop]: Abstraction has 1168 states and 1806 transitions. [2024-11-07 00:26:24,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1806 transitions. [2024-11-07 00:26:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:24,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:24,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:24,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:26:24,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:24,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2050473049, now seen corresponding path program 1 times [2024-11-07 00:26:24,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:24,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003576220] [2024-11-07 00:26:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:24,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:24,397 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 00:26:24,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:24,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003576220] [2024-11-07 00:26:24,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003576220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:24,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:24,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:24,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948355306] [2024-11-07 00:26:24,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:24,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:24,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:24,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:24,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:24,400 INFO L87 Difference]: Start difference. First operand 1168 states and 1806 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:24,684 INFO L93 Difference]: Finished difference Result 3105 states and 4859 transitions. [2024-11-07 00:26:24,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:24,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-07 00:26:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:24,694 INFO L225 Difference]: With dead ends: 3105 [2024-11-07 00:26:24,694 INFO L226 Difference]: Without dead ends: 2018 [2024-11-07 00:26:24,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:24,697 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1168 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:24,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 298 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2024-11-07 00:26:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2016. [2024-11-07 00:26:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 2015 states have (on average 1.5563275434243176) internal successors, (3136), 2015 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 3136 transitions. [2024-11-07 00:26:24,779 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 3136 transitions. Word has length 82 [2024-11-07 00:26:24,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:24,780 INFO L471 AbstractCegarLoop]: Abstraction has 2016 states and 3136 transitions. [2024-11-07 00:26:24,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 3136 transitions. [2024-11-07 00:26:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:24,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:24,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:24,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:26:24,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:24,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash 269412074, now seen corresponding path program 1 times [2024-11-07 00:26:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:24,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208242891] [2024-11-07 00:26:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:24,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:24,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208242891] [2024-11-07 00:26:24,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208242891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:24,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:24,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:24,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132401303] [2024-11-07 00:26:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:24,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:24,970 INFO L87 Difference]: Start difference. First operand 2016 states and 3136 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:25,286 INFO L93 Difference]: Finished difference Result 5537 states and 8684 transitions. [2024-11-07 00:26:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:25,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-07 00:26:25,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:25,304 INFO L225 Difference]: With dead ends: 5537 [2024-11-07 00:26:25,304 INFO L226 Difference]: Without dead ends: 3632 [2024-11-07 00:26:25,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:25,312 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1134 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:25,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 298 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:26:25,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2024-11-07 00:26:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3630. [2024-11-07 00:26:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 3629 states have (on average 1.5593827500688895) internal successors, (5659), 3629 states have internal predecessors, (5659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 5659 transitions. [2024-11-07 00:26:25,414 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 5659 transitions. Word has length 82 [2024-11-07 00:26:25,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:25,415 INFO L471 AbstractCegarLoop]: Abstraction has 3630 states and 5659 transitions. [2024-11-07 00:26:25,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 5659 transitions. [2024-11-07 00:26:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:25,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:25,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:25,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:26:25,423 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:25,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:25,424 INFO L85 PathProgramCache]: Analyzing trace with hash 778028859, now seen corresponding path program 1 times [2024-11-07 00:26:25,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:25,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278172969] [2024-11-07 00:26:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:25,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:25,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:25,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278172969] [2024-11-07 00:26:25,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278172969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:25,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:25,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:25,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375494131] [2024-11-07 00:26:25,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:25,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:25,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:25,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:25,636 INFO L87 Difference]: Start difference. First operand 3630 states and 5659 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:25,946 INFO L93 Difference]: Finished difference Result 10317 states and 16188 transitions. [2024-11-07 00:26:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:25,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-07 00:26:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:25,978 INFO L225 Difference]: With dead ends: 10317 [2024-11-07 00:26:25,978 INFO L226 Difference]: Without dead ends: 6832 [2024-11-07 00:26:25,987 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 00:26:25,988 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1116 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:25,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 309 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:25,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2024-11-07 00:26:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6830. [2024-11-07 00:26:26,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 6829 states have (on average 1.5618685019768634) internal successors, (10666), 6829 states have internal predecessors, (10666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 10666 transitions. [2024-11-07 00:26:26,188 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 10666 transitions. Word has length 82 [2024-11-07 00:26:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:26,190 INFO L471 AbstractCegarLoop]: Abstraction has 6830 states and 10666 transitions. [2024-11-07 00:26:26,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 10666 transitions. [2024-11-07 00:26:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:26,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:26,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:26,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:26:26,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:26,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:26,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1091254392, now seen corresponding path program 1 times [2024-11-07 00:26:26,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:26,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521830222] [2024-11-07 00:26:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:26,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:26,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:26,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521830222] [2024-11-07 00:26:26,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521830222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:26,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:26,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:26,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683674226] [2024-11-07 00:26:26,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:26,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:26,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:26,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:26,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:26,357 INFO L87 Difference]: Start difference. First operand 6830 states and 10666 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:26,696 INFO L93 Difference]: Finished difference Result 20144 states and 31540 transitions. [2024-11-07 00:26:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:26,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-07 00:26:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:26,768 INFO L225 Difference]: With dead ends: 20144 [2024-11-07 00:26:26,768 INFO L226 Difference]: Without dead ends: 13372 [2024-11-07 00:26:26,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:26,785 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1182 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:26,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 296 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:26,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13372 states. [2024-11-07 00:26:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13372 to 13370. [2024-11-07 00:26:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13370 states, 13369 states have (on average 1.5566609320068816) internal successors, (20811), 13369 states have internal predecessors, (20811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13370 states to 13370 states and 20811 transitions. [2024-11-07 00:26:27,195 INFO L78 Accepts]: Start accepts. Automaton has 13370 states and 20811 transitions. Word has length 82 [2024-11-07 00:26:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:27,195 INFO L471 AbstractCegarLoop]: Abstraction has 13370 states and 20811 transitions. [2024-11-07 00:26:27,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 13370 states and 20811 transitions. [2024-11-07 00:26:27,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:27,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:27,200 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:27,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:26:27,201 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:27,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash 980453495, now seen corresponding path program 1 times [2024-11-07 00:26:27,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:27,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275241528] [2024-11-07 00:26:27,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:27,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:27,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275241528] [2024-11-07 00:26:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275241528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:27,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:27,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:27,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266214073] [2024-11-07 00:26:27,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:27,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:27,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:27,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:27,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:27,364 INFO L87 Difference]: Start difference. First operand 13370 states and 20811 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:27,823 INFO L93 Difference]: Finished difference Result 39777 states and 61996 transitions. [2024-11-07 00:26:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:27,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-07 00:26:27,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:27,891 INFO L225 Difference]: With dead ends: 39777 [2024-11-07 00:26:27,892 INFO L226 Difference]: Without dead ends: 26449 [2024-11-07 00:26:27,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:27,910 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1210 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:27,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 292 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26449 states. [2024-11-07 00:26:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26449 to 26447. [2024-11-07 00:26:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26447 states, 26446 states have (on average 1.5480601981396052) internal successors, (40940), 26446 states have internal predecessors, (40940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26447 states to 26447 states and 40940 transitions. [2024-11-07 00:26:28,563 INFO L78 Accepts]: Start accepts. Automaton has 26447 states and 40940 transitions. Word has length 82 [2024-11-07 00:26:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:28,563 INFO L471 AbstractCegarLoop]: Abstraction has 26447 states and 40940 transitions. [2024-11-07 00:26:28,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:28,564 INFO L276 IsEmpty]: Start isEmpty. Operand 26447 states and 40940 transitions. [2024-11-07 00:26:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 00:26:28,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:28,571 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:28,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:26:28,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:28,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1660254060, now seen corresponding path program 1 times [2024-11-07 00:26:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:28,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295910779] [2024-11-07 00:26:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295910779] [2024-11-07 00:26:29,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295910779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:29,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:29,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:26:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647732833] [2024-11-07 00:26:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:29,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:29,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:29,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:29,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:29,257 INFO L87 Difference]: Start difference. First operand 26447 states and 40940 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:29,378 INFO L93 Difference]: Finished difference Result 27089 states and 41901 transitions. [2024-11-07 00:26:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:29,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-07 00:26:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:29,459 INFO L225 Difference]: With dead ends: 27089 [2024-11-07 00:26:29,459 INFO L226 Difference]: Without dead ends: 27087 [2024-11-07 00:26:29,476 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 00:26:29,477 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 0 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:29,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1166 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:29,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27087 states. [2024-11-07 00:26:29,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27087 to 27087. [2024-11-07 00:26:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27087 states, 27086 states have (on average 1.5351103891309164) internal successors, (41580), 27086 states have internal predecessors, (41580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:30,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27087 states to 27087 states and 41580 transitions. [2024-11-07 00:26:30,083 INFO L78 Accepts]: Start accepts. Automaton has 27087 states and 41580 transitions. Word has length 83 [2024-11-07 00:26:30,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:30,084 INFO L471 AbstractCegarLoop]: Abstraction has 27087 states and 41580 transitions. [2024-11-07 00:26:30,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 27087 states and 41580 transitions. [2024-11-07 00:26:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:30,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:30,092 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] [2024-11-07 00:26:30,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:26:30,092 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:30,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash 207675476, now seen corresponding path program 1 times [2024-11-07 00:26:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:30,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770695349] [2024-11-07 00:26:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:30,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:30,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770695349] [2024-11-07 00:26:30,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770695349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:30,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:30,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:26:30,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890283139] [2024-11-07 00:26:30,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:30,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:26:30,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:30,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:26:30,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:26:30,581 INFO L87 Difference]: Start difference. First operand 27087 states and 41580 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:31,439 INFO L93 Difference]: Finished difference Result 51186 states and 78028 transitions. [2024-11-07 00:26:31,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:26:31,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-07 00:26:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:31,519 INFO L225 Difference]: With dead ends: 51186 [2024-11-07 00:26:31,520 INFO L226 Difference]: Without dead ends: 36874 [2024-11-07 00:26:31,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:26:31,550 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 893 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:31,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 946 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:26:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36874 states. [2024-11-07 00:26:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36874 to 27380. [2024-11-07 00:26:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27380 states, 27379 states have (on average 1.53340151210782) internal successors, (41983), 27379 states have internal predecessors, (41983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27380 states to 27380 states and 41983 transitions. [2024-11-07 00:26:32,165 INFO L78 Accepts]: Start accepts. Automaton has 27380 states and 41983 transitions. Word has length 84 [2024-11-07 00:26:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:32,165 INFO L471 AbstractCegarLoop]: Abstraction has 27380 states and 41983 transitions. [2024-11-07 00:26:32,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 27380 states and 41983 transitions. [2024-11-07 00:26:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:32,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:32,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:26:32,175 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:32,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:32,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1543265332, now seen corresponding path program 1 times [2024-11-07 00:26:32,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:32,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626039380] [2024-11-07 00:26:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:32,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:32,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:32,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626039380] [2024-11-07 00:26:32,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626039380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:32,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:32,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:26:32,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12695437] [2024-11-07 00:26:32,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:32,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:26:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:32,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:26:32,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:26:32,797 INFO L87 Difference]: Start difference. First operand 27380 states and 41983 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:33,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:33,622 INFO L93 Difference]: Finished difference Result 43968 states and 66810 transitions. [2024-11-07 00:26:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:26:33,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-07 00:26:33,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:33,688 INFO L225 Difference]: With dead ends: 43968 [2024-11-07 00:26:33,688 INFO L226 Difference]: Without dead ends: 35134 [2024-11-07 00:26:33,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:26:33,717 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1477 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:33,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 1039 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:26:33,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35134 states. [2024-11-07 00:26:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35134 to 27916. [2024-11-07 00:26:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27916 states, 27915 states have (on average 1.5315780046569945) internal successors, (42754), 27915 states have internal predecessors, (42754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27916 states to 27916 states and 42754 transitions. [2024-11-07 00:26:34,269 INFO L78 Accepts]: Start accepts. Automaton has 27916 states and 42754 transitions. Word has length 84 [2024-11-07 00:26:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:34,269 INFO L471 AbstractCegarLoop]: Abstraction has 27916 states and 42754 transitions. [2024-11-07 00:26:34,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 27916 states and 42754 transitions. [2024-11-07 00:26:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:34,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:34,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:34,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:26:34,280 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:34,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:34,281 INFO L85 PathProgramCache]: Analyzing trace with hash 940384276, now seen corresponding path program 1 times [2024-11-07 00:26:34,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:34,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534409143] [2024-11-07 00:26:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:34,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:34,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:34,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534409143] [2024-11-07 00:26:34,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534409143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:34,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:34,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:26:34,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308617855] [2024-11-07 00:26:34,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:34,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:26:34,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:26:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:26:34,808 INFO L87 Difference]: Start difference. First operand 27916 states and 42754 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:35,602 INFO L93 Difference]: Finished difference Result 44985 states and 68500 transitions. [2024-11-07 00:26:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 00:26:35,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-07 00:26:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:35,678 INFO L225 Difference]: With dead ends: 44985 [2024-11-07 00:26:35,678 INFO L226 Difference]: Without dead ends: 41678 [2024-11-07 00:26:35,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-07 00:26:35,705 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1307 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:35,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1131 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:26:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41678 states. [2024-11-07 00:26:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41678 to 27916. [2024-11-07 00:26:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27916 states, 27915 states have (on average 1.5314347125201504) internal successors, (42750), 27915 states have internal predecessors, (42750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27916 states to 27916 states and 42750 transitions. [2024-11-07 00:26:36,549 INFO L78 Accepts]: Start accepts. Automaton has 27916 states and 42750 transitions. Word has length 84 [2024-11-07 00:26:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:36,549 INFO L471 AbstractCegarLoop]: Abstraction has 27916 states and 42750 transitions. [2024-11-07 00:26:36,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:36,549 INFO L276 IsEmpty]: Start isEmpty. Operand 27916 states and 42750 transitions. [2024-11-07 00:26:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:36,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:36,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:36,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:26:36,560 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:36,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:36,561 INFO L85 PathProgramCache]: Analyzing trace with hash -43340684, now seen corresponding path program 1 times [2024-11-07 00:26:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771593770] [2024-11-07 00:26:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:36,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:36,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771593770] [2024-11-07 00:26:36,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771593770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:36,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:36,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:26:36,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012474977] [2024-11-07 00:26:36,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:36,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:26:36,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:36,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:26:36,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:26:36,974 INFO L87 Difference]: Start difference. First operand 27916 states and 42750 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:37,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:37,962 INFO L93 Difference]: Finished difference Result 62816 states and 95541 transitions. [2024-11-07 00:26:37,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:26:37,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-07 00:26:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:38,037 INFO L225 Difference]: With dead ends: 62816 [2024-11-07 00:26:38,037 INFO L226 Difference]: Without dead ends: 43097 [2024-11-07 00:26:38,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:26:38,076 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1396 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:38,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 1235 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:26:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43097 states. [2024-11-07 00:26:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43097 to 28333. [2024-11-07 00:26:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28333 states, 28332 states have (on average 1.5279189608922772) internal successors, (43289), 28332 states have internal predecessors, (43289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28333 states to 28333 states and 43289 transitions. [2024-11-07 00:26:38,863 INFO L78 Accepts]: Start accepts. Automaton has 28333 states and 43289 transitions. Word has length 84 [2024-11-07 00:26:38,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:38,864 INFO L471 AbstractCegarLoop]: Abstraction has 28333 states and 43289 transitions. [2024-11-07 00:26:38,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 28333 states and 43289 transitions. [2024-11-07 00:26:38,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:38,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:38,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:38,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:26:38,874 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:38,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:38,875 INFO L85 PathProgramCache]: Analyzing trace with hash 558481556, now seen corresponding path program 1 times [2024-11-07 00:26:38,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:38,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798391184] [2024-11-07 00:26:38,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:38,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:39,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:39,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798391184] [2024-11-07 00:26:39,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798391184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:39,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:39,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 00:26:39,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470183632] [2024-11-07 00:26:39,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:39,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 00:26:39,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:39,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 00:26:39,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:26:39,413 INFO L87 Difference]: Start difference. First operand 28333 states and 43289 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:40,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:40,388 INFO L93 Difference]: Finished difference Result 70381 states and 106925 transitions. [2024-11-07 00:26:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:26:40,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-07 00:26:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:40,468 INFO L225 Difference]: With dead ends: 70381 [2024-11-07 00:26:40,468 INFO L226 Difference]: Without dead ends: 43491 [2024-11-07 00:26:40,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-07 00:26:40,500 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 1413 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:40,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 1248 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 00:26:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43491 states. [2024-11-07 00:26:40,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43491 to 28692. [2024-11-07 00:26:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28692 states, 28691 states have (on average 1.5231257188665435) internal successors, (43700), 28691 states have internal predecessors, (43700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28692 states to 28692 states and 43700 transitions. [2024-11-07 00:26:41,205 INFO L78 Accepts]: Start accepts. Automaton has 28692 states and 43700 transitions. Word has length 84 [2024-11-07 00:26:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:41,206 INFO L471 AbstractCegarLoop]: Abstraction has 28692 states and 43700 transitions. [2024-11-07 00:26:41,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 28692 states and 43700 transitions. [2024-11-07 00:26:41,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:41,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:41,214 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:41,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:26:41,215 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:41,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:41,215 INFO L85 PathProgramCache]: Analyzing trace with hash -809169967, now seen corresponding path program 1 times [2024-11-07 00:26:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692063862] [2024-11-07 00:26:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:41,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:41,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692063862] [2024-11-07 00:26:41,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692063862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:41,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:41,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:41,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199866687] [2024-11-07 00:26:41,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:41,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:41,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:41,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:41,371 INFO L87 Difference]: Start difference. First operand 28692 states and 43700 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:41,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:41,551 INFO L93 Difference]: Finished difference Result 45194 states and 69000 transitions. [2024-11-07 00:26:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:41,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:41,606 INFO L225 Difference]: With dead ends: 45194 [2024-11-07 00:26:41,606 INFO L226 Difference]: Without dead ends: 33452 [2024-11-07 00:26:41,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:41,633 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 182 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:41,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:41,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33452 states. [2024-11-07 00:26:42,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33452 to 33166. [2024-11-07 00:26:42,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33166 states, 33165 states have (on average 1.507311925222373) internal successors, (49990), 33165 states have internal predecessors, (49990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33166 states to 33166 states and 49990 transitions. [2024-11-07 00:26:42,350 INFO L78 Accepts]: Start accepts. Automaton has 33166 states and 49990 transitions. Word has length 85 [2024-11-07 00:26:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:42,350 INFO L471 AbstractCegarLoop]: Abstraction has 33166 states and 49990 transitions. [2024-11-07 00:26:42,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 33166 states and 49990 transitions. [2024-11-07 00:26:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:42,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:42,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:42,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:26:42,358 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:42,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1668333247, now seen corresponding path program 1 times [2024-11-07 00:26:42,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:42,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193489990] [2024-11-07 00:26:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:42,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:42,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193489990] [2024-11-07 00:26:42,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193489990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:42,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:42,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:42,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914329801] [2024-11-07 00:26:42,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:42,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:26:42,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:42,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:26:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:26:42,519 INFO L87 Difference]: Start difference. First operand 33166 states and 49990 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:43,006 INFO L93 Difference]: Finished difference Result 91098 states and 137552 transitions. [2024-11-07 00:26:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:43,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:43,234 INFO L225 Difference]: With dead ends: 91098 [2024-11-07 00:26:43,249 INFO L226 Difference]: Without dead ends: 60280 [2024-11-07 00:26:43,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:43,318 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 202 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:43,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 729 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:43,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60280 states. [2024-11-07 00:26:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60280 to 59910. [2024-11-07 00:26:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59910 states, 59909 states have (on average 1.4955682785558095) internal successors, (89598), 59909 states have internal predecessors, (89598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59910 states to 59910 states and 89598 transitions. [2024-11-07 00:26:44,125 INFO L78 Accepts]: Start accepts. Automaton has 59910 states and 89598 transitions. Word has length 85 [2024-11-07 00:26:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:44,125 INFO L471 AbstractCegarLoop]: Abstraction has 59910 states and 89598 transitions. [2024-11-07 00:26:44,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 59910 states and 89598 transitions. [2024-11-07 00:26:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:44,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:44,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:44,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:26:44,132 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:44,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:44,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1032087708, now seen corresponding path program 1 times [2024-11-07 00:26:44,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:44,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053139374] [2024-11-07 00:26:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:44,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:44,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:44,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053139374] [2024-11-07 00:26:44,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053139374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:44,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:44,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:44,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355877471] [2024-11-07 00:26:44,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:44,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:44,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:44,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:44,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:44,214 INFO L87 Difference]: Start difference. First operand 59910 states and 89598 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:44,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:44,644 INFO L93 Difference]: Finished difference Result 77865 states and 116222 transitions. [2024-11-07 00:26:44,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:44,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:44,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:44,761 INFO L225 Difference]: With dead ends: 77865 [2024-11-07 00:26:44,761 INFO L226 Difference]: Without dead ends: 61419 [2024-11-07 00:26:44,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:44,805 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 174 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:44,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 573 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61419 states. [2024-11-07 00:26:46,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61419 to 56369. [2024-11-07 00:26:46,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56369 states, 56368 states have (on average 1.4750567697984671) internal successors, (83146), 56368 states have internal predecessors, (83146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56369 states to 56369 states and 83146 transitions. [2024-11-07 00:26:46,306 INFO L78 Accepts]: Start accepts. Automaton has 56369 states and 83146 transitions. Word has length 85 [2024-11-07 00:26:46,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:46,306 INFO L471 AbstractCegarLoop]: Abstraction has 56369 states and 83146 transitions. [2024-11-07 00:26:46,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 56369 states and 83146 transitions. [2024-11-07 00:26:46,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:46,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:46,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:46,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:26:46,314 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:46,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:46,315 INFO L85 PathProgramCache]: Analyzing trace with hash 602240274, now seen corresponding path program 1 times [2024-11-07 00:26:46,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:46,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310781433] [2024-11-07 00:26:46,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:46,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:46,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:46,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310781433] [2024-11-07 00:26:46,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310781433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:46,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:46,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:46,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394663921] [2024-11-07 00:26:46,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:46,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:46,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:46,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:46,392 INFO L87 Difference]: Start difference. First operand 56369 states and 83146 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:46,995 INFO L93 Difference]: Finished difference Result 145972 states and 215811 transitions. [2024-11-07 00:26:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:46,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:46,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:47,169 INFO L225 Difference]: With dead ends: 145972 [2024-11-07 00:26:47,169 INFO L226 Difference]: Without dead ends: 97795 [2024-11-07 00:26:47,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:47,230 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 211 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:47,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 562 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:47,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97795 states. [2024-11-07 00:26:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97795 to 97641. [2024-11-07 00:26:48,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97641 states, 97640 states have (on average 1.4680253994264645) internal successors, (143338), 97640 states have internal predecessors, (143338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97641 states to 97641 states and 143338 transitions. [2024-11-07 00:26:48,706 INFO L78 Accepts]: Start accepts. Automaton has 97641 states and 143338 transitions. Word has length 85 [2024-11-07 00:26:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:48,706 INFO L471 AbstractCegarLoop]: Abstraction has 97641 states and 143338 transitions. [2024-11-07 00:26:48,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 97641 states and 143338 transitions. [2024-11-07 00:26:48,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:48,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:48,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:48,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:26:48,717 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:48,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1239856238, now seen corresponding path program 1 times [2024-11-07 00:26:48,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:48,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845559660] [2024-11-07 00:26:48,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:48,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:48,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:48,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845559660] [2024-11-07 00:26:48,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845559660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:48,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:48,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:48,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063280942] [2024-11-07 00:26:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:48,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:48,808 INFO L87 Difference]: Start difference. First operand 97641 states and 143338 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:49,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:49,540 INFO L93 Difference]: Finished difference Result 187609 states and 275404 transitions. [2024-11-07 00:26:49,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:49,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:49,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:50,073 INFO L225 Difference]: With dead ends: 187609 [2024-11-07 00:26:50,074 INFO L226 Difference]: Without dead ends: 116803 [2024-11-07 00:26:50,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:50,136 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 188 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:50,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 670 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116803 states. [2024-11-07 00:26:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116803 to 115753. [2024-11-07 00:26:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115753 states, 115752 states have (on average 1.4433357522980164) internal successors, (167069), 115752 states have internal predecessors, (167069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115753 states to 115753 states and 167069 transitions. [2024-11-07 00:26:51,731 INFO L78 Accepts]: Start accepts. Automaton has 115753 states and 167069 transitions. Word has length 85 [2024-11-07 00:26:51,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:51,732 INFO L471 AbstractCegarLoop]: Abstraction has 115753 states and 167069 transitions. [2024-11-07 00:26:51,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 115753 states and 167069 transitions. [2024-11-07 00:26:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:51,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:51,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:51,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:26:51,743 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:51,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2007724431, now seen corresponding path program 1 times [2024-11-07 00:26:51,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:51,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553672283] [2024-11-07 00:26:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:51,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:51,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:51,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:51,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553672283] [2024-11-07 00:26:51,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553672283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:51,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:51,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:51,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861771288] [2024-11-07 00:26:51,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:51,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:51,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:51,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:51,794 INFO L87 Difference]: Start difference. First operand 115753 states and 167069 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:52,865 INFO L93 Difference]: Finished difference Result 245739 states and 353729 transitions. [2024-11-07 00:26:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:26:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:26:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:53,095 INFO L225 Difference]: With dead ends: 245739 [2024-11-07 00:26:53,095 INFO L226 Difference]: Without dead ends: 139409 [2024-11-07 00:26:53,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:53,199 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 201 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:53,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 560 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:26:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139409 states. [2024-11-07 00:26:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139409 to 138471. [2024-11-07 00:26:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138471 states, 138470 states have (on average 1.4137213836932188) internal successors, (195758), 138470 states have internal predecessors, (195758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138471 states to 138471 states and 195758 transitions. [2024-11-07 00:26:55,261 INFO L78 Accepts]: Start accepts. Automaton has 138471 states and 195758 transitions. Word has length 85 [2024-11-07 00:26:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:55,261 INFO L471 AbstractCegarLoop]: Abstraction has 138471 states and 195758 transitions. [2024-11-07 00:26:55,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 138471 states and 195758 transitions. [2024-11-07 00:26:55,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:26:55,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:55,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:26:55,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:26:55,269 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:55,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:55,270 INFO L85 PathProgramCache]: Analyzing trace with hash 450366669, now seen corresponding path program 1 times [2024-11-07 00:26:55,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:55,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214711099] [2024-11-07 00:26:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:55,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:55,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:55,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214711099] [2024-11-07 00:26:55,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214711099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:55,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:55,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:26:55,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196261784] [2024-11-07 00:26:55,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:55,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:55,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:55,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:55,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:55,830 INFO L87 Difference]: Start difference. First operand 138471 states and 195758 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:56,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:56,740 INFO L93 Difference]: Finished difference Result 331716 states and 472780 transitions. [2024-11-07 00:26:56,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:26:56,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 00:26:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:57,720 INFO L225 Difference]: With dead ends: 331716 [2024-11-07 00:26:57,720 INFO L226 Difference]: Without dead ends: 281809 [2024-11-07 00:26:57,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:26:57,824 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 1769 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:57,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 1709 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:26:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281809 states. [2024-11-07 00:27:00,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281809 to 187767. [2024-11-07 00:27:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187767 states, 187766 states have (on average 1.4142017191610834) internal successors, (265539), 187766 states have internal predecessors, (265539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187767 states to 187767 states and 265539 transitions. [2024-11-07 00:27:01,617 INFO L78 Accepts]: Start accepts. Automaton has 187767 states and 265539 transitions. Word has length 86 [2024-11-07 00:27:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:01,618 INFO L471 AbstractCegarLoop]: Abstraction has 187767 states and 265539 transitions. [2024-11-07 00:27:01,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 187767 states and 265539 transitions. [2024-11-07 00:27:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:27:01,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:01,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:01,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:27:01,624 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:01,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1550139528, now seen corresponding path program 1 times [2024-11-07 00:27:01,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:01,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779796606] [2024-11-07 00:27:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:01,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:01,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:01,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779796606] [2024-11-07 00:27:01,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779796606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:01,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:01,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:01,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458269370] [2024-11-07 00:27:01,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:01,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:01,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:01,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:01,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:01,795 INFO L87 Difference]: Start difference. First operand 187767 states and 265539 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:03,351 INFO L93 Difference]: Finished difference Result 346409 states and 492956 transitions. [2024-11-07 00:27:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 00:27:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:03,914 INFO L225 Difference]: With dead ends: 346409 [2024-11-07 00:27:03,914 INFO L226 Difference]: Without dead ends: 313890 [2024-11-07 00:27:03,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:27:03,973 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 1868 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:03,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 1695 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:04,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313890 states. [2024-11-07 00:27:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313890 to 208204. [2024-11-07 00:27:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208204 states, 208203 states have (on average 1.4158777731348733) internal successors, (294790), 208203 states have internal predecessors, (294790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208204 states to 208204 states and 294790 transitions. [2024-11-07 00:27:07,980 INFO L78 Accepts]: Start accepts. Automaton has 208204 states and 294790 transitions. Word has length 86 [2024-11-07 00:27:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:07,980 INFO L471 AbstractCegarLoop]: Abstraction has 208204 states and 294790 transitions. [2024-11-07 00:27:07,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 208204 states and 294790 transitions. [2024-11-07 00:27:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:27:07,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:07,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:07,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:27:07,990 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:07,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash -989600111, now seen corresponding path program 1 times [2024-11-07 00:27:07,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:07,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839004892] [2024-11-07 00:27:07,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:07,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:08,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:08,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839004892] [2024-11-07 00:27:08,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839004892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:08,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:08,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913773274] [2024-11-07 00:27:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:08,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:08,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:08,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:08,135 INFO L87 Difference]: Start difference. First operand 208204 states and 294790 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:09,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:09,864 INFO L93 Difference]: Finished difference Result 342782 states and 487283 transitions. [2024-11-07 00:27:09,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:09,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 00:27:09,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:10,462 INFO L225 Difference]: With dead ends: 342782 [2024-11-07 00:27:10,463 INFO L226 Difference]: Without dead ends: 328227 [2024-11-07 00:27:10,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:27:10,542 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1773 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:10,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 1822 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328227 states. [2024-11-07 00:27:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328227 to 222541. [2024-11-07 00:27:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222541 states, 222540 states have (on average 1.4160195919834637) internal successors, (315121), 222540 states have internal predecessors, (315121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222541 states to 222541 states and 315121 transitions. [2024-11-07 00:27:14,990 INFO L78 Accepts]: Start accepts. Automaton has 222541 states and 315121 transitions. Word has length 86 [2024-11-07 00:27:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:14,991 INFO L471 AbstractCegarLoop]: Abstraction has 222541 states and 315121 transitions. [2024-11-07 00:27:14,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 222541 states and 315121 transitions. [2024-11-07 00:27:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:27:15,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:15,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:15,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:27:15,000 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:15,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash -305204276, now seen corresponding path program 1 times [2024-11-07 00:27:15,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:15,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986430798] [2024-11-07 00:27:15,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:15,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:15,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:15,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986430798] [2024-11-07 00:27:15,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986430798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:15,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:15,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:15,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454576589] [2024-11-07 00:27:15,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:15,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:15,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:15,136 INFO L87 Difference]: Start difference. First operand 222541 states and 315121 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:17,325 INFO L93 Difference]: Finished difference Result 438696 states and 624345 transitions. [2024-11-07 00:27:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 00:27:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:18,055 INFO L225 Difference]: With dead ends: 438696 [2024-11-07 00:27:18,055 INFO L226 Difference]: Without dead ends: 377293 [2024-11-07 00:27:18,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:27:18,160 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1676 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:18,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2089 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:18,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377293 states. [2024-11-07 00:27:22,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377293 to 255333. [2024-11-07 00:27:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255333 states, 255332 states have (on average 1.417303745711466) internal successors, (361883), 255332 states have internal predecessors, (361883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:22,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255333 states to 255333 states and 361883 transitions. [2024-11-07 00:27:22,806 INFO L78 Accepts]: Start accepts. Automaton has 255333 states and 361883 transitions. Word has length 86 [2024-11-07 00:27:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:22,806 INFO L471 AbstractCegarLoop]: Abstraction has 255333 states and 361883 transitions. [2024-11-07 00:27:22,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 255333 states and 361883 transitions. [2024-11-07 00:27:22,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:27:22,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:22,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:22,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:27:22,815 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:22,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:22,816 INFO L85 PathProgramCache]: Analyzing trace with hash 643153923, now seen corresponding path program 1 times [2024-11-07 00:27:22,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:22,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906356853] [2024-11-07 00:27:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:22,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906356853] [2024-11-07 00:27:22,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906356853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:22,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:22,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084975410] [2024-11-07 00:27:22,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:22,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:22,939 INFO L87 Difference]: Start difference. First operand 255333 states and 361883 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)