./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.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.5.2.ufo.BOUNDED-10.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', '6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b'] 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.5.2.ufo.BOUNDED-10.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 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:26:45,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:26:45,797 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:26:45,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:26:45,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:26:45,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:26:45,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:26:45,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:26:45,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:26:45,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:26:45,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:26:45,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:26:45,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:26:45,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:26:45,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:26:45,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:26:45,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:26:45,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:26:45,841 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 -> 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b [2024-11-07 00:26:46,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:26:46,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:26:46,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:26:46,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:26:46,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:26:46,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-07 00:26:47,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:26:47,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:26:47,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-07 00:26:47,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/910eb66cc/34fc0a5e247a4e189fb46acf65f4434c/FLAG4eab42c3d [2024-11-07 00:26:47,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/910eb66cc/34fc0a5e247a4e189fb46acf65f4434c [2024-11-07 00:26:47,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:26:47,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:26:47,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:26:47,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:26:47,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:26:47,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:26:47" (1/1) ... [2024-11-07 00:26:47,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1a7644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:47, skipping insertion in model container [2024-11-07 00:26:47,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:26:47" (1/1) ... [2024-11-07 00:26:48,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:26:48,281 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.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-11-07 00:26:48,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:26:48,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:26:48,433 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.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-11-07 00:26:48,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:26:48,496 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:26:48,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48 WrapperNode [2024-11-07 00:26:48,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:26:48,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:26:48,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:26:48,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:26:48,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,568 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 853 [2024-11-07 00:26:48,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:26:48,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:26:48,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:26:48,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:26:48,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,593 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,625 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 00:26:48,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:26:48,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:26:48,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:26:48,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:26:48,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (1/1) ... [2024-11-07 00:26:48,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:26:48,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:26:48,736 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 00:26:48,740 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 00:26:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:26:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:26:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:26:48,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:26:48,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:26:48,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:26:49,923 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-07 00:26:49,924 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:26:49,941 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:26:49,941 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:26:49,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:26:49 BoogieIcfgContainer [2024-11-07 00:26:49,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:26:49,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:26:49,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:26:49,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:26:49,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:26:47" (1/3) ... [2024-11-07 00:26:49,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eafe0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:26:49, skipping insertion in model container [2024-11-07 00:26:49,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:26:48" (2/3) ... [2024-11-07 00:26:49,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eafe0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:26:49, skipping insertion in model container [2024-11-07 00:26:49,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:26:49" (3/3) ... [2024-11-07 00:26:49,952 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-07 00:26:49,968 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:26:49,969 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:26:50,046 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:26:50,069 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;@623386b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:26:50,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:26:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 205 states have (on average 1.721951219512195) internal successors, (353), 206 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:50,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 00:26:50,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:50,092 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] [2024-11-07 00:26:50,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:50,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:50,148 INFO L85 PathProgramCache]: Analyzing trace with hash -374161539, now seen corresponding path program 1 times [2024-11-07 00:26:50,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:50,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551659049] [2024-11-07 00:26:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:50,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:50,997 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 00:26:50,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:50,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551659049] [2024-11-07 00:26:50,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551659049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:51,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:26:51,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450464695] [2024-11-07 00:26:51,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:51,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:51,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:51,034 INFO L87 Difference]: Start difference. First operand has 207 states, 205 states have (on average 1.721951219512195) internal successors, (353), 206 states have internal predecessors, (353), 0 states have call successors, (0), 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 00:26:51,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:51,421 INFO L93 Difference]: Finished difference Result 829 states and 1341 transitions. [2024-11-07 00:26:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:26:51,424 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 00:26:51,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:51,446 INFO L225 Difference]: With dead ends: 829 [2024-11-07 00:26:51,446 INFO L226 Difference]: Without dead ends: 714 [2024-11-07 00:26:51,453 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 00:26:51,455 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 2307 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:51,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 2437 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-07 00:26:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 315. [2024-11-07 00:26:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.4968152866242037) internal successors, (470), 314 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 470 transitions. [2024-11-07 00:26:51,530 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 470 transitions. Word has length 80 [2024-11-07 00:26:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:51,531 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 470 transitions. [2024-11-07 00:26:51,531 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 00:26:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 470 transitions. [2024-11-07 00:26:51,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 00:26:51,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:51,534 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 00:26:51,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:26:51,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:51,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1024475534, now seen corresponding path program 1 times [2024-11-07 00:26:51,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:51,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288795815] [2024-11-07 00:26:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:51,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:51,993 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 00:26:51,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:51,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288795815] [2024-11-07 00:26:51,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288795815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:51,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:51,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:26:51,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780342482] [2024-11-07 00:26:51,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:51,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:26:51,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:51,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:26:51,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:26:51,997 INFO L87 Difference]: Start difference. First operand 315 states and 470 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 00:26:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:52,294 INFO L93 Difference]: Finished difference Result 1371 states and 2113 transitions. [2024-11-07 00:26:52,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:26:52,299 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 00:26:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:52,307 INFO L225 Difference]: With dead ends: 1371 [2024-11-07 00:26:52,307 INFO L226 Difference]: Without dead ends: 1133 [2024-11-07 00:26:52,310 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 00:26:52,311 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 1037 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:52,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1459 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:52,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2024-11-07 00:26:52,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1125. [2024-11-07 00:26:52,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.5364768683274022) internal successors, (1727), 1124 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1727 transitions. [2024-11-07 00:26:52,397 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1727 transitions. Word has length 81 [2024-11-07 00:26:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:52,398 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1727 transitions. [2024-11-07 00:26:52,398 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 00:26:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1727 transitions. [2024-11-07 00:26:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:52,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:52,407 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 00:26:52,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:26:52,407 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:52,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:52,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1872628209, now seen corresponding path program 1 times [2024-11-07 00:26:52,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:52,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170547664] [2024-11-07 00:26:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:52,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:52,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170547664] [2024-11-07 00:26:52,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170547664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:52,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:52,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:52,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026925195] [2024-11-07 00:26:52,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:52,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:52,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:52,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:52,631 INFO L87 Difference]: Start difference. First operand 1125 states and 1727 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 00:26:52,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:52,957 INFO L93 Difference]: Finished difference Result 3049 states and 4737 transitions. [2024-11-07 00:26:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:52,957 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 00:26:52,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:52,968 INFO L225 Difference]: With dead ends: 3049 [2024-11-07 00:26:52,969 INFO L226 Difference]: Without dead ends: 1979 [2024-11-07 00:26:52,973 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 00:26:52,975 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1144 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 281 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 00:26:52,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 281 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:26:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2024-11-07 00:26:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1977. [2024-11-07 00:26:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1976 states have (on average 1.5455465587044535) internal successors, (3054), 1976 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 3054 transitions. [2024-11-07 00:26:53,050 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 3054 transitions. Word has length 82 [2024-11-07 00:26:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:53,050 INFO L471 AbstractCegarLoop]: Abstraction has 1977 states and 3054 transitions. [2024-11-07 00:26:53,051 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 00:26:53,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 3054 transitions. [2024-11-07 00:26:53,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:53,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:53,060 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 00:26:53,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:26:53,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:53,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:53,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1410777150, now seen corresponding path program 1 times [2024-11-07 00:26:53,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:53,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570885521] [2024-11-07 00:26:53,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:53,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:53,275 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 00:26:53,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:53,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570885521] [2024-11-07 00:26:53,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570885521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:53,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:53,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061252810] [2024-11-07 00:26:53,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:53,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:53,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:53,276 INFO L87 Difference]: Start difference. First operand 1977 states and 3054 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 00:26:53,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:53,565 INFO L93 Difference]: Finished difference Result 5484 states and 8533 transitions. [2024-11-07 00:26:53,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:53,566 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 00:26:53,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:53,583 INFO L225 Difference]: With dead ends: 5484 [2024-11-07 00:26:53,584 INFO L226 Difference]: Without dead ends: 3585 [2024-11-07 00:26:53,589 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 00:26:53,591 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1102 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:53,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 285 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:53,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2024-11-07 00:26:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3583. [2024-11-07 00:26:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 3582 states have (on average 1.5466219988833054) internal successors, (5540), 3582 states have internal predecessors, (5540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 5540 transitions. [2024-11-07 00:26:53,687 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 5540 transitions. Word has length 82 [2024-11-07 00:26:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:53,687 INFO L471 AbstractCegarLoop]: Abstraction has 3583 states and 5540 transitions. [2024-11-07 00:26:53,687 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 00:26:53,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 5540 transitions. [2024-11-07 00:26:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:53,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:53,691 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 00:26:53,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:26:53,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:53,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:53,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1933266084, now seen corresponding path program 1 times [2024-11-07 00:26:53,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:53,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251590433] [2024-11-07 00:26:53,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:53,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:53,870 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 00:26:53,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:53,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251590433] [2024-11-07 00:26:53,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251590433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:53,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:53,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:53,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433465099] [2024-11-07 00:26:53,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:53,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:53,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:53,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:53,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:53,874 INFO L87 Difference]: Start difference. First operand 3583 states and 5540 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 00:26:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:54,174 INFO L93 Difference]: Finished difference Result 10066 states and 15649 transitions. [2024-11-07 00:26:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:54,174 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 00:26:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:54,203 INFO L225 Difference]: With dead ends: 10066 [2024-11-07 00:26:54,203 INFO L226 Difference]: Without dead ends: 6625 [2024-11-07 00:26:54,212 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 00:26:54,214 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1056 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:54,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 296 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2024-11-07 00:26:54,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6623. [2024-11-07 00:26:54,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 1.5468136514648143) internal successors, (10243), 6622 states have internal predecessors, (10243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:54,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 10243 transitions. [2024-11-07 00:26:54,441 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 10243 transitions. Word has length 82 [2024-11-07 00:26:54,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:54,441 INFO L471 AbstractCegarLoop]: Abstraction has 6623 states and 10243 transitions. [2024-11-07 00:26:54,442 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 00:26:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 10243 transitions. [2024-11-07 00:26:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 00:26:54,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:54,449 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 00:26:54,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:26:54,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:54,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:54,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1259416403, now seen corresponding path program 1 times [2024-11-07 00:26:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:54,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077323691] [2024-11-07 00:26:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:54,636 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 00:26:54,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:54,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077323691] [2024-11-07 00:26:54,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077323691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:54,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:54,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:54,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963573629] [2024-11-07 00:26:54,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:54,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:54,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:54,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:54,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:54,639 INFO L87 Difference]: Start difference. First operand 6623 states and 10243 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 00:26:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:54,980 INFO L93 Difference]: Finished difference Result 19244 states and 29834 transitions. [2024-11-07 00:26:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:54,981 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 00:26:54,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:55,035 INFO L225 Difference]: With dead ends: 19244 [2024-11-07 00:26:55,035 INFO L226 Difference]: Without dead ends: 12729 [2024-11-07 00:26:55,054 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 00:26:55,055 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1058 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:55,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 287 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12729 states. [2024-11-07 00:26:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12729 to 12727. [2024-11-07 00:26:55,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12727 states, 12726 states have (on average 1.541882759704542) internal successors, (19622), 12726 states have internal predecessors, (19622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12727 states to 12727 states and 19622 transitions. [2024-11-07 00:26:55,474 INFO L78 Accepts]: Start accepts. Automaton has 12727 states and 19622 transitions. Word has length 82 [2024-11-07 00:26:55,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:55,474 INFO L471 AbstractCegarLoop]: Abstraction has 12727 states and 19622 transitions. [2024-11-07 00:26:55,474 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 00:26:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 12727 states and 19622 transitions. [2024-11-07 00:26:55,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 00:26:55,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:55,479 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 00:26:55,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:26:55,480 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:55,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:55,480 INFO L85 PathProgramCache]: Analyzing trace with hash -407485162, now seen corresponding path program 1 times [2024-11-07 00:26:55,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:55,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813091406] [2024-11-07 00:26:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:55,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:55,694 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 00:26:55,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:55,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813091406] [2024-11-07 00:26:55,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813091406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:55,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:55,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380003423] [2024-11-07 00:26:55,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:55,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:55,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:55,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:55,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:55,697 INFO L87 Difference]: Start difference. First operand 12727 states and 19622 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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 00:26:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:56,093 INFO L93 Difference]: Finished difference Result 35617 states and 54998 transitions. [2024-11-07 00:26:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:56,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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 00:26:56,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:56,153 INFO L225 Difference]: With dead ends: 35617 [2024-11-07 00:26:56,154 INFO L226 Difference]: Without dead ends: 22954 [2024-11-07 00:26:56,172 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 00:26:56,173 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1155 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:56,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 286 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:26:56,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22954 states. [2024-11-07 00:26:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22954 to 22952. [2024-11-07 00:26:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22952 states, 22951 states have (on average 1.537449348612261) internal successors, (35286), 22951 states have internal predecessors, (35286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22952 states to 22952 states and 35286 transitions. [2024-11-07 00:26:56,698 INFO L78 Accepts]: Start accepts. Automaton has 22952 states and 35286 transitions. Word has length 83 [2024-11-07 00:26:56,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:56,698 INFO L471 AbstractCegarLoop]: Abstraction has 22952 states and 35286 transitions. [2024-11-07 00:26:56,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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 00:26:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 22952 states and 35286 transitions. [2024-11-07 00:26:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 00:26:56,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:56,706 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 00:26:56,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:26:56,707 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:56,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash 174469786, now seen corresponding path program 1 times [2024-11-07 00:26:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:56,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740957620] [2024-11-07 00:26:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:26:57,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:57,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740957620] [2024-11-07 00:26:57,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740957620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:57,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:57,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:26:57,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380811272] [2024-11-07 00:26:57,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:57,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:26:57,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:57,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:26:57,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:26:57,225 INFO L87 Difference]: Start difference. First operand 22952 states and 35286 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 00:26:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:57,324 INFO L93 Difference]: Finished difference Result 23530 states and 36151 transitions. [2024-11-07 00:26:57,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:26:57,325 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 00:26:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:57,383 INFO L225 Difference]: With dead ends: 23530 [2024-11-07 00:26:57,383 INFO L226 Difference]: Without dead ends: 23528 [2024-11-07 00:26:57,396 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 00:26:57,397 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:57,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:57,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23528 states. [2024-11-07 00:26:57,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23528 to 23528. [2024-11-07 00:26:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23528 states, 23527 states have (on average 1.524291239852085) internal successors, (35862), 23527 states have internal predecessors, (35862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23528 states to 23528 states and 35862 transitions. [2024-11-07 00:26:57,888 INFO L78 Accepts]: Start accepts. Automaton has 23528 states and 35862 transitions. Word has length 83 [2024-11-07 00:26:57,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:57,889 INFO L471 AbstractCegarLoop]: Abstraction has 23528 states and 35862 transitions. [2024-11-07 00:26:57,889 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 00:26:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 23528 states and 35862 transitions. [2024-11-07 00:26:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 00:26:57,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:57,897 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 00:26:57,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:26:57,898 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:57,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1373936999, now seen corresponding path program 1 times [2024-11-07 00:26:57,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:57,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224453941] [2024-11-07 00:26:57,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:57,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:58,222 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 00:26:58,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:58,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224453941] [2024-11-07 00:26:58,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224453941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:58,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:58,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:26:58,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988066208] [2024-11-07 00:26:58,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:58,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:26:58,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:58,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:26:58,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:26:58,225 INFO L87 Difference]: Start difference. First operand 23528 states and 35862 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 00:26:58,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:26:58,436 INFO L93 Difference]: Finished difference Result 65932 states and 100224 transitions. [2024-11-07 00:26:58,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:26:58,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 00:26:58,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:26:58,693 INFO L225 Difference]: With dead ends: 65932 [2024-11-07 00:26:58,693 INFO L226 Difference]: Without dead ends: 43210 [2024-11-07 00:26:58,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:26:58,728 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 226 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:26:58,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 600 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:26:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43210 states. [2024-11-07 00:26:59,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43210 to 43208. [2024-11-07 00:26:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43208 states, 43207 states have (on average 1.5104496956511677) internal successors, (65262), 43207 states have internal predecessors, (65262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:26:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43208 states to 43208 states and 65262 transitions. [2024-11-07 00:26:59,602 INFO L78 Accepts]: Start accepts. Automaton has 43208 states and 65262 transitions. Word has length 84 [2024-11-07 00:26:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:26:59,602 INFO L471 AbstractCegarLoop]: Abstraction has 43208 states and 65262 transitions. [2024-11-07 00:26:59,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 00:26:59,603 INFO L276 IsEmpty]: Start isEmpty. Operand 43208 states and 65262 transitions. [2024-11-07 00:26:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:26:59,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:26:59,612 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 00:26:59,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:26:59,612 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:26:59,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:26:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1979820424, now seen corresponding path program 1 times [2024-11-07 00:26:59,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:26:59,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212626615] [2024-11-07 00:26:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:26:59,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:26:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:26:59,730 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 00:26:59,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:26:59,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212626615] [2024-11-07 00:26:59,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212626615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:26:59,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:26:59,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:26:59,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475969584] [2024-11-07 00:26:59,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:26:59,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:26:59,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:26:59,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:26:59,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:26:59,732 INFO L87 Difference]: Start difference. First operand 43208 states and 65262 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 00:27:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:00,174 INFO L93 Difference]: Finished difference Result 99075 states and 149695 transitions. [2024-11-07 00:27:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:27:00,175 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 00:27:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:00,351 INFO L225 Difference]: With dead ends: 99075 [2024-11-07 00:27:00,351 INFO L226 Difference]: Without dead ends: 60625 [2024-11-07 00:27:00,414 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 00:27:00,415 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 200 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 552 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 00:27:00,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 552 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:27:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60625 states. [2024-11-07 00:27:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60625 to 43038. [2024-11-07 00:27:01,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43038 states, 43037 states have (on average 1.4981527522829194) internal successors, (64476), 43037 states have internal predecessors, (64476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43038 states to 43038 states and 64476 transitions. [2024-11-07 00:27:01,621 INFO L78 Accepts]: Start accepts. Automaton has 43038 states and 64476 transitions. Word has length 85 [2024-11-07 00:27:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:01,621 INFO L471 AbstractCegarLoop]: Abstraction has 43038 states and 64476 transitions. [2024-11-07 00:27:01,621 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 00:27:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 43038 states and 64476 transitions. [2024-11-07 00:27:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:01,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:01,631 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:01,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:27:01,631 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:01,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:01,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1374524072, now seen corresponding path program 1 times [2024-11-07 00:27:01,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:01,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702503892] [2024-11-07 00:27:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:01,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:01,719 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 00:27:01,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:01,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702503892] [2024-11-07 00:27:01,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702503892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:01,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:01,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:27:01,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831656763] [2024-11-07 00:27:01,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:01,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:27:01,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:01,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:27:01,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:27:01,722 INFO L87 Difference]: Start difference. First operand 43038 states and 64476 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 00:27:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:02,141 INFO L93 Difference]: Finished difference Result 84823 states and 126979 transitions. [2024-11-07 00:27:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:27:02,142 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 00:27:02,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:02,339 INFO L225 Difference]: With dead ends: 84823 [2024-11-07 00:27:02,339 INFO L226 Difference]: Without dead ends: 55043 [2024-11-07 00:27:02,373 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 00:27:02,374 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 537 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 00:27:02,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 537 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:27:02,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55043 states. [2024-11-07 00:27:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55043 to 54558. [2024-11-07 00:27:03,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54558 states, 54557 states have (on average 1.4773722895320491) internal successors, (80601), 54557 states have internal predecessors, (80601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54558 states to 54558 states and 80601 transitions. [2024-11-07 00:27:03,485 INFO L78 Accepts]: Start accepts. Automaton has 54558 states and 80601 transitions. Word has length 85 [2024-11-07 00:27:03,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:03,485 INFO L471 AbstractCegarLoop]: Abstraction has 54558 states and 80601 transitions. [2024-11-07 00:27:03,485 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 00:27:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 54558 states and 80601 transitions. [2024-11-07 00:27:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:03,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:03,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:03,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:27:03,493 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:03,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1153454217, now seen corresponding path program 1 times [2024-11-07 00:27:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331755710] [2024-11-07 00:27:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:03,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:27:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331755710] [2024-11-07 00:27:03,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331755710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:03,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:27:03,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645991297] [2024-11-07 00:27:03,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:03,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:27:03,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:03,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:27:03,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:27:03,570 INFO L87 Difference]: Start difference. First operand 54558 states and 80601 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 00:27:03,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:03,953 INFO L93 Difference]: Finished difference Result 90488 states and 133320 transitions. [2024-11-07 00:27:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:27:03,954 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 00:27:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:04,092 INFO L225 Difference]: With dead ends: 90488 [2024-11-07 00:27:04,092 INFO L226 Difference]: Without dead ends: 61934 [2024-11-07 00:27:04,134 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 00:27:04,135 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 171 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 535 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 00:27:04,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 535 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:27:04,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61934 states. [2024-11-07 00:27:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61934 to 61381. [2024-11-07 00:27:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61381 states, 61380 states have (on average 1.4515314434669273) internal successors, (89095), 61380 states have internal predecessors, (89095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61381 states to 61381 states and 89095 transitions. [2024-11-07 00:27:05,324 INFO L78 Accepts]: Start accepts. Automaton has 61381 states and 89095 transitions. Word has length 85 [2024-11-07 00:27:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:05,324 INFO L471 AbstractCegarLoop]: Abstraction has 61381 states and 89095 transitions. [2024-11-07 00:27:05,324 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 00:27:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 61381 states and 89095 transitions. [2024-11-07 00:27:05,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:05,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:05,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:05,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:27:05,331 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:05,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:05,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2097816686, now seen corresponding path program 1 times [2024-11-07 00:27:05,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:05,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208032731] [2024-11-07 00:27:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:05,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:05,404 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 00:27:05,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:05,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208032731] [2024-11-07 00:27:05,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208032731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:05,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:05,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:27:05,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909866700] [2024-11-07 00:27:05,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:05,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:27:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:27:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:27:05,407 INFO L87 Difference]: Start difference. First operand 61381 states and 89095 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 00:27:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:05,683 INFO L93 Difference]: Finished difference Result 83830 states and 121194 transitions. [2024-11-07 00:27:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:27:05,684 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 00:27:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:05,809 INFO L225 Difference]: With dead ends: 83830 [2024-11-07 00:27:05,810 INFO L226 Difference]: Without dead ends: 62996 [2024-11-07 00:27:05,850 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 00:27:05,852 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 536 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 00:27:05,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 536 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:27:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62996 states. [2024-11-07 00:27:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62996 to 56786. [2024-11-07 00:27:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56786 states, 56785 states have (on average 1.4281236241965307) internal successors, (81096), 56785 states have internal predecessors, (81096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56786 states to 56786 states and 81096 transitions. [2024-11-07 00:27:07,066 INFO L78 Accepts]: Start accepts. Automaton has 56786 states and 81096 transitions. Word has length 85 [2024-11-07 00:27:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:07,066 INFO L471 AbstractCegarLoop]: Abstraction has 56786 states and 81096 transitions. [2024-11-07 00:27:07,066 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 00:27:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 56786 states and 81096 transitions. [2024-11-07 00:27:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:07,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:07,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:07,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:27:07,078 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:07,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1654109609, now seen corresponding path program 1 times [2024-11-07 00:27:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:07,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701509827] [2024-11-07 00:27:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:07,249 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 00:27:07,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:07,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701509827] [2024-11-07 00:27:07,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701509827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:07,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:07,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:07,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770492721] [2024-11-07 00:27:07,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:07,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:07,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:07,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:07,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:07,252 INFO L87 Difference]: Start difference. First operand 56786 states and 81096 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:08,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:08,093 INFO L93 Difference]: Finished difference Result 142549 states and 204892 transitions. [2024-11-07 00:27:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:08,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:08,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:08,386 INFO L225 Difference]: With dead ends: 142549 [2024-11-07 00:27:08,386 INFO L226 Difference]: Without dead ends: 116791 [2024-11-07 00:27:08,438 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 00:27:08,439 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 1661 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:08,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 1731 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:08,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116791 states. [2024-11-07 00:27:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116791 to 82307. [2024-11-07 00:27:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82307 states, 82306 states have (on average 1.427502247709766) internal successors, (117492), 82306 states have internal predecessors, (117492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:10,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82307 states to 82307 states and 117492 transitions. [2024-11-07 00:27:10,016 INFO L78 Accepts]: Start accepts. Automaton has 82307 states and 117492 transitions. Word has length 85 [2024-11-07 00:27:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:10,017 INFO L471 AbstractCegarLoop]: Abstraction has 82307 states and 117492 transitions. [2024-11-07 00:27:10,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 82307 states and 117492 transitions. [2024-11-07 00:27:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:10,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:10,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:10,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:27:10,024 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:10,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:10,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2103629176, now seen corresponding path program 1 times [2024-11-07 00:27:10,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:10,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449491272] [2024-11-07 00:27:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:10,448 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 00:27:10,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:10,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449491272] [2024-11-07 00:27:10,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449491272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:10,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:10,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:10,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108404395] [2024-11-07 00:27:10,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:10,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:10,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:10,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:10,450 INFO L87 Difference]: Start difference. First operand 82307 states and 117492 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:11,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:11,036 INFO L93 Difference]: Finished difference Result 152039 states and 218304 transitions. [2024-11-07 00:27:11,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:11,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:11,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:11,301 INFO L225 Difference]: With dead ends: 152039 [2024-11-07 00:27:11,302 INFO L226 Difference]: Without dead ends: 134313 [2024-11-07 00:27:11,366 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 00:27:11,367 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 1828 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:11,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 1621 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:11,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134313 states. [2024-11-07 00:27:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134313 to 99850. [2024-11-07 00:27:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99850 states, 99849 states have (on average 1.4279862592514698) internal successors, (142583), 99849 states have internal predecessors, (142583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99850 states to 99850 states and 142583 transitions. [2024-11-07 00:27:13,295 INFO L78 Accepts]: Start accepts. Automaton has 99850 states and 142583 transitions. Word has length 85 [2024-11-07 00:27:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:13,295 INFO L471 AbstractCegarLoop]: Abstraction has 99850 states and 142583 transitions. [2024-11-07 00:27:13,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 99850 states and 142583 transitions. [2024-11-07 00:27:13,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:13,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:13,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:13,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:27:13,305 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:13,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:13,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1303233550, now seen corresponding path program 1 times [2024-11-07 00:27:13,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:13,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821961809] [2024-11-07 00:27:13,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:13,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:13,494 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 00:27:13,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:13,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821961809] [2024-11-07 00:27:13,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821961809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:13,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:13,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354972810] [2024-11-07 00:27:13,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:13,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:13,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:13,498 INFO L87 Difference]: Start difference. First operand 99850 states and 142583 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:14,703 INFO L93 Difference]: Finished difference Result 150931 states and 216418 transitions. [2024-11-07 00:27:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:14,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:14,991 INFO L225 Difference]: With dead ends: 150931 [2024-11-07 00:27:14,991 INFO L226 Difference]: Without dead ends: 145781 [2024-11-07 00:27:15,045 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 00:27:15,046 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1763 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:15,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 1786 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:15,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145781 states. [2024-11-07 00:27:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145781 to 104926. [2024-11-07 00:27:16,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104926 states, 104925 states have (on average 1.4281534429354301) internal successors, (149849), 104925 states have internal predecessors, (149849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104926 states to 104926 states and 149849 transitions. [2024-11-07 00:27:17,088 INFO L78 Accepts]: Start accepts. Automaton has 104926 states and 149849 transitions. Word has length 85 [2024-11-07 00:27:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:17,088 INFO L471 AbstractCegarLoop]: Abstraction has 104926 states and 149849 transitions. [2024-11-07 00:27:17,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 104926 states and 149849 transitions. [2024-11-07 00:27:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 00:27:17,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:17,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:17,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:27:17,098 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:17,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash 854865847, now seen corresponding path program 1 times [2024-11-07 00:27:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566743412] [2024-11-07 00:27:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:17,254 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 00:27:17,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:17,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566743412] [2024-11-07 00:27:17,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566743412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:17,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:17,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:17,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816527277] [2024-11-07 00:27:17,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:17,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:17,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:17,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:17,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:17,255 INFO L87 Difference]: Start difference. First operand 104926 states and 149849 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:17,974 INFO L93 Difference]: Finished difference Result 162295 states and 232764 transitions. [2024-11-07 00:27:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-07 00:27:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:18,279 INFO L225 Difference]: With dead ends: 162295 [2024-11-07 00:27:18,279 INFO L226 Difference]: Without dead ends: 150761 [2024-11-07 00:27:18,749 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 00:27:18,750 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1567 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:18,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 2064 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:18,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150761 states. [2024-11-07 00:27:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150761 to 112150. [2024-11-07 00:27:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112150 states, 112149 states have (on average 1.4291612051823912) internal successors, (160279), 112149 states have internal predecessors, (160279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:20,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112150 states to 112150 states and 160279 transitions. [2024-11-07 00:27:20,655 INFO L78 Accepts]: Start accepts. Automaton has 112150 states and 160279 transitions. Word has length 85 [2024-11-07 00:27:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:20,656 INFO L471 AbstractCegarLoop]: Abstraction has 112150 states and 160279 transitions. [2024-11-07 00:27:20,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 112150 states and 160279 transitions. [2024-11-07 00:27:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 00:27:20,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:20,665 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 00:27:20,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:27:20,665 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:20,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:20,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2002786146, now seen corresponding path program 1 times [2024-11-07 00:27:20,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:20,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072755548] [2024-11-07 00:27:20,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:20,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:20,805 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 00:27:20,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:20,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072755548] [2024-11-07 00:27:20,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072755548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:20,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:20,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:27:20,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091474626] [2024-11-07 00:27:20,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:20,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:20,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:20,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:20,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:20,808 INFO L87 Difference]: Start difference. First operand 112150 states and 160279 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 00:27:22,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:22,070 INFO L93 Difference]: Finished difference Result 204104 states and 292816 transitions. [2024-11-07 00:27:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 00:27:22,071 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 00:27:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:22,378 INFO L225 Difference]: With dead ends: 204104 [2024-11-07 00:27:22,379 INFO L226 Difference]: Without dead ends: 176250 [2024-11-07 00:27:22,447 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 00:27:22,447 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 1666 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:22,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 2075 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:27:22,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176250 states. [2024-11-07 00:27:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176250 to 131139. [2024-11-07 00:27:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131139 states, 131138 states have (on average 1.4291128429593254) internal successors, (187411), 131138 states have internal predecessors, (187411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:24,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131139 states to 131139 states and 187411 transitions. [2024-11-07 00:27:24,929 INFO L78 Accepts]: Start accepts. Automaton has 131139 states and 187411 transitions. Word has length 86 [2024-11-07 00:27:24,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:24,929 INFO L471 AbstractCegarLoop]: Abstraction has 131139 states and 187411 transitions. [2024-11-07 00:27:24,929 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 00:27:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 131139 states and 187411 transitions. [2024-11-07 00:27:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 00:27:24,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:24,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:24,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:27:24,943 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:24,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:24,944 INFO L85 PathProgramCache]: Analyzing trace with hash 801309202, now seen corresponding path program 1 times [2024-11-07 00:27:24,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:24,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572685615] [2024-11-07 00:27:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:25,027 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 00:27:25,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:25,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572685615] [2024-11-07 00:27:25,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572685615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:25,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:25,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:27:25,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493038071] [2024-11-07 00:27:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:25,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:27:25,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:25,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:27:25,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:27:25,030 INFO L87 Difference]: Start difference. First operand 131139 states and 187411 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:26,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:26,107 INFO L93 Difference]: Finished difference Result 286521 states and 407656 transitions. [2024-11-07 00:27:26,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:27:26,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 00:27:26,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:26,987 INFO L225 Difference]: With dead ends: 286521 [2024-11-07 00:27:26,987 INFO L226 Difference]: Without dead ends: 160530 [2024-11-07 00:27:27,065 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 00:27:27,066 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 186 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 642 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 00:27:27,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:27:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160530 states. [2024-11-07 00:27:28,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160530 to 144010. [2024-11-07 00:27:28,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144010 states, 144009 states have (on average 1.3987945197869578) internal successors, (201439), 144009 states have internal predecessors, (201439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:29,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144010 states to 144010 states and 201439 transitions. [2024-11-07 00:27:29,023 INFO L78 Accepts]: Start accepts. Automaton has 144010 states and 201439 transitions. Word has length 88 [2024-11-07 00:27:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:29,023 INFO L471 AbstractCegarLoop]: Abstraction has 144010 states and 201439 transitions. [2024-11-07 00:27:29,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 144010 states and 201439 transitions. [2024-11-07 00:27:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 00:27:29,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:29,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:29,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:27:29,040 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:29,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:29,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2103833722, now seen corresponding path program 1 times [2024-11-07 00:27:29,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:29,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473570008] [2024-11-07 00:27:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:29,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:29,545 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 00:27:29,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:29,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473570008] [2024-11-07 00:27:29,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473570008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:29,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:29,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:27:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466589523] [2024-11-07 00:27:29,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:29,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:29,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:29,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:29,548 INFO L87 Difference]: Start difference. First operand 144010 states and 201439 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:31,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:31,138 INFO L93 Difference]: Finished difference Result 374384 states and 522448 transitions. [2024-11-07 00:27:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:27:31,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-07 00:27:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:31,784 INFO L225 Difference]: With dead ends: 374384 [2024-11-07 00:27:31,785 INFO L226 Difference]: Without dead ends: 320724 [2024-11-07 00:27:31,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:27:31,928 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 2119 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:31,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 570 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:27:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320724 states. [2024-11-07 00:27:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320724 to 144058. [2024-11-07 00:27:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144058 states, 144057 states have (on average 1.3987727080252956) internal successors, (201503), 144057 states have internal predecessors, (201503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144058 states to 144058 states and 201503 transitions. [2024-11-07 00:27:35,928 INFO L78 Accepts]: Start accepts. Automaton has 144058 states and 201503 transitions. Word has length 90 [2024-11-07 00:27:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:27:35,928 INFO L471 AbstractCegarLoop]: Abstraction has 144058 states and 201503 transitions. [2024-11-07 00:27:35,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:35,928 INFO L276 IsEmpty]: Start isEmpty. Operand 144058 states and 201503 transitions. [2024-11-07 00:27:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 00:27:35,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:27:35,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:27:35,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:27:35,944 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:27:35,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:27:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1598638401, now seen corresponding path program 1 times [2024-11-07 00:27:35,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:27:35,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814916922] [2024-11-07 00:27:35,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:27:35,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:27:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:27:36,076 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 00:27:36,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:27:36,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814916922] [2024-11-07 00:27:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814916922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:27:36,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:27:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:27:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367604878] [2024-11-07 00:27:36,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:27:36,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:27:36,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:27:36,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:27:36,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:27:36,079 INFO L87 Difference]: Start difference. First operand 144058 states and 201503 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:27:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:27:38,393 INFO L93 Difference]: Finished difference Result 487580 states and 678267 transitions. [2024-11-07 00:27:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 00:27:38,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-07 00:27:38,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:27:39,275 INFO L225 Difference]: With dead ends: 487580 [2024-11-07 00:27:39,275 INFO L226 Difference]: Without dead ends: 418690 [2024-11-07 00:27:39,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:27:39,419 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1886 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:27:39,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 572 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 00:27:39,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418690 states.