./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c'] 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.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:23:49,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:23:49,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:23:49,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:23:49,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:23:49,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:23:49,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:23:49,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:23:49,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:23:49,223 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:23:49,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:23:49,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:23:49,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:23:49,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:23:49,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:23:49,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:23:49,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:23:49,225 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:23:49,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:23:49,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:23:49,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:23:49,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:23:49,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:23:49,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:23:49,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:23:49,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:23:49,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:23:49,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:23:49,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:23:49,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:23:49,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:23:49,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:23:49,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:23:49,228 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 -> afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c [2024-11-07 00:23:49,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:23:49,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:23:49,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:23:49,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:23:49,585 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:23:49,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-07 00:23:51,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:23:51,405 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:23:51,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-07 00:23:51,427 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fb2ad8efd/11278598b1a145979ea00818c49adb2e/FLAG039d573be [2024-11-07 00:23:51,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fb2ad8efd/11278598b1a145979ea00818c49adb2e [2024-11-07 00:23:51,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:23:51,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:23:51,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:23:51,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:23:51,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:23:51,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:23:51" (1/1) ... [2024-11-07 00:23:51,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f63181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:51, skipping insertion in model container [2024-11-07 00:23:51,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:23:51" (1/1) ... [2024-11-07 00:23:51,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:23:51,792 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.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[12887,12900] [2024-11-07 00:23:51,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:23:51,906 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:23:51,982 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.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[12887,12900] [2024-11-07 00:23:52,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:23:52,051 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:23:52,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52 WrapperNode [2024-11-07 00:23:52,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:23:52,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:23:52,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:23:52,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:23:52,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,153 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1463 [2024-11-07 00:23:52,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:23:52,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:23:52,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:23:52,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:23:52,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,169 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,207 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 00:23:52,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,257 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,289 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:23:52,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:23:52,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:23:52,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:23:52,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (1/1) ... [2024-11-07 00:23:52,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:23:52,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:23:52,347 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 00:23:52,350 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 00:23:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:23:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:23:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:23:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:23:52,498 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:23:52,500 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:23:53,711 INFO L? ?]: Removed 201 outVars from TransFormulas that were not future-live. [2024-11-07 00:23:53,712 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:23:53,739 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:23:53,743 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 00:23:53,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:23:53 BoogieIcfgContainer [2024-11-07 00:23:53,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:23:53,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:23:53,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:23:53,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:23:53,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:23:51" (1/3) ... [2024-11-07 00:23:53,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb0515a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:23:53, skipping insertion in model container [2024-11-07 00:23:53,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:23:52" (2/3) ... [2024-11-07 00:23:53,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb0515a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:23:53, skipping insertion in model container [2024-11-07 00:23:53,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:23:53" (3/3) ... [2024-11-07 00:23:53,754 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-07 00:23:53,767 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:23:53,768 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 00:23:53,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:23:53,851 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;@63adda88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:23:53,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 00:23:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 423 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:53,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-07 00:23:53,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:53,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:23:53,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:53,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:53,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1764715796, now seen corresponding path program 1 times [2024-11-07 00:23:53,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:53,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577153850] [2024-11-07 00:23:53,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:53,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:54,603 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 00:23:54,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:54,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577153850] [2024-11-07 00:23:54,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577153850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:54,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:54,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:23:54,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888186944] [2024-11-07 00:23:54,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:54,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:23:54,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:54,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:23:54,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:23:54,633 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 423 states have internal predecessors, (693), 0 states have call successors, (0), 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 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:54,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:54,823 INFO L93 Difference]: Finished difference Result 823 states and 1337 transitions. [2024-11-07 00:23:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:23:54,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-07 00:23:54,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:54,843 INFO L225 Difference]: With dead ends: 823 [2024-11-07 00:23:54,844 INFO L226 Difference]: Without dead ends: 421 [2024-11-07 00:23:54,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 00:23:54,853 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 125 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:54,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1896 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:23:54,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-07 00:23:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-07 00:23:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.561904761904762) internal successors, (656), 420 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 656 transitions. [2024-11-07 00:23:54,947 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 656 transitions. Word has length 107 [2024-11-07 00:23:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:54,948 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 656 transitions. [2024-11-07 00:23:54,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:54,949 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 656 transitions. [2024-11-07 00:23:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-07 00:23:54,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:54,959 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:54,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:23:54,960 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:54,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:54,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1708138426, now seen corresponding path program 1 times [2024-11-07 00:23:54,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:54,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56793176] [2024-11-07 00:23:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:54,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:55,209 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 00:23:55,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:55,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56793176] [2024-11-07 00:23:55,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56793176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:55,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:55,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:55,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049443328] [2024-11-07 00:23:55,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:55,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:55,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:55,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:55,215 INFO L87 Difference]: Start difference. First operand 421 states and 656 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:55,307 INFO L93 Difference]: Finished difference Result 1045 states and 1651 transitions. [2024-11-07 00:23:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:55,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-07 00:23:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:55,312 INFO L225 Difference]: With dead ends: 1045 [2024-11-07 00:23:55,313 INFO L226 Difference]: Without dead ends: 665 [2024-11-07 00:23:55,314 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 00:23:55,315 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 473 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:55,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1362 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:23:55,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-07 00:23:55,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-07 00:23:55,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.56797583081571) internal successors, (1038), 662 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1038 transitions. [2024-11-07 00:23:55,360 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1038 transitions. Word has length 130 [2024-11-07 00:23:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:55,360 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1038 transitions. [2024-11-07 00:23:55,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,360 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1038 transitions. [2024-11-07 00:23:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-07 00:23:55,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:55,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:55,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:23:55,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:55,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2058824093, now seen corresponding path program 1 times [2024-11-07 00:23:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:55,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763434992] [2024-11-07 00:23:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:55,570 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 00:23:55,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:55,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763434992] [2024-11-07 00:23:55,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763434992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:55,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:55,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110610509] [2024-11-07 00:23:55,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:55,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:55,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:55,574 INFO L87 Difference]: Start difference. First operand 663 states and 1038 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:55,652 INFO L93 Difference]: Finished difference Result 1679 states and 2652 transitions. [2024-11-07 00:23:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:55,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-07 00:23:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:55,660 INFO L225 Difference]: With dead ends: 1679 [2024-11-07 00:23:55,664 INFO L226 Difference]: Without dead ends: 1070 [2024-11-07 00:23:55,666 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 00:23:55,666 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 459 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:55,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1131 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:23:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2024-11-07 00:23:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2024-11-07 00:23:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 1.5679475164011247) internal successors, (1673), 1067 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1673 transitions. [2024-11-07 00:23:55,723 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1673 transitions. Word has length 133 [2024-11-07 00:23:55,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:55,723 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1673 transitions. [2024-11-07 00:23:55,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1673 transitions. [2024-11-07 00:23:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-07 00:23:55,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:55,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:55,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:23:55,730 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:55,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:55,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2046394113, now seen corresponding path program 1 times [2024-11-07 00:23:55,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:55,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158276674] [2024-11-07 00:23:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:55,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:55,891 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 00:23:55,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:55,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158276674] [2024-11-07 00:23:55,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158276674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:55,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:55,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:55,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032866209] [2024-11-07 00:23:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:55,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:55,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:55,896 INFO L87 Difference]: Start difference. First operand 1068 states and 1673 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:55,976 INFO L93 Difference]: Finished difference Result 2718 states and 4276 transitions. [2024-11-07 00:23:55,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:55,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-07 00:23:55,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:55,986 INFO L225 Difference]: With dead ends: 2718 [2024-11-07 00:23:55,986 INFO L226 Difference]: Without dead ends: 1717 [2024-11-07 00:23:55,992 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 00:23:55,993 INFO L432 NwaCegarLoop]: 760 mSDtfsCounter, 443 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:55,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1234 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:23:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2024-11-07 00:23:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1715. [2024-11-07 00:23:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 1.560676779463244) internal successors, (2675), 1714 states have internal predecessors, (2675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2675 transitions. [2024-11-07 00:23:56,086 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2675 transitions. Word has length 136 [2024-11-07 00:23:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:56,086 INFO L471 AbstractCegarLoop]: Abstraction has 1715 states and 2675 transitions. [2024-11-07 00:23:56,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:56,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2675 transitions. [2024-11-07 00:23:56,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 00:23:56,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:56,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:56,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:23:56,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:56,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1063364304, now seen corresponding path program 1 times [2024-11-07 00:23:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:56,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840907962] [2024-11-07 00:23:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:56,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:56,223 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 00:23:56,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:56,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840907962] [2024-11-07 00:23:56,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840907962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:56,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:56,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:56,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108437398] [2024-11-07 00:23:56,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:56,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:56,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:56,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:56,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:56,230 INFO L87 Difference]: Start difference. First operand 1715 states and 2675 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:56,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:56,314 INFO L93 Difference]: Finished difference Result 4315 states and 6729 transitions. [2024-11-07 00:23:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:56,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-07 00:23:56,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:56,328 INFO L225 Difference]: With dead ends: 4315 [2024-11-07 00:23:56,328 INFO L226 Difference]: Without dead ends: 2680 [2024-11-07 00:23:56,331 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 00:23:56,334 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 428 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:56,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1170 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:23:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2024-11-07 00:23:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2678. [2024-11-07 00:23:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2677 states have (on average 1.5438924168845722) internal successors, (4133), 2677 states have internal predecessors, (4133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 4133 transitions. [2024-11-07 00:23:56,435 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 4133 transitions. Word has length 139 [2024-11-07 00:23:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:56,436 INFO L471 AbstractCegarLoop]: Abstraction has 2678 states and 4133 transitions. [2024-11-07 00:23:56,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 4133 transitions. [2024-11-07 00:23:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-07 00:23:56,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:56,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:56,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:23:56,445 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:56,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:56,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1743940332, now seen corresponding path program 1 times [2024-11-07 00:23:56,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:56,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661710087] [2024-11-07 00:23:56,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:56,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:56,696 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 00:23:56,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:56,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661710087] [2024-11-07 00:23:56,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661710087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:56,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:56,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:23:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837329688] [2024-11-07 00:23:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:56,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:23:56,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:56,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:23:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:23:56,700 INFO L87 Difference]: Start difference. First operand 2678 states and 4133 transitions. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:57,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:57,090 INFO L93 Difference]: Finished difference Result 14017 states and 21619 transitions. [2024-11-07 00:23:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:23:57,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-07 00:23:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:57,143 INFO L225 Difference]: With dead ends: 14017 [2024-11-07 00:23:57,144 INFO L226 Difference]: Without dead ends: 11423 [2024-11-07 00:23:57,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:23:57,156 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 3458 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:57,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 3344 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:23:57,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11423 states. [2024-11-07 00:23:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11423 to 5188. [2024-11-07 00:23:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5188 states, 5187 states have (on average 1.5211104684788894) internal successors, (7890), 5187 states have internal predecessors, (7890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:57,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 7890 transitions. [2024-11-07 00:23:57,445 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 7890 transitions. Word has length 142 [2024-11-07 00:23:57,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:57,447 INFO L471 AbstractCegarLoop]: Abstraction has 5188 states and 7890 transitions. [2024-11-07 00:23:57,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 7890 transitions. [2024-11-07 00:23:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-07 00:23:57,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:57,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:57,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 00:23:57,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:57,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash -444562950, now seen corresponding path program 1 times [2024-11-07 00:23:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:57,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687432602] [2024-11-07 00:23:57,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:57,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:57,580 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 00:23:57,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:57,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687432602] [2024-11-07 00:23:57,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687432602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:57,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:57,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:57,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542491692] [2024-11-07 00:23:57,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:57,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:57,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:57,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:57,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:57,583 INFO L87 Difference]: Start difference. First operand 5188 states and 7890 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:57,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:57,736 INFO L93 Difference]: Finished difference Result 14633 states and 22199 transitions. [2024-11-07 00:23:57,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:57,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-07 00:23:57,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:57,789 INFO L225 Difference]: With dead ends: 14633 [2024-11-07 00:23:57,789 INFO L226 Difference]: Without dead ends: 9675 [2024-11-07 00:23:57,798 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 00:23:57,799 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 466 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:57,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1159 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:23:57,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2024-11-07 00:23:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 9673. [2024-11-07 00:23:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9673 states, 9672 states have (on average 1.5039288668320927) internal successors, (14546), 9672 states have internal predecessors, (14546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9673 states to 9673 states and 14546 transitions. [2024-11-07 00:23:58,100 INFO L78 Accepts]: Start accepts. Automaton has 9673 states and 14546 transitions. Word has length 146 [2024-11-07 00:23:58,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:58,101 INFO L471 AbstractCegarLoop]: Abstraction has 9673 states and 14546 transitions. [2024-11-07 00:23:58,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9673 states and 14546 transitions. [2024-11-07 00:23:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-07 00:23:58,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:58,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:58,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 00:23:58,122 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:58,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1034943005, now seen corresponding path program 1 times [2024-11-07 00:23:58,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:58,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242494543] [2024-11-07 00:23:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:58,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:23:58,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242494543] [2024-11-07 00:23:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242494543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:58,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488663217] [2024-11-07 00:23:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:58,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:58,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:58,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:58,223 INFO L87 Difference]: Start difference. First operand 9673 states and 14546 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:58,458 INFO L93 Difference]: Finished difference Result 26793 states and 40069 transitions. [2024-11-07 00:23:58,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:58,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-07 00:23:58,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:58,503 INFO L225 Difference]: With dead ends: 26793 [2024-11-07 00:23:58,504 INFO L226 Difference]: Without dead ends: 17840 [2024-11-07 00:23:58,520 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 00:23:58,522 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 448 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:58,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1159 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:23:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17840 states. [2024-11-07 00:23:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17840 to 17838. [2024-11-07 00:23:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17838 states, 17837 states have (on average 1.4804058978527779) internal successors, (26406), 17837 states have internal predecessors, (26406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17838 states to 17838 states and 26406 transitions. [2024-11-07 00:23:59,131 INFO L78 Accepts]: Start accepts. Automaton has 17838 states and 26406 transitions. Word has length 146 [2024-11-07 00:23:59,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:23:59,131 INFO L471 AbstractCegarLoop]: Abstraction has 17838 states and 26406 transitions. [2024-11-07 00:23:59,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 17838 states and 26406 transitions. [2024-11-07 00:23:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-07 00:23:59,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:23:59,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:23:59,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 00:23:59,167 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:23:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:23:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1198580260, now seen corresponding path program 1 times [2024-11-07 00:23:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:23:59,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326765064] [2024-11-07 00:23:59,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:23:59,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:23:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:23:59,306 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 00:23:59,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:23:59,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326765064] [2024-11-07 00:23:59,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326765064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:23:59,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:23:59,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:23:59,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365807399] [2024-11-07 00:23:59,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:23:59,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:23:59,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:23:59,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:23:59,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:23:59,307 INFO L87 Difference]: Start difference. First operand 17838 states and 26406 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:23:59,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:23:59,564 INFO L93 Difference]: Finished difference Result 50669 states and 74634 transitions. [2024-11-07 00:23:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:23:59,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-07 00:23:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:23:59,656 INFO L225 Difference]: With dead ends: 50669 [2024-11-07 00:23:59,656 INFO L226 Difference]: Without dead ends: 33147 [2024-11-07 00:23:59,691 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 00:23:59,694 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 485 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:23:59,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1159 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:23:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33147 states. [2024-11-07 00:24:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33147 to 33145. [2024-11-07 00:24:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33145 states, 33144 states have (on average 1.4571868211440986) internal successors, (48297), 33144 states have internal predecessors, (48297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33145 states to 33145 states and 48297 transitions. [2024-11-07 00:24:01,011 INFO L78 Accepts]: Start accepts. Automaton has 33145 states and 48297 transitions. Word has length 146 [2024-11-07 00:24:01,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:01,012 INFO L471 AbstractCegarLoop]: Abstraction has 33145 states and 48297 transitions. [2024-11-07 00:24:01,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:01,012 INFO L276 IsEmpty]: Start isEmpty. Operand 33145 states and 48297 transitions. [2024-11-07 00:24:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-07 00:24:01,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:01,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:01,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 00:24:01,085 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:01,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1220349594, now seen corresponding path program 1 times [2024-11-07 00:24:01,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:01,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749207929] [2024-11-07 00:24:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:01,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:01,214 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 00:24:01,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:01,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749207929] [2024-11-07 00:24:01,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749207929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:01,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:01,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:01,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619929382] [2024-11-07 00:24:01,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:01,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:01,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:01,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:01,216 INFO L87 Difference]: Start difference. First operand 33145 states and 48297 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:01,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:01,759 INFO L93 Difference]: Finished difference Result 93946 states and 136145 transitions. [2024-11-07 00:24:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:01,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-07 00:24:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:01,939 INFO L225 Difference]: With dead ends: 93946 [2024-11-07 00:24:01,940 INFO L226 Difference]: Without dead ends: 61068 [2024-11-07 00:24:01,984 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 00:24:01,985 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 503 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:01,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1161 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:24:02,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61068 states. [2024-11-07 00:24:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61068 to 61066. [2024-11-07 00:24:03,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61066 states, 61065 states have (on average 1.4328338655530992) internal successors, (87496), 61065 states have internal predecessors, (87496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61066 states to 61066 states and 87496 transitions. [2024-11-07 00:24:03,465 INFO L78 Accepts]: Start accepts. Automaton has 61066 states and 87496 transitions. Word has length 146 [2024-11-07 00:24:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:03,465 INFO L471 AbstractCegarLoop]: Abstraction has 61066 states and 87496 transitions. [2024-11-07 00:24:03,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 61066 states and 87496 transitions. [2024-11-07 00:24:03,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-07 00:24:03,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:03,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:03,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 00:24:03,646 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:03,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1598822765, now seen corresponding path program 1 times [2024-11-07 00:24:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825806782] [2024-11-07 00:24:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:04,090 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 00:24:04,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825806782] [2024-11-07 00:24:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825806782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:04,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:04,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:04,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621461370] [2024-11-07 00:24:04,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:04,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:24:04,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:24:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:04,094 INFO L87 Difference]: Start difference. First operand 61066 states and 87496 transitions. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:04,840 INFO L93 Difference]: Finished difference Result 100179 states and 142155 transitions. [2024-11-07 00:24:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:24:04,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2024-11-07 00:24:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:05,002 INFO L225 Difference]: With dead ends: 100179 [2024-11-07 00:24:05,002 INFO L226 Difference]: Without dead ends: 61272 [2024-11-07 00:24:05,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:05,052 INFO L432 NwaCegarLoop]: 1206 mSDtfsCounter, 2751 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2751 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:05,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2751 Valid, 2392 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 00:24:05,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61272 states. [2024-11-07 00:24:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61272 to 59628. [2024-11-07 00:24:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59628 states, 59627 states have (on average 1.4092273634427357) internal successors, (84028), 59627 states have internal predecessors, (84028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59628 states to 59628 states and 84028 transitions. [2024-11-07 00:24:06,448 INFO L78 Accepts]: Start accepts. Automaton has 59628 states and 84028 transitions. Word has length 147 [2024-11-07 00:24:06,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:06,448 INFO L471 AbstractCegarLoop]: Abstraction has 59628 states and 84028 transitions. [2024-11-07 00:24:06,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:06,448 INFO L276 IsEmpty]: Start isEmpty. Operand 59628 states and 84028 transitions. [2024-11-07 00:24:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-07 00:24:06,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:06,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:06,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 00:24:06,516 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:06,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash -584926344, now seen corresponding path program 1 times [2024-11-07 00:24:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948687995] [2024-11-07 00:24:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:06,783 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 00:24:06,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:06,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948687995] [2024-11-07 00:24:06,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948687995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:06,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:06,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:06,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959697789] [2024-11-07 00:24:06,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:06,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:24:06,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:06,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:24:06,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:06,787 INFO L87 Difference]: Start difference. First operand 59628 states and 84028 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:07,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:07,769 INFO L93 Difference]: Finished difference Result 130711 states and 186578 transitions. [2024-11-07 00:24:07,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:24:07,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2024-11-07 00:24:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:08,073 INFO L225 Difference]: With dead ends: 130711 [2024-11-07 00:24:08,073 INFO L226 Difference]: Without dead ends: 108324 [2024-11-07 00:24:08,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:24:08,121 INFO L432 NwaCegarLoop]: 1072 mSDtfsCounter, 2956 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:08,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 3790 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:24:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108324 states. [2024-11-07 00:24:09,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108324 to 81322. [2024-11-07 00:24:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81322 states, 81321 states have (on average 1.4089841492357447) internal successors, (114580), 81321 states have internal predecessors, (114580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:09,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81322 states to 81322 states and 114580 transitions. [2024-11-07 00:24:09,732 INFO L78 Accepts]: Start accepts. Automaton has 81322 states and 114580 transitions. Word has length 148 [2024-11-07 00:24:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:09,733 INFO L471 AbstractCegarLoop]: Abstraction has 81322 states and 114580 transitions. [2024-11-07 00:24:09,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:09,734 INFO L276 IsEmpty]: Start isEmpty. Operand 81322 states and 114580 transitions. [2024-11-07 00:24:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-07 00:24:10,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:10,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:10,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 00:24:10,196 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:10,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash 81709173, now seen corresponding path program 1 times [2024-11-07 00:24:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:10,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94873620] [2024-11-07 00:24:10,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:10,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:10,369 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 00:24:10,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:10,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94873620] [2024-11-07 00:24:10,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94873620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:10,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:10,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:10,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060793031] [2024-11-07 00:24:10,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:10,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:10,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:10,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:10,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:10,373 INFO L87 Difference]: Start difference. First operand 81322 states and 114580 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:10,853 INFO L93 Difference]: Finished difference Result 108030 states and 151819 transitions. [2024-11-07 00:24:10,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-11-07 00:24:10,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:10,972 INFO L225 Difference]: With dead ends: 108030 [2024-11-07 00:24:10,972 INFO L226 Difference]: Without dead ends: 70504 [2024-11-07 00:24:11,028 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 00:24:11,029 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 486 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:11,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1460 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:11,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70504 states. [2024-11-07 00:24:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70504 to 70422. [2024-11-07 00:24:12,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70422 states, 70421 states have (on average 1.3959046307209497) internal successors, (98301), 70421 states have internal predecessors, (98301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:12,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70422 states to 70422 states and 98301 transitions. [2024-11-07 00:24:12,401 INFO L78 Accepts]: Start accepts. Automaton has 70422 states and 98301 transitions. Word has length 149 [2024-11-07 00:24:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:12,401 INFO L471 AbstractCegarLoop]: Abstraction has 70422 states and 98301 transitions. [2024-11-07 00:24:12,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand 70422 states and 98301 transitions. [2024-11-07 00:24:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-07 00:24:12,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:12,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:12,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 00:24:12,741 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:12,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash 66548393, now seen corresponding path program 1 times [2024-11-07 00:24:12,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:12,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713584347] [2024-11-07 00:24:12,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:12,977 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 00:24:12,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:12,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713584347] [2024-11-07 00:24:12,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713584347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:12,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:12,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:12,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125570164] [2024-11-07 00:24:12,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:12,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:24:12,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:12,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:24:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:12,978 INFO L87 Difference]: Start difference. First operand 70422 states and 98301 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:13,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:13,866 INFO L93 Difference]: Finished difference Result 129277 states and 182532 transitions. [2024-11-07 00:24:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:24:13,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-11-07 00:24:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:14,003 INFO L225 Difference]: With dead ends: 129277 [2024-11-07 00:24:14,004 INFO L226 Difference]: Without dead ends: 109408 [2024-11-07 00:24:14,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:24:14,031 INFO L432 NwaCegarLoop]: 1050 mSDtfsCounter, 2906 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 3383 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:14,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 3383 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:24:14,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109408 states. [2024-11-07 00:24:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109408 to 89429. [2024-11-07 00:24:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89429 states, 89428 states have (on average 1.3961399114371338) internal successors, (124854), 89428 states have internal predecessors, (124854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89429 states to 89429 states and 124854 transitions. [2024-11-07 00:24:15,765 INFO L78 Accepts]: Start accepts. Automaton has 89429 states and 124854 transitions. Word has length 150 [2024-11-07 00:24:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:15,765 INFO L471 AbstractCegarLoop]: Abstraction has 89429 states and 124854 transitions. [2024-11-07 00:24:15,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 89429 states and 124854 transitions. [2024-11-07 00:24:15,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-07 00:24:15,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:15,844 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:15,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 00:24:15,845 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:15,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:15,845 INFO L85 PathProgramCache]: Analyzing trace with hash 603301209, now seen corresponding path program 1 times [2024-11-07 00:24:15,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:15,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850796012] [2024-11-07 00:24:15,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:15,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:16,082 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 00:24:16,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:16,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850796012] [2024-11-07 00:24:16,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850796012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:16,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:16,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:16,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77560779] [2024-11-07 00:24:16,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:16,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:24:16,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:16,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:24:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:16,086 INFO L87 Difference]: Start difference. First operand 89429 states and 124854 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:17,096 INFO L93 Difference]: Finished difference Result 142531 states and 200886 transitions. [2024-11-07 00:24:17,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:24:17,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-11-07 00:24:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:17,302 INFO L225 Difference]: With dead ends: 142531 [2024-11-07 00:24:17,302 INFO L226 Difference]: Without dead ends: 126176 [2024-11-07 00:24:17,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:24:17,355 INFO L432 NwaCegarLoop]: 989 mSDtfsCounter, 3155 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:17,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 3276 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:24:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126176 states. [2024-11-07 00:24:19,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126176 to 104221. [2024-11-07 00:24:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104221 states, 104220 states have (on average 1.3965553636538093) internal successors, (145549), 104220 states have internal predecessors, (145549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:19,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104221 states to 104221 states and 145549 transitions. [2024-11-07 00:24:19,423 INFO L78 Accepts]: Start accepts. Automaton has 104221 states and 145549 transitions. Word has length 150 [2024-11-07 00:24:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:19,424 INFO L471 AbstractCegarLoop]: Abstraction has 104221 states and 145549 transitions. [2024-11-07 00:24:19,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 104221 states and 145549 transitions. [2024-11-07 00:24:19,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:24:19,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:19,511 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:19,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 00:24:19,511 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:19,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:19,512 INFO L85 PathProgramCache]: Analyzing trace with hash -469643206, now seen corresponding path program 1 times [2024-11-07 00:24:19,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:19,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028502476] [2024-11-07 00:24:19,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:19,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:19,613 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 00:24:19,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:19,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028502476] [2024-11-07 00:24:19,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028502476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:19,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:19,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:19,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455191244] [2024-11-07 00:24:19,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:19,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:19,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:19,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:19,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:19,616 INFO L87 Difference]: Start difference. First operand 104221 states and 145549 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:20,420 INFO L93 Difference]: Finished difference Result 138154 states and 192447 transitions. [2024-11-07 00:24:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:20,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-11-07 00:24:20,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:20,564 INFO L225 Difference]: With dead ends: 138154 [2024-11-07 00:24:20,564 INFO L226 Difference]: Without dead ends: 95865 [2024-11-07 00:24:20,603 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 00:24:20,604 INFO L432 NwaCegarLoop]: 1011 mSDtfsCounter, 442 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:20,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1558 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:20,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95865 states. [2024-11-07 00:24:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95865 to 95818. [2024-11-07 00:24:21,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95818 states, 95817 states have (on average 1.3831261675903024) internal successors, (132527), 95817 states have internal predecessors, (132527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95818 states to 95818 states and 132527 transitions. [2024-11-07 00:24:21,927 INFO L78 Accepts]: Start accepts. Automaton has 95818 states and 132527 transitions. Word has length 151 [2024-11-07 00:24:21,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:21,927 INFO L471 AbstractCegarLoop]: Abstraction has 95818 states and 132527 transitions. [2024-11-07 00:24:21,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 95818 states and 132527 transitions. [2024-11-07 00:24:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 00:24:22,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:22,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:22,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:24:22,392 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:22,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:22,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2010807688, now seen corresponding path program 1 times [2024-11-07 00:24:22,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621001070] [2024-11-07 00:24:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:22,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:22,515 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 00:24:22,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:22,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621001070] [2024-11-07 00:24:22,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621001070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:22,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:22,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:22,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896154740] [2024-11-07 00:24:22,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:22,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:22,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:22,517 INFO L87 Difference]: Start difference. First operand 95818 states and 132527 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:23,035 INFO L93 Difference]: Finished difference Result 116827 states and 161375 transitions. [2024-11-07 00:24:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:23,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-11-07 00:24:23,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:23,187 INFO L225 Difference]: With dead ends: 116827 [2024-11-07 00:24:23,188 INFO L226 Difference]: Without dead ends: 91039 [2024-11-07 00:24:23,246 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 00:24:23,248 INFO L432 NwaCegarLoop]: 1014 mSDtfsCounter, 399 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:23,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1561 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91039 states. [2024-11-07 00:24:24,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91039 to 91037. [2024-11-07 00:24:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91037 states, 91036 states have (on average 1.3728524979129135) internal successors, (124979), 91036 states have internal predecessors, (124979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91037 states to 91037 states and 124979 transitions. [2024-11-07 00:24:25,216 INFO L78 Accepts]: Start accepts. Automaton has 91037 states and 124979 transitions. Word has length 151 [2024-11-07 00:24:25,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:25,216 INFO L471 AbstractCegarLoop]: Abstraction has 91037 states and 124979 transitions. [2024-11-07 00:24:25,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 91037 states and 124979 transitions. [2024-11-07 00:24:25,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-07 00:24:25,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:25,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:25,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 00:24:25,284 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:25,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:25,284 INFO L85 PathProgramCache]: Analyzing trace with hash 571889516, now seen corresponding path program 1 times [2024-11-07 00:24:25,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:25,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638199785] [2024-11-07 00:24:25,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:25,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:24:25,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638199785] [2024-11-07 00:24:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638199785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:25,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:25,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:25,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806672140] [2024-11-07 00:24:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:25,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:24:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:24:25,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:25,471 INFO L87 Difference]: Start difference. First operand 91037 states and 124979 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:26,004 INFO L93 Difference]: Finished difference Result 122036 states and 168423 transitions. [2024-11-07 00:24:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:24:26,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-11-07 00:24:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:26,178 INFO L225 Difference]: With dead ends: 122036 [2024-11-07 00:24:26,178 INFO L226 Difference]: Without dead ends: 110338 [2024-11-07 00:24:26,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:24:26,234 INFO L432 NwaCegarLoop]: 938 mSDtfsCounter, 2894 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:26,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2894 Valid, 3701 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:24:26,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110338 states. [2024-11-07 00:24:27,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110338 to 101516. [2024-11-07 00:24:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101516 states, 101515 states have (on average 1.3717578682953258) internal successors, (139254), 101515 states have internal predecessors, (139254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101516 states to 101516 states and 139254 transitions. [2024-11-07 00:24:28,033 INFO L78 Accepts]: Start accepts. Automaton has 101516 states and 139254 transitions. Word has length 152 [2024-11-07 00:24:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:28,033 INFO L471 AbstractCegarLoop]: Abstraction has 101516 states and 139254 transitions. [2024-11-07 00:24:28,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 101516 states and 139254 transitions. [2024-11-07 00:24:28,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 00:24:28,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:28,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:28,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 00:24:28,143 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:28,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 109223062, now seen corresponding path program 1 times [2024-11-07 00:24:28,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:28,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523913668] [2024-11-07 00:24:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:28,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:24:28,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:28,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523913668] [2024-11-07 00:24:28,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523913668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:28,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:28,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 00:24:28,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360774950] [2024-11-07 00:24:28,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:28,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:24:28,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:24:28,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:24:28,326 INFO L87 Difference]: Start difference. First operand 101516 states and 139254 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:30,236 INFO L93 Difference]: Finished difference Result 288461 states and 395411 transitions. [2024-11-07 00:24:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:24:30,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-07 00:24:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:30,455 INFO L225 Difference]: With dead ends: 288461 [2024-11-07 00:24:30,456 INFO L226 Difference]: Without dead ends: 186981 [2024-11-07 00:24:30,507 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 00:24:30,508 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 2691 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:30,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 625 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 00:24:30,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186981 states. [2024-11-07 00:24:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186981 to 186611. [2024-11-07 00:24:33,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186611 states, 186610 states have (on average 1.3641176785809979) internal successors, (254558), 186610 states have internal predecessors, (254558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186611 states to 186611 states and 254558 transitions. [2024-11-07 00:24:33,926 INFO L78 Accepts]: Start accepts. Automaton has 186611 states and 254558 transitions. Word has length 153 [2024-11-07 00:24:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:33,927 INFO L471 AbstractCegarLoop]: Abstraction has 186611 states and 254558 transitions. [2024-11-07 00:24:33,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 186611 states and 254558 transitions. [2024-11-07 00:24:34,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 00:24:34,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:34,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:34,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 00:24:34,165 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:34,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:34,165 INFO L85 PathProgramCache]: Analyzing trace with hash -520547685, now seen corresponding path program 1 times [2024-11-07 00:24:34,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:34,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960408971] [2024-11-07 00:24:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:34,346 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 00:24:34,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:34,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960408971] [2024-11-07 00:24:34,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960408971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:34,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:34,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:34,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811784720] [2024-11-07 00:24:34,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:34,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:34,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:34,348 INFO L87 Difference]: Start difference. First operand 186611 states and 254558 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:35,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:35,614 INFO L93 Difference]: Finished difference Result 295843 states and 405036 transitions. [2024-11-07 00:24:35,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:24:35,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-07 00:24:35,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:35,787 INFO L225 Difference]: With dead ends: 295843 [2024-11-07 00:24:35,787 INFO L226 Difference]: Without dead ends: 128872 [2024-11-07 00:24:35,888 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 00:24:35,889 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 277 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:35,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 947 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128872 states. [2024-11-07 00:24:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128872 to 128870. [2024-11-07 00:24:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128870 states, 128869 states have (on average 1.3575646586844003) internal successors, (174948), 128869 states have internal predecessors, (174948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:38,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128870 states to 128870 states and 174948 transitions. [2024-11-07 00:24:38,309 INFO L78 Accepts]: Start accepts. Automaton has 128870 states and 174948 transitions. Word has length 153 [2024-11-07 00:24:38,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:38,309 INFO L471 AbstractCegarLoop]: Abstraction has 128870 states and 174948 transitions. [2024-11-07 00:24:38,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:38,310 INFO L276 IsEmpty]: Start isEmpty. Operand 128870 states and 174948 transitions. [2024-11-07 00:24:38,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 00:24:38,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:38,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:38,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 00:24:38,389 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:38,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash -434514705, now seen corresponding path program 1 times [2024-11-07 00:24:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:38,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883013464] [2024-11-07 00:24:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:38,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:39,086 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 00:24:39,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:39,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883013464] [2024-11-07 00:24:39,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883013464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:39,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:39,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:24:39,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675808330] [2024-11-07 00:24:39,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:39,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:24:39,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:39,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:24:39,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:39,088 INFO L87 Difference]: Start difference. First operand 128870 states and 174948 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:39,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:24:39,603 INFO L93 Difference]: Finished difference Result 132584 states and 180517 transitions. [2024-11-07 00:24:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:24:39,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-07 00:24:39,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:24:39,785 INFO L225 Difference]: With dead ends: 132584 [2024-11-07 00:24:39,785 INFO L226 Difference]: Without dead ends: 132582 [2024-11-07 00:24:39,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:24:39,838 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 0 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:24:39,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2780 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:24:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132582 states. [2024-11-07 00:24:42,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132582 to 132582. [2024-11-07 00:24:42,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132582 states, 132581 states have (on average 1.3475535710245057) internal successors, (178660), 132581 states have internal predecessors, (178660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132582 states to 132582 states and 178660 transitions. [2024-11-07 00:24:42,329 INFO L78 Accepts]: Start accepts. Automaton has 132582 states and 178660 transitions. Word has length 153 [2024-11-07 00:24:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:24:42,330 INFO L471 AbstractCegarLoop]: Abstraction has 132582 states and 178660 transitions. [2024-11-07 00:24:42,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:24:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 132582 states and 178660 transitions. [2024-11-07 00:24:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-07 00:24:42,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:24:42,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:24:42,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:24:42,411 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:24:42,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:24:42,411 INFO L85 PathProgramCache]: Analyzing trace with hash -574480596, now seen corresponding path program 1 times [2024-11-07 00:24:42,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:24:42,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854494869] [2024-11-07 00:24:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:24:42,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:24:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:24:42,504 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 00:24:42,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:24:42,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854494869] [2024-11-07 00:24:42,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854494869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:24:42,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:24:42,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:24:42,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849027645] [2024-11-07 00:24:42,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:24:42,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:24:42,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:24:42,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:24:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:24:42,507 INFO L87 Difference]: Start difference. First operand 132582 states and 178660 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)