./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.01.cil-1.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/combinations/Problem05_label43+token_ring.01.cil-1.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', '565fd413301c45f63fa2cdba47d97202665de3c20676178781aed7350181380f'] 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/combinations/Problem05_label43+token_ring.01.cil-1.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 565fd413301c45f63fa2cdba47d97202665de3c20676178781aed7350181380f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 00:58:50,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 00:58:50,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 00:58:50,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 00:58:50,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 00:58:50,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 00:58:50,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 00:58:50,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 00:58:50,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 00:58:50,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 00:58:50,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 00:58:50,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 00:58:50,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 00:58:50,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 00:58:50,802 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 00:58:50,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 00:58:50,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 00:58:50,802 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 00:58:50,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 00:58:50,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 00:58:50,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 00:58:50,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 00:58:50,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 00:58:50,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 00:58:50,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 00:58:50,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 00:58:50,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 00:58:50,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 00:58:50,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 00:58:50,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 00:58:50,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 00:58:50,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 00:58:50,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:58:50,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 00:58:50,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 00:58:50,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 00:58:50,807 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 -> 565fd413301c45f63fa2cdba47d97202665de3c20676178781aed7350181380f [2024-11-07 00:58:51,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 00:58:51,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 00:58:51,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 00:58:51,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 00:58:51,097 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 00:58:51,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.01.cil-1.c [2024-11-07 00:58:52,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 00:58:52,954 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 00:58:52,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.01.cil-1.c [2024-11-07 00:58:53,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/695a81271/09e85be8c6564acea48ab5e300ad20eb/FLAGa697be938 [2024-11-07 00:58:53,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/695a81271/09e85be8c6564acea48ab5e300ad20eb [2024-11-07 00:58:53,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 00:58:53,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 00:58:53,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 00:58:53,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 00:58:53,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 00:58:53,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:53" (1/1) ... [2024-11-07 00:58:53,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4456bd50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:53, skipping insertion in model container [2024-11-07 00:58:53,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:53" (1/1) ... [2024-11-07 00:58:53,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 00:58:54,826 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/combinations/Problem05_label43+token_ring.01.cil-1.c[381679,381692] [2024-11-07 00:58:54,849 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/combinations/Problem05_label43+token_ring.01.cil-1.c[383339,383352] [2024-11-07 00:58:54,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:58:54,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 00:58:55,602 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/combinations/Problem05_label43+token_ring.01.cil-1.c[381679,381692] [2024-11-07 00:58:55,606 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/combinations/Problem05_label43+token_ring.01.cil-1.c[383339,383352] [2024-11-07 00:58:55,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 00:58:55,673 INFO L204 MainTranslator]: Completed translation [2024-11-07 00:58:55,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55 WrapperNode [2024-11-07 00:58:55,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 00:58:55,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 00:58:55,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 00:58:55,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 00:58:55,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:55,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,228 INFO L138 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12573 [2024-11-07 00:58:56,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 00:58:56,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 00:58:56,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 00:58:56,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 00:58:56,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,436 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 00:58:56,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:56,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:57,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 00:58:57,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 00:58:57,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 00:58:57,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 00:58:57,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (1/1) ... [2024-11-07 00:58:57,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 00:58:57,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:58:57,038 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 00:58:57,044 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 00:58:57,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 00:58:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 00:58:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 00:58:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 00:58:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 00:58:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 00:58:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 00:58:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 00:58:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 00:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 00:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 00:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 00:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 00:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 00:58:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 00:58:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 00:58:57,183 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 00:58:57,186 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 00:59:04,958 INFO L? ?]: Removed 1689 outVars from TransFormulas that were not future-live. [2024-11-07 00:59:04,959 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 00:59:05,028 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 00:59:05,030 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-07 00:59:05,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:05 BoogieIcfgContainer [2024-11-07 00:59:05,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 00:59:05,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 00:59:05,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 00:59:05,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 00:59:05,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:53" (1/3) ... [2024-11-07 00:59:05,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15317358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:05, skipping insertion in model container [2024-11-07 00:59:05,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:55" (2/3) ... [2024-11-07 00:59:05,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15317358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:05, skipping insertion in model container [2024-11-07 00:59:05,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:05" (3/3) ... [2024-11-07 00:59:05,041 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.01.cil-1.c [2024-11-07 00:59:05,055 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 00:59:05,056 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 00:59:05,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 00:59:05,192 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;@a05bd3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 00:59:05,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 00:59:05,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 2292 states, 2268 states have (on average 1.8580246913580247) internal successors, (4214), 2271 states have internal predecessors, (4214), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 00:59:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:59:05,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:05,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:05,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:05,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash -933589418, now seen corresponding path program 1 times [2024-11-07 00:59:05,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:05,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560561742] [2024-11-07 00:59:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:05,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:05,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:05,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:05,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:05,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:05,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:05,695 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 00:59:05,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:05,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560561742] [2024-11-07 00:59:05,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560561742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:05,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:05,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:59:05,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978088570] [2024-11-07 00:59:05,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:05,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:59:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:05,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:59:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:59:05,732 INFO L87 Difference]: Start difference. First operand has 2292 states, 2268 states have (on average 1.8580246913580247) internal successors, (4214), 2271 states have internal predecessors, (4214), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:06,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:06,506 INFO L93 Difference]: Finished difference Result 4711 states and 8684 transitions. [2024-11-07 00:59:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:59:06,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-07 00:59:06,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:06,538 INFO L225 Difference]: With dead ends: 4711 [2024-11-07 00:59:06,538 INFO L226 Difference]: Without dead ends: 2358 [2024-11-07 00:59:06,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:59:06,629 INFO L432 NwaCegarLoop]: 4124 mSDtfsCounter, 4323 mSDsluCounter, 12350 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4331 SdHoareTripleChecker+Valid, 16474 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:06,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4331 Valid, 16474 Invalid, 482 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:59:06,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2024-11-07 00:59:06,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2317. [2024-11-07 00:59:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2277 states have (on average 1.8361879666227492) internal successors, (4181), 2280 states have internal predecessors, (4181), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2024-11-07 00:59:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 4234 transitions. [2024-11-07 00:59:06,805 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 4234 transitions. Word has length 57 [2024-11-07 00:59:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:06,806 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 4234 transitions. [2024-11-07 00:59:06,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 4234 transitions. [2024-11-07 00:59:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:59:06,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:06,809 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] [2024-11-07 00:59:06,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 00:59:06,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:06,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:06,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1845541414, now seen corresponding path program 1 times [2024-11-07 00:59:06,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:06,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377977170] [2024-11-07 00:59:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:06,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:06,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:06,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:07,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:07,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:07,052 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 00:59:07,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:07,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377977170] [2024-11-07 00:59:07,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377977170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:07,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:07,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:59:07,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64196768] [2024-11-07 00:59:07,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:07,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:59:07,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:59:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:59:07,055 INFO L87 Difference]: Start difference. First operand 2317 states and 4234 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:07,853 INFO L93 Difference]: Finished difference Result 2655 states and 4714 transitions. [2024-11-07 00:59:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 00:59:07,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-07 00:59:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:07,872 INFO L225 Difference]: With dead ends: 2655 [2024-11-07 00:59:07,873 INFO L226 Difference]: Without dead ends: 2468 [2024-11-07 00:59:07,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 00:59:07,877 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4245 mSDsluCounter, 16317 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4253 SdHoareTripleChecker+Valid, 20435 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:07,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4253 Valid, 20435 Invalid, 737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:59:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-07 00:59:07,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2404. [2024-11-07 00:59:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 2347 states have (on average 1.8227524499360885) internal successors, (4278), 2351 states have internal predecessors, (4278), 35 states have call successors, (35), 18 states have call predecessors, (35), 20 states have return successors, (40), 36 states have call predecessors, (40), 35 states have call successors, (40) [2024-11-07 00:59:07,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 4353 transitions. [2024-11-07 00:59:07,965 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 4353 transitions. Word has length 57 [2024-11-07 00:59:07,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:07,966 INFO L471 AbstractCegarLoop]: Abstraction has 2404 states and 4353 transitions. [2024-11-07 00:59:07,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 4353 transitions. [2024-11-07 00:59:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:59:07,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:07,971 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] [2024-11-07 00:59:07,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 00:59:07,971 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:07,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash 400038040, now seen corresponding path program 1 times [2024-11-07 00:59:07,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:07,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479720384] [2024-11-07 00:59:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:07,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:08,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:08,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:08,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:08,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:08,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:08,139 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 00:59:08,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:08,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479720384] [2024-11-07 00:59:08,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479720384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:08,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:08,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:59:08,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246648837] [2024-11-07 00:59:08,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:08,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:59:08,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:08,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:59:08,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:59:08,142 INFO L87 Difference]: Start difference. First operand 2404 states and 4353 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:08,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:08,887 INFO L93 Difference]: Finished difference Result 2997 states and 5187 transitions. [2024-11-07 00:59:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:59:08,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-07 00:59:08,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:08,902 INFO L225 Difference]: With dead ends: 2997 [2024-11-07 00:59:08,903 INFO L226 Difference]: Without dead ends: 2723 [2024-11-07 00:59:08,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:59:08,906 INFO L432 NwaCegarLoop]: 4114 mSDtfsCounter, 4300 mSDsluCounter, 16309 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4310 SdHoareTripleChecker+Valid, 20423 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:08,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4310 Valid, 20423 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:59:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-07 00:59:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2573. [2024-11-07 00:59:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2484 states have (on average 1.7991143317230274) internal successors, (4469), 2490 states have internal predecessors, (4469), 53 states have call successors, (53), 30 states have call predecessors, (53), 34 states have return successors, (66), 56 states have call predecessors, (66), 53 states have call successors, (66) [2024-11-07 00:59:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4588 transitions. [2024-11-07 00:59:09,003 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4588 transitions. Word has length 57 [2024-11-07 00:59:09,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:09,004 INFO L471 AbstractCegarLoop]: Abstraction has 2573 states and 4588 transitions. [2024-11-07 00:59:09,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4588 transitions. [2024-11-07 00:59:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:59:09,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:09,007 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] [2024-11-07 00:59:09,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 00:59:09,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:09,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:09,007 INFO L85 PathProgramCache]: Analyzing trace with hash -497355238, now seen corresponding path program 1 times [2024-11-07 00:59:09,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:09,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596514707] [2024-11-07 00:59:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:09,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:09,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:09,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:09,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:09,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:09,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:09,226 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 00:59:09,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596514707] [2024-11-07 00:59:09,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596514707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:09,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:09,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 00:59:09,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175963014] [2024-11-07 00:59:09,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:09,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 00:59:09,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:09,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 00:59:09,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:59:09,229 INFO L87 Difference]: Start difference. First operand 2573 states and 4588 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:10,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:10,009 INFO L93 Difference]: Finished difference Result 3531 states and 5930 transitions. [2024-11-07 00:59:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 00:59:10,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-07 00:59:10,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:10,025 INFO L225 Difference]: With dead ends: 3531 [2024-11-07 00:59:10,025 INFO L226 Difference]: Without dead ends: 3088 [2024-11-07 00:59:10,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 00:59:10,028 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4240 mSDsluCounter, 16291 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 20393 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:10,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 20393 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 00:59:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2024-11-07 00:59:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2880. [2024-11-07 00:59:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2733 states have (on average 1.761068422978412) internal successors, (4813), 2743 states have internal predecessors, (4813), 85 states have call successors, (85), 52 states have call predecessors, (85), 60 states have return successors, (120), 92 states have call predecessors, (120), 85 states have call successors, (120) [2024-11-07 00:59:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 5018 transitions. [2024-11-07 00:59:10,130 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 5018 transitions. Word has length 57 [2024-11-07 00:59:10,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:10,130 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 5018 transitions. [2024-11-07 00:59:10,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 5018 transitions. [2024-11-07 00:59:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 00:59:10,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:10,133 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] [2024-11-07 00:59:10,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 00:59:10,133 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:10,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:10,133 INFO L85 PathProgramCache]: Analyzing trace with hash -249208744, now seen corresponding path program 1 times [2024-11-07 00:59:10,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:10,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108052806] [2024-11-07 00:59:10,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:10,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:10,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:10,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:10,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:10,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:10,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:10,231 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 00:59:10,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108052806] [2024-11-07 00:59:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108052806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:10,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 00:59:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573016657] [2024-11-07 00:59:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:10,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:59:10,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:59:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 00:59:10,234 INFO L87 Difference]: Start difference. First operand 2880 states and 5018 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:10,866 INFO L93 Difference]: Finished difference Result 4245 states and 6940 transitions. [2024-11-07 00:59:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 00:59:10,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-07 00:59:10,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:10,883 INFO L225 Difference]: With dead ends: 4245 [2024-11-07 00:59:10,883 INFO L226 Difference]: Without dead ends: 3496 [2024-11-07 00:59:10,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:59:10,888 INFO L432 NwaCegarLoop]: 4134 mSDtfsCounter, 4360 mSDsluCounter, 12168 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 16302 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:10,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 16302 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 00:59:10,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2024-11-07 00:59:11,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3291. [2024-11-07 00:59:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 3061 states have (on average 1.714799085266253) internal successors, (5249), 3080 states have internal predecessors, (5249), 134 states have call successors, (134), 82 states have call predecessors, (134), 94 states have return successors, (179), 136 states have call predecessors, (179), 134 states have call successors, (179) [2024-11-07 00:59:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 5562 transitions. [2024-11-07 00:59:11,097 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 5562 transitions. Word has length 57 [2024-11-07 00:59:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:11,097 INFO L471 AbstractCegarLoop]: Abstraction has 3291 states and 5562 transitions. [2024-11-07 00:59:11,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 00:59:11,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 5562 transitions. [2024-11-07 00:59:11,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 00:59:11,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:11,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:11,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 00:59:11,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:11,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:11,111 INFO L85 PathProgramCache]: Analyzing trace with hash -511188062, now seen corresponding path program 1 times [2024-11-07 00:59:11,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:11,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650507703] [2024-11-07 00:59:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:11,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 00:59:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 00:59:11,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650507703] [2024-11-07 00:59:11,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650507703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958535635] [2024-11-07 00:59:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:11,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:11,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:11,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 00:59:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:11,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:59:11,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 00:59:11,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:11,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958535635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:11,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:11,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:11,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103119206] [2024-11-07 00:59:11,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:11,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:11,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:11,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:11,659 INFO L87 Difference]: Start difference. First operand 3291 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:59:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:11,798 INFO L93 Difference]: Finished difference Result 5517 states and 8683 transitions. [2024-11-07 00:59:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:11,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 93 [2024-11-07 00:59:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:11,822 INFO L225 Difference]: With dead ends: 5517 [2024-11-07 00:59:11,822 INFO L226 Difference]: Without dead ends: 4358 [2024-11-07 00:59:11,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:11,829 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 115 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8319 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:11,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8319 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:11,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2024-11-07 00:59:11,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4358. [2024-11-07 00:59:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4358 states, 3919 states have (on average 1.6340903291656035) internal successors, (6404), 3951 states have internal predecessors, (6404), 253 states have call successors, (253), 160 states have call predecessors, (253), 184 states have return successors, (376), 262 states have call predecessors, (376), 253 states have call successors, (376) [2024-11-07 00:59:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 7033 transitions. [2024-11-07 00:59:12,021 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 7033 transitions. Word has length 93 [2024-11-07 00:59:12,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:12,022 INFO L471 AbstractCegarLoop]: Abstraction has 4358 states and 7033 transitions. [2024-11-07 00:59:12,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:59:12,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 7033 transitions. [2024-11-07 00:59:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 00:59:12,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:12,033 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:12,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 00:59:12,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:12,239 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:12,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:12,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1537753171, now seen corresponding path program 1 times [2024-11-07 00:59:12,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:12,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214203938] [2024-11-07 00:59:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:12,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 00:59:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 00:59:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-07 00:59:12,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:12,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214203938] [2024-11-07 00:59:12,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214203938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:12,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658176013] [2024-11-07 00:59:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:12,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:12,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:12,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:12,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 00:59:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:12,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:59:12,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 00:59:12,634 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:12,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658176013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:12,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:12,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-07 00:59:12,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161454058] [2024-11-07 00:59:12,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:12,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:12,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:12,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:12,638 INFO L87 Difference]: Start difference. First operand 4358 states and 7033 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-07 00:59:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:12,883 INFO L93 Difference]: Finished difference Result 8668 states and 12996 transitions. [2024-11-07 00:59:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:12,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 120 [2024-11-07 00:59:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:12,922 INFO L225 Difference]: With dead ends: 8668 [2024-11-07 00:59:12,922 INFO L226 Difference]: Without dead ends: 6445 [2024-11-07 00:59:12,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:12,934 INFO L432 NwaCegarLoop]: 4106 mSDtfsCounter, 4027 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 4228 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:12,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 4228 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:12,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2024-11-07 00:59:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 6387. [2024-11-07 00:59:13,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6387 states, 5554 states have (on average 1.5482535109830753) internal successors, (8599), 5615 states have internal predecessors, (8599), 473 states have call successors, (473), 310 states have call predecessors, (473), 358 states have return successors, (688), 477 states have call predecessors, (688), 473 states have call successors, (688) [2024-11-07 00:59:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6387 states to 6387 states and 9760 transitions. [2024-11-07 00:59:13,275 INFO L78 Accepts]: Start accepts. Automaton has 6387 states and 9760 transitions. Word has length 120 [2024-11-07 00:59:13,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:13,276 INFO L471 AbstractCegarLoop]: Abstraction has 6387 states and 9760 transitions. [2024-11-07 00:59:13,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-07 00:59:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6387 states and 9760 transitions. [2024-11-07 00:59:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 00:59:13,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:13,288 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:13,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 00:59:13,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:13,493 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:13,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:13,493 INFO L85 PathProgramCache]: Analyzing trace with hash -782048242, now seen corresponding path program 1 times [2024-11-07 00:59:13,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100565577] [2024-11-07 00:59:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:13,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 00:59:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 00:59:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 00:59:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 00:59:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,631 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-07 00:59:13,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:13,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100565577] [2024-11-07 00:59:13,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100565577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:13,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592097245] [2024-11-07 00:59:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:13,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:13,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:13,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:13,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 00:59:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:13,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:59:13,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-07 00:59:13,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:13,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592097245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:13,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:13,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:13,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120704987] [2024-11-07 00:59:13,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:13,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:13,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:13,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:13,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:13,794 INFO L87 Difference]: Start difference. First operand 6387 states and 9760 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:59:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:14,007 INFO L93 Difference]: Finished difference Result 9685 states and 14265 transitions. [2024-11-07 00:59:14,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:14,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 137 [2024-11-07 00:59:14,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:14,036 INFO L225 Difference]: With dead ends: 9685 [2024-11-07 00:59:14,036 INFO L226 Difference]: Without dead ends: 6715 [2024-11-07 00:59:14,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:14,047 INFO L432 NwaCegarLoop]: 4125 mSDtfsCounter, 4059 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4059 SdHoareTripleChecker+Valid, 4255 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:14,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4059 Valid, 4255 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:14,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2024-11-07 00:59:14,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6677. [2024-11-07 00:59:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 5812 states have (on average 1.5232278045423262) internal successors, (8853), 5873 states have internal predecessors, (8853), 479 states have call successors, (479), 336 states have call predecessors, (479), 384 states have return successors, (720), 483 states have call predecessors, (720), 479 states have call successors, (720) [2024-11-07 00:59:14,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 10052 transitions. [2024-11-07 00:59:14,558 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 10052 transitions. Word has length 137 [2024-11-07 00:59:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:14,582 INFO L471 AbstractCegarLoop]: Abstraction has 6677 states and 10052 transitions. [2024-11-07 00:59:14,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:59:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 10052 transitions. [2024-11-07 00:59:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-07 00:59:14,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:14,611 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:14,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 00:59:14,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:14,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:14,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:14,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1599308267, now seen corresponding path program 1 times [2024-11-07 00:59:14,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:14,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847661385] [2024-11-07 00:59:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 00:59:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 00:59:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 00:59:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-07 00:59:14,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:14,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847661385] [2024-11-07 00:59:14,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847661385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:14,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447067707] [2024-11-07 00:59:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:14,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:14,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:14,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:14,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 00:59:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:15,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:59:15,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-07 00:59:15,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:15,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447067707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:15,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:15,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60600150] [2024-11-07 00:59:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:15,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:15,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:15,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:15,073 INFO L87 Difference]: Start difference. First operand 6677 states and 10052 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:59:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:15,456 INFO L93 Difference]: Finished difference Result 15401 states and 21894 transitions. [2024-11-07 00:59:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:15,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2024-11-07 00:59:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:15,502 INFO L225 Difference]: With dead ends: 15401 [2024-11-07 00:59:15,502 INFO L226 Difference]: Without dead ends: 10861 [2024-11-07 00:59:15,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:15,517 INFO L432 NwaCegarLoop]: 4217 mSDtfsCounter, 115 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 8314 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:15,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 8314 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:15,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-07 00:59:16,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10847. [2024-11-07 00:59:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10847 states, 9168 states have (on average 1.43815445026178) internal successors, (13185), 9289 states have internal predecessors, (13185), 925 states have call successors, (925), 656 states have call predecessors, (925), 752 states have return successors, (1550), 933 states have call predecessors, (1550), 925 states have call successors, (1550) [2024-11-07 00:59:16,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10847 states to 10847 states and 15660 transitions. [2024-11-07 00:59:16,046 INFO L78 Accepts]: Start accepts. Automaton has 10847 states and 15660 transitions. Word has length 138 [2024-11-07 00:59:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:16,047 INFO L471 AbstractCegarLoop]: Abstraction has 10847 states and 15660 transitions. [2024-11-07 00:59:16,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:59:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 10847 states and 15660 transitions. [2024-11-07 00:59:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 00:59:16,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:16,066 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:16,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 00:59:16,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 00:59:16,267 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:16,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash 657886781, now seen corresponding path program 1 times [2024-11-07 00:59:16,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:16,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836590996] [2024-11-07 00:59:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:59:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:59:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:59:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 00:59:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:59:16,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:16,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836590996] [2024-11-07 00:59:16,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836590996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:16,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316121060] [2024-11-07 00:59:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:16,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:16,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:16,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:16,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 00:59:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:16,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:59:16,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:16,517 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 00:59:16,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:16,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316121060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:16,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:16,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:16,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26026045] [2024-11-07 00:59:16,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:16,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:16,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:16,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:16,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:16,518 INFO L87 Difference]: Start difference. First operand 10847 states and 15660 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:59:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:17,227 INFO L93 Difference]: Finished difference Result 15375 states and 22056 transitions. [2024-11-07 00:59:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:17,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-07 00:59:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:17,332 INFO L225 Difference]: With dead ends: 15375 [2024-11-07 00:59:17,335 INFO L226 Difference]: Without dead ends: 10881 [2024-11-07 00:59:17,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:17,373 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 100 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 8273 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:17,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 8273 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10881 states. [2024-11-07 00:59:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10881 to 10823. [2024-11-07 00:59:17,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10823 states, 9144 states have (on average 1.4248687664041995) internal successors, (13029), 9265 states have internal predecessors, (13029), 925 states have call successors, (925), 656 states have call predecessors, (925), 752 states have return successors, (1550), 933 states have call predecessors, (1550), 925 states have call successors, (1550) [2024-11-07 00:59:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10823 states to 10823 states and 15504 transitions. [2024-11-07 00:59:17,962 INFO L78 Accepts]: Start accepts. Automaton has 10823 states and 15504 transitions. Word has length 139 [2024-11-07 00:59:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:17,962 INFO L471 AbstractCegarLoop]: Abstraction has 10823 states and 15504 transitions. [2024-11-07 00:59:17,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-07 00:59:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 10823 states and 15504 transitions. [2024-11-07 00:59:17,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 00:59:17,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:17,985 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:18,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 00:59:18,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 00:59:18,190 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:18,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:18,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1557277189, now seen corresponding path program 1 times [2024-11-07 00:59:18,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:18,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202956592] [2024-11-07 00:59:18,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:18,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:59:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:59:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:59:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 00:59:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:59:18,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:18,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202956592] [2024-11-07 00:59:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202956592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:18,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270367384] [2024-11-07 00:59:18,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:18,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:18,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:18,316 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:18,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 00:59:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:18,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 00:59:18,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:18,449 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 00:59:18,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:18,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270367384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:18,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:18,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335174043] [2024-11-07 00:59:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:18,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:18,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:18,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:18,450 INFO L87 Difference]: Start difference. First operand 10823 states and 15504 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 00:59:19,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:19,004 INFO L93 Difference]: Finished difference Result 17233 states and 24276 transitions. [2024-11-07 00:59:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:19,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 139 [2024-11-07 00:59:19,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:19,075 INFO L225 Difference]: With dead ends: 17233 [2024-11-07 00:59:19,076 INFO L226 Difference]: Without dead ends: 9603 [2024-11-07 00:59:19,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:19,095 INFO L432 NwaCegarLoop]: 4102 mSDtfsCounter, 4078 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:19,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:19,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2024-11-07 00:59:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 9155. [2024-11-07 00:59:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9155 states, 7802 states have (on average 1.4097667264803897) internal successors, (10999), 7891 states have internal predecessors, (10999), 753 states have call successors, (753), 534 states have call predecessors, (753), 598 states have return successors, (1098), 745 states have call predecessors, (1098), 753 states have call successors, (1098) [2024-11-07 00:59:19,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9155 states to 9155 states and 12850 transitions. [2024-11-07 00:59:19,891 INFO L78 Accepts]: Start accepts. Automaton has 9155 states and 12850 transitions. Word has length 139 [2024-11-07 00:59:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:19,892 INFO L471 AbstractCegarLoop]: Abstraction has 9155 states and 12850 transitions. [2024-11-07 00:59:19,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 00:59:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 9155 states and 12850 transitions. [2024-11-07 00:59:19,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:59:19,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:19,907 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:19,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 00:59:20,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 00:59:20,108 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:20,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash -594645104, now seen corresponding path program 1 times [2024-11-07 00:59:20,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:20,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136095265] [2024-11-07 00:59:20,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:20,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:59:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:59:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:59:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 00:59:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:59:20,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136095265] [2024-11-07 00:59:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136095265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873246740] [2024-11-07 00:59:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:20,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:20,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:20,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:20,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 00:59:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:20,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 00:59:20,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-07 00:59:20,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:20,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873246740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:20,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:20,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-07 00:59:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530032948] [2024-11-07 00:59:20,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:20,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:59:20,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:20,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:59:20,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:59:20,500 INFO L87 Difference]: Start difference. First operand 9155 states and 12850 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:59:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:20,903 INFO L93 Difference]: Finished difference Result 11893 states and 16439 transitions. [2024-11-07 00:59:20,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:59:20,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-07 00:59:20,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:20,933 INFO L225 Difference]: With dead ends: 11893 [2024-11-07 00:59:20,933 INFO L226 Difference]: Without dead ends: 7339 [2024-11-07 00:59:20,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:59:20,946 INFO L432 NwaCegarLoop]: 4049 mSDtfsCounter, 4096 mSDsluCounter, 8057 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 12106 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:20,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 12106 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:59:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7339 states. [2024-11-07 00:59:21,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7339 to 7315. [2024-11-07 00:59:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 6320 states have (on average 1.428006329113924) internal successors, (9025), 6373 states have internal predecessors, (9025), 565 states have call successors, (565), 396 states have call predecessors, (565), 428 states have return successors, (766), 553 states have call predecessors, (766), 565 states have call successors, (766) [2024-11-07 00:59:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 10356 transitions. [2024-11-07 00:59:21,276 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 10356 transitions. Word has length 140 [2024-11-07 00:59:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:21,277 INFO L471 AbstractCegarLoop]: Abstraction has 7315 states and 10356 transitions. [2024-11-07 00:59:21,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:59:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 10356 transitions. [2024-11-07 00:59:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:59:21,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:21,284 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:21,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 00:59:21,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:21,489 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:21,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash -476203630, now seen corresponding path program 1 times [2024-11-07 00:59:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:21,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244710059] [2024-11-07 00:59:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:21,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:59:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:59:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:59:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 00:59:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:59:21,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:21,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244710059] [2024-11-07 00:59:21,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244710059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:21,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470480324] [2024-11-07 00:59:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:21,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:21,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:21,618 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:21,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 00:59:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:21,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 00:59:21,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-07 00:59:21,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:21,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470480324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:21,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:21,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-07 00:59:21,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683560607] [2024-11-07 00:59:21,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:21,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:59:21,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:21,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:59:21,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:59:21,804 INFO L87 Difference]: Start difference. First operand 7315 states and 10356 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:59:22,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:22,239 INFO L93 Difference]: Finished difference Result 11545 states and 15786 transitions. [2024-11-07 00:59:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:59:22,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 140 [2024-11-07 00:59:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:22,272 INFO L225 Difference]: With dead ends: 11545 [2024-11-07 00:59:22,273 INFO L226 Difference]: Without dead ends: 6953 [2024-11-07 00:59:22,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 00:59:22,288 INFO L432 NwaCegarLoop]: 4047 mSDtfsCounter, 4134 mSDsluCounter, 8052 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4143 SdHoareTripleChecker+Valid, 12099 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:22,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4143 Valid, 12099 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:59:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2024-11-07 00:59:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 5221. [2024-11-07 00:59:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 4646 states have (on average 1.4829961256995265) internal successors, (6890), 4675 states have internal predecessors, (6890), 329 states have call successors, (329), 228 states have call predecessors, (329), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2024-11-07 00:59:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 7658 transitions. [2024-11-07 00:59:22,731 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 7658 transitions. Word has length 140 [2024-11-07 00:59:22,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:22,735 INFO L471 AbstractCegarLoop]: Abstraction has 5221 states and 7658 transitions. [2024-11-07 00:59:22,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 00:59:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 7658 transitions. [2024-11-07 00:59:22,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-07 00:59:22,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:22,744 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:22,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 00:59:22,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:22,947 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:22,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash 913090384, now seen corresponding path program 1 times [2024-11-07 00:59:22,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:22,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661028858] [2024-11-07 00:59:22,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:22,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 00:59:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 00:59:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 00:59:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 00:59:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:59:23,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:23,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661028858] [2024-11-07 00:59:23,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661028858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:23,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449792158] [2024-11-07 00:59:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:23,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:23,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:23,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 00:59:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:23,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 00:59:23,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 00:59:23,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 00:59:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-07 00:59:23,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449792158] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:23,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 00:59:23,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 9 [2024-11-07 00:59:23,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426277813] [2024-11-07 00:59:23,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:23,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 00:59:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:23,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 00:59:23,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:59:23,358 INFO L87 Difference]: Start difference. First operand 5221 states and 7658 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:59:23,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:23,849 INFO L93 Difference]: Finished difference Result 9241 states and 12438 transitions. [2024-11-07 00:59:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 00:59:23,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 140 [2024-11-07 00:59:23,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:23,876 INFO L225 Difference]: With dead ends: 9241 [2024-11-07 00:59:23,876 INFO L226 Difference]: Without dead ends: 7787 [2024-11-07 00:59:23,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 00:59:23,882 INFO L432 NwaCegarLoop]: 4196 mSDtfsCounter, 4173 mSDsluCounter, 4150 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4173 SdHoareTripleChecker+Valid, 8346 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:23,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4173 Valid, 8346 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:59:23,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7787 states. [2024-11-07 00:59:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7787 to 6486. [2024-11-07 00:59:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 5687 states have (on average 1.4241251978195886) internal successors, (8099), 5724 states have internal predecessors, (8099), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-07 00:59:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9165 transitions. [2024-11-07 00:59:24,184 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9165 transitions. Word has length 140 [2024-11-07 00:59:24,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:24,185 INFO L471 AbstractCegarLoop]: Abstraction has 6486 states and 9165 transitions. [2024-11-07 00:59:24,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-07 00:59:24,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9165 transitions. [2024-11-07 00:59:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 00:59:24,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:24,191 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:24,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-07 00:59:24,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:24,392 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:24,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:24,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1037241455, now seen corresponding path program 1 times [2024-11-07 00:59:24,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:24,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354222069] [2024-11-07 00:59:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:24,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 00:59:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-07 00:59:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 00:59:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 00:59:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 00:59:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 00:59:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 00:59:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 00:59:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:59:24,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:24,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354222069] [2024-11-07 00:59:24,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354222069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:24,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659139970] [2024-11-07 00:59:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:24,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:24,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:24,508 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:24,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 00:59:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:24,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:59:24,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-07 00:59:24,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:24,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659139970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:24,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:24,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:24,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401775990] [2024-11-07 00:59:24,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:24,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:24,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:24,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:24,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:24,635 INFO L87 Difference]: Start difference. First operand 6486 states and 9165 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:59:24,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:24,956 INFO L93 Difference]: Finished difference Result 10163 states and 13570 transitions. [2024-11-07 00:59:24,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:24,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 159 [2024-11-07 00:59:24,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:24,983 INFO L225 Difference]: With dead ends: 10163 [2024-11-07 00:59:24,983 INFO L226 Difference]: Without dead ends: 6573 [2024-11-07 00:59:24,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:24,996 INFO L432 NwaCegarLoop]: 4112 mSDtfsCounter, 4073 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 4231 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:24,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4073 Valid, 4231 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 00:59:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6573 states. [2024-11-07 00:59:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6573 to 6486. [2024-11-07 00:59:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 5687 states have (on average 1.4172674520836996) internal successors, (8060), 5724 states have internal predecessors, (8060), 457 states have call successors, (457), 316 states have call predecessors, (457), 340 states have return successors, (609), 449 states have call predecessors, (609), 457 states have call successors, (609) [2024-11-07 00:59:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9126 transitions. [2024-11-07 00:59:25,539 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9126 transitions. Word has length 159 [2024-11-07 00:59:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:25,539 INFO L471 AbstractCegarLoop]: Abstraction has 6486 states and 9126 transitions. [2024-11-07 00:59:25,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:59:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9126 transitions. [2024-11-07 00:59:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-07 00:59:25,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:25,546 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:25,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 00:59:25,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-07 00:59:25,748 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:25,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1070150895, now seen corresponding path program 1 times [2024-11-07 00:59:25,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:25,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918838230] [2024-11-07 00:59:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:25,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 00:59:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-07 00:59:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 00:59:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 00:59:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 00:59:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-07 00:59:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 00:59:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 00:59:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-07 00:59:25,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918838230] [2024-11-07 00:59:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918838230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:25,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:25,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 00:59:25,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629902646] [2024-11-07 00:59:25,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:25,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:59:25,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:59:25,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 00:59:25,899 INFO L87 Difference]: Start difference. First operand 6486 states and 9126 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-07 00:59:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:26,417 INFO L93 Difference]: Finished difference Result 10606 states and 13952 transitions. [2024-11-07 00:59:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:59:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 159 [2024-11-07 00:59:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:26,443 INFO L225 Difference]: With dead ends: 10606 [2024-11-07 00:59:26,443 INFO L226 Difference]: Without dead ends: 6255 [2024-11-07 00:59:26,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:26,453 INFO L432 NwaCegarLoop]: 4054 mSDtfsCounter, 211 mSDsluCounter, 11978 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 16032 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:26,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 16032 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 00:59:26,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2024-11-07 00:59:26,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6037. [2024-11-07 00:59:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6037 states, 5339 states have (on average 1.435100206031092) internal successors, (7662), 5407 states have internal predecessors, (7662), 369 states have call successors, (369), 258 states have call predecessors, (369), 327 states have return successors, (541), 373 states have call predecessors, (541), 369 states have call successors, (541) [2024-11-07 00:59:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6037 states to 6037 states and 8572 transitions. [2024-11-07 00:59:26,802 INFO L78 Accepts]: Start accepts. Automaton has 6037 states and 8572 transitions. Word has length 159 [2024-11-07 00:59:26,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:26,802 INFO L471 AbstractCegarLoop]: Abstraction has 6037 states and 8572 transitions. [2024-11-07 00:59:26,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-07 00:59:26,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6037 states and 8572 transitions. [2024-11-07 00:59:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-07 00:59:26,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:26,807 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:26,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 00:59:26,807 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:26,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1674988684, now seen corresponding path program 1 times [2024-11-07 00:59:26,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:26,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197450195] [2024-11-07 00:59:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:26,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 00:59:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 00:59:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:59:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 00:59:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-07 00:59:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 00:59:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-07 00:59:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-07 00:59:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:59:26,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:26,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197450195] [2024-11-07 00:59:26,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197450195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:26,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575416433] [2024-11-07 00:59:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:26,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:26,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:26,923 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:26,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 00:59:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:27,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 00:59:27,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-07 00:59:27,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:27,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575416433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:27,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:27,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-07 00:59:27,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801607030] [2024-11-07 00:59:27,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:27,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:27,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:27,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:27,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:27,081 INFO L87 Difference]: Start difference. First operand 6037 states and 8572 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-07 00:59:27,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:27,377 INFO L93 Difference]: Finished difference Result 8596 states and 11770 transitions. [2024-11-07 00:59:27,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:27,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 161 [2024-11-07 00:59:27,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:27,404 INFO L225 Difference]: With dead ends: 8596 [2024-11-07 00:59:27,404 INFO L226 Difference]: Without dead ends: 5999 [2024-11-07 00:59:27,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 00:59:27,413 INFO L432 NwaCegarLoop]: 4192 mSDtfsCounter, 87 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 8272 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:27,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 8272 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-11-07 00:59:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5985. [2024-11-07 00:59:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5295 states have (on average 1.4273843248347498) internal successors, (7558), 5361 states have internal predecessors, (7558), 365 states have call successors, (365), 254 states have call predecessors, (365), 323 states have return successors, (537), 371 states have call predecessors, (537), 365 states have call successors, (537) [2024-11-07 00:59:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 8460 transitions. [2024-11-07 00:59:27,713 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 8460 transitions. Word has length 161 [2024-11-07 00:59:27,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:27,714 INFO L471 AbstractCegarLoop]: Abstraction has 5985 states and 8460 transitions. [2024-11-07 00:59:27,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-07 00:59:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 8460 transitions. [2024-11-07 00:59:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-07 00:59:27,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:27,720 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:27,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 00:59:27,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 00:59:27,922 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:27,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:27,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1011605991, now seen corresponding path program 1 times [2024-11-07 00:59:27,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:27,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653531546] [2024-11-07 00:59:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:27,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 00:59:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 00:59:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:59:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-07 00:59:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 00:59:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-07 00:59:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 00:59:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 00:59:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:59:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653531546] [2024-11-07 00:59:28,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653531546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8759590] [2024-11-07 00:59:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:28,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:28,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:28,126 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:28,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 00:59:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:28,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 00:59:28,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-07 00:59:28,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:28,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8759590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:28,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-07 00:59:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002394495] [2024-11-07 00:59:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:28,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 00:59:28,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 00:59:28,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:59:28,375 INFO L87 Difference]: Start difference. First operand 5985 states and 8460 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 00:59:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:28,604 INFO L93 Difference]: Finished difference Result 8650 states and 11543 transitions. [2024-11-07 00:59:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 00:59:28,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 162 [2024-11-07 00:59:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:28,625 INFO L225 Difference]: With dead ends: 8650 [2024-11-07 00:59:28,626 INFO L226 Difference]: Without dead ends: 4802 [2024-11-07 00:59:28,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 00:59:28,634 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 16351 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20441 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:28,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20441 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:28,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2024-11-07 00:59:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 4768. [2024-11-07 00:59:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4338 states have (on average 1.487782388197326) internal successors, (6454), 4370 states have internal predecessors, (6454), 217 states have call successors, (217), 151 states have call predecessors, (217), 211 states have return successors, (330), 246 states have call predecessors, (330), 217 states have call successors, (330) [2024-11-07 00:59:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 7001 transitions. [2024-11-07 00:59:28,907 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 7001 transitions. Word has length 162 [2024-11-07 00:59:28,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:28,908 INFO L471 AbstractCegarLoop]: Abstraction has 4768 states and 7001 transitions. [2024-11-07 00:59:28,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 00:59:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 7001 transitions. [2024-11-07 00:59:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-07 00:59:28,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:28,913 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:28,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-07 00:59:29,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 00:59:29,114 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:29,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1707965800, now seen corresponding path program 1 times [2024-11-07 00:59:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:29,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340249924] [2024-11-07 00:59:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 00:59:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:59:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 00:59:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 00:59:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 00:59:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 00:59:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 00:59:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 00:59:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:59:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340249924] [2024-11-07 00:59:29,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340249924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227025170] [2024-11-07 00:59:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:29,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:29,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:29,224 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:29,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 00:59:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 00:59:29,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:29,373 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-07 00:59:29,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:29,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227025170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:29,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:29,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-07 00:59:29,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008328869] [2024-11-07 00:59:29,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:29,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:59:29,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:29,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:59:29,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:59:29,376 INFO L87 Difference]: Start difference. First operand 4768 states and 7001 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:59:29,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:29,510 INFO L93 Difference]: Finished difference Result 5849 states and 8259 transitions. [2024-11-07 00:59:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:59:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-07 00:59:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:29,525 INFO L225 Difference]: With dead ends: 5849 [2024-11-07 00:59:29,525 INFO L226 Difference]: Without dead ends: 3262 [2024-11-07 00:59:29,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-07 00:59:29,529 INFO L432 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16354 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:29,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-07 00:59:29,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3262. [2024-11-07 00:59:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3071 states have (on average 1.6265060240963856) internal successors, (4995), 3083 states have internal predecessors, (4995), 95 states have call successors, (95), 70 states have call predecessors, (95), 94 states have return successors, (126), 108 states have call predecessors, (126), 95 states have call successors, (126) [2024-11-07 00:59:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 5216 transitions. [2024-11-07 00:59:29,638 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 5216 transitions. Word has length 167 [2024-11-07 00:59:29,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:29,638 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 5216 transitions. [2024-11-07 00:59:29,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:59:29,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 5216 transitions. [2024-11-07 00:59:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-07 00:59:29,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:29,641 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 00:59:29,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 00:59:29,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:29,842 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:29,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash -481877974, now seen corresponding path program 1 times [2024-11-07 00:59:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:29,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897251119] [2024-11-07 00:59:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 00:59:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 00:59:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 00:59:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 00:59:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 00:59:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 00:59:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-07 00:59:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 00:59:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 00:59:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 00:59:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-07 00:59:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 00:59:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-07 00:59:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-07 00:59:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 00:59:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-07 00:59:29,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897251119] [2024-11-07 00:59:29,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897251119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 00:59:29,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572854702] [2024-11-07 00:59:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:29,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 00:59:29,948 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 00:59:29,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 00:59:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:30,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 00:59:30,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 00:59:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-07 00:59:30,096 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 00:59:30,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572854702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:30,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 00:59:30,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2024-11-07 00:59:30,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924991246] [2024-11-07 00:59:30,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:30,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 00:59:30,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:30,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 00:59:30,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:59:30,098 INFO L87 Difference]: Start difference. First operand 3262 states and 5216 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:59:30,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:30,196 INFO L93 Difference]: Finished difference Result 3764 states and 5786 transitions. [2024-11-07 00:59:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 00:59:30,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2024-11-07 00:59:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:30,206 INFO L225 Difference]: With dead ends: 3764 [2024-11-07 00:59:30,207 INFO L226 Difference]: Without dead ends: 2123 [2024-11-07 00:59:30,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 00:59:30,210 INFO L432 NwaCegarLoop]: 4088 mSDtfsCounter, 0 mSDsluCounter, 12258 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16346 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:30,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16346 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 00:59:30,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2024-11-07 00:59:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2024-11-07 00:59:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.8656927426955703) internal successors, (3959), 2122 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3959 transitions. [2024-11-07 00:59:30,236 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3959 transitions. Word has length 167 [2024-11-07 00:59:30,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:30,237 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 3959 transitions. [2024-11-07 00:59:30,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-07 00:59:30,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3959 transitions. [2024-11-07 00:59:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1687 [2024-11-07 00:59:30,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:30,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:30,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 00:59:30,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 00:59:30,476 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:30,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1675397453, now seen corresponding path program 1 times [2024-11-07 00:59:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:30,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091653346] [2024-11-07 00:59:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:30,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:32,383 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 00:59:32,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:32,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091653346] [2024-11-07 00:59:32,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091653346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:32,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:32,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:59:32,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726852090] [2024-11-07 00:59:32,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:32,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:59:32,389 INFO L87 Difference]: Start difference. First operand 2123 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:37,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:37,875 INFO L93 Difference]: Finished difference Result 6058 states and 11375 transitions. [2024-11-07 00:59:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:37,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 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 1686 [2024-11-07 00:59:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:37,893 INFO L225 Difference]: With dead ends: 6058 [2024-11-07 00:59:37,893 INFO L226 Difference]: Without dead ends: 3938 [2024-11-07 00:59:37,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 00:59:37,896 INFO L432 NwaCegarLoop]: 1258 mSDtfsCounter, 581 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 4951 mSolverCounterSat, 2591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 7542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2591 IncrementalHoareTripleChecker+Valid, 4951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:37,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1412 Invalid, 7542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2591 Valid, 4951 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-07 00:59:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2024-11-07 00:59:37,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3922. [2024-11-07 00:59:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3921 states have (on average 1.7309359857179292) internal successors, (6787), 3921 states have internal predecessors, (6787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:37,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 6787 transitions. [2024-11-07 00:59:37,948 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 6787 transitions. Word has length 1686 [2024-11-07 00:59:37,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:37,951 INFO L471 AbstractCegarLoop]: Abstraction has 3922 states and 6787 transitions. [2024-11-07 00:59:37,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 2 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 6787 transitions. [2024-11-07 00:59:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1698 [2024-11-07 00:59:37,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:37,972 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:37,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 00:59:37,973 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:37,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:37,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1468236906, now seen corresponding path program 1 times [2024-11-07 00:59:37,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:37,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937023965] [2024-11-07 00:59:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:37,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:59:38,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:38,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937023965] [2024-11-07 00:59:38,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937023965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:38,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:59:38,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257279343] [2024-11-07 00:59:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:38,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:38,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:38,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:59:38,845 INFO L87 Difference]: Start difference. First operand 3922 states and 6787 transitions. Second operand has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:43,893 INFO L93 Difference]: Finished difference Result 11273 states and 19664 transitions. [2024-11-07 00:59:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:43,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 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 1697 [2024-11-07 00:59:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:43,911 INFO L225 Difference]: With dead ends: 11273 [2024-11-07 00:59:43,911 INFO L226 Difference]: Without dead ends: 7354 [2024-11-07 00:59:43,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 00:59:43,918 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 2704 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4474 mSolverCounterSat, 2374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 6848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2374 IncrementalHoareTripleChecker+Valid, 4474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:43,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 1696 Invalid, 6848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2374 Valid, 4474 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-07 00:59:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2024-11-07 00:59:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 7352. [2024-11-07 00:59:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7352 states, 7351 states have (on average 1.5521697728200246) internal successors, (11410), 7351 states have internal predecessors, (11410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7352 states to 7352 states and 11410 transitions. [2024-11-07 00:59:44,009 INFO L78 Accepts]: Start accepts. Automaton has 7352 states and 11410 transitions. Word has length 1697 [2024-11-07 00:59:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:44,009 INFO L471 AbstractCegarLoop]: Abstraction has 7352 states and 11410 transitions. [2024-11-07 00:59:44,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7352 states and 11410 transitions. [2024-11-07 00:59:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1716 [2024-11-07 00:59:44,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:44,033 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:44,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 00:59:44,034 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:44,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:44,034 INFO L85 PathProgramCache]: Analyzing trace with hash 755213852, now seen corresponding path program 1 times [2024-11-07 00:59:44,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:44,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009693225] [2024-11-07 00:59:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:44,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:45,073 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:59:45,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:45,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009693225] [2024-11-07 00:59:45,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009693225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:45,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:45,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 00:59:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850392175] [2024-11-07 00:59:45,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:45,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:45,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:59:45,078 INFO L87 Difference]: Start difference. First operand 7352 states and 11410 transitions. Second operand has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:50,152 INFO L93 Difference]: Finished difference Result 21535 states and 33517 transitions. [2024-11-07 00:59:50,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:50,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 0 states have call successors, (0), 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 1715 [2024-11-07 00:59:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:50,173 INFO L225 Difference]: With dead ends: 21535 [2024-11-07 00:59:50,173 INFO L226 Difference]: Without dead ends: 14186 [2024-11-07 00:59:50,181 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 00:59:50,182 INFO L432 NwaCegarLoop]: 3609 mSDtfsCounter, 2170 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 4761 mSolverCounterSat, 2214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 6975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2214 IncrementalHoareTripleChecker+Valid, 4761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:50,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 3855 Invalid, 6975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2214 Valid, 4761 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-07 00:59:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14186 states. [2024-11-07 00:59:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14186 to 14181. [2024-11-07 00:59:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14181 states, 14180 states have (on average 1.3787729196050775) internal successors, (19551), 14180 states have internal predecessors, (19551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14181 states to 14181 states and 19551 transitions. [2024-11-07 00:59:50,327 INFO L78 Accepts]: Start accepts. Automaton has 14181 states and 19551 transitions. Word has length 1715 [2024-11-07 00:59:50,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:50,327 INFO L471 AbstractCegarLoop]: Abstraction has 14181 states and 19551 transitions. [2024-11-07 00:59:50,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:50,328 INFO L276 IsEmpty]: Start isEmpty. Operand 14181 states and 19551 transitions. [2024-11-07 00:59:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1733 [2024-11-07 00:59:50,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:50,357 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:50,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 00:59:50,357 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:50,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:50,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1786550159, now seen corresponding path program 1 times [2024-11-07 00:59:50,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:50,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231658357] [2024-11-07 00:59:50,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:50,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:59:51,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231658357] [2024-11-07 00:59:51,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231658357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:51,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:51,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:59:51,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432212464] [2024-11-07 00:59:51,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:51,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:51,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:59:51,255 INFO L87 Difference]: Start difference. First operand 14181 states and 19551 transitions. Second operand has 3 states, 3 states have (on average 577.3333333333334) internal successors, (1732), 2 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 00:59:56,508 INFO L93 Difference]: Finished difference Result 41939 states and 57854 transitions. [2024-11-07 00:59:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 00:59:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 577.3333333333334) internal successors, (1732), 2 states have internal predecessors, (1732), 0 states have call successors, (0), 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 1732 [2024-11-07 00:59:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 00:59:56,547 INFO L225 Difference]: With dead ends: 41939 [2024-11-07 00:59:56,547 INFO L226 Difference]: Without dead ends: 27761 [2024-11-07 00:59:56,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 00:59:56,562 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 3145 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 2129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 6902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2129 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-07 00:59:56,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 1168 Invalid, 6902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2129 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-07 00:59:56,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27761 states. [2024-11-07 00:59:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27761 to 27761. [2024-11-07 00:59:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27761 states, 27760 states have (on average 1.325756484149856) internal successors, (36803), 27760 states have internal predecessors, (36803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27761 states to 27761 states and 36803 transitions. [2024-11-07 00:59:56,904 INFO L78 Accepts]: Start accepts. Automaton has 27761 states and 36803 transitions. Word has length 1732 [2024-11-07 00:59:56,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 00:59:56,905 INFO L471 AbstractCegarLoop]: Abstraction has 27761 states and 36803 transitions. [2024-11-07 00:59:56,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 577.3333333333334) internal successors, (1732), 2 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 00:59:56,906 INFO L276 IsEmpty]: Start isEmpty. Operand 27761 states and 36803 transitions. [2024-11-07 00:59:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1792 [2024-11-07 00:59:56,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 00:59:56,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:59:56,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-07 00:59:56,947 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 00:59:56,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 00:59:56,948 INFO L85 PathProgramCache]: Analyzing trace with hash 8163919, now seen corresponding path program 1 times [2024-11-07 00:59:56,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 00:59:56,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716649221] [2024-11-07 00:59:56,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 00:59:56,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 00:59:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 00:59:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 00:59:57,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 00:59:57,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716649221] [2024-11-07 00:59:57,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716649221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 00:59:57,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 00:59:57,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 00:59:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259859650] [2024-11-07 00:59:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 00:59:57,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 00:59:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 00:59:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 00:59:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 00:59:57,938 INFO L87 Difference]: Start difference. First operand 27761 states and 36803 transitions. Second operand has 3 states, 3 states have (on average 597.0) internal successors, (1791), 2 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)