./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.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_label45+token_ring.11.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', '88d274727136b53784890e6d1e1bf78dc0f4647c470f9c2edec85a87ad689472'] 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_label45+token_ring.11.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 88d274727136b53784890e6d1e1bf78dc0f4647c470f9c2edec85a87ad689472 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:03:36,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:03:36,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:03:36,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:03:36,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:03:36,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:03:36,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:03:36,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:03:36,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:03:36,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:03:36,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:03:36,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:03:36,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:03:36,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:03:36,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:03:36,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:03:36,993 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 -> 88d274727136b53784890e6d1e1bf78dc0f4647c470f9c2edec85a87ad689472 [2024-11-07 01:03:37,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:03:37,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:03:37,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:03:37,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:03:37,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:03:37,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-1.c [2024-11-07 01:03:38,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:03:39,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:03:39,534 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.11.cil-1.c [2024-11-07 01:03:39,573 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03253f4ad/bd832ea1fb224e3ab0311f68a7d36014/FLAGda1a6667c [2024-11-07 01:03:39,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03253f4ad/bd832ea1fb224e3ab0311f68a7d36014 [2024-11-07 01:03:40,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:03:40,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:03:40,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:03:40,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:03:40,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:03:40,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:40" (1/1) ... [2024-11-07 01:03:40,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742e537a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:40, skipping insertion in model container [2024-11-07 01:03:40,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:40" (1/1) ... [2024-11-07 01:03:40,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:03:41,290 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_label45+token_ring.11.cil-1.c[380323,380336] [2024-11-07 01:03:41,346 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_label45+token_ring.11.cil-1.c[383339,383352] [2024-11-07 01:03:41,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:03:41,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:03:42,019 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_label45+token_ring.11.cil-1.c[380323,380336] [2024-11-07 01:03:42,022 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_label45+token_ring.11.cil-1.c[383339,383352] [2024-11-07 01:03:42,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:03:42,085 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:03:42,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42 WrapperNode [2024-11-07 01:03:42,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:03:42,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:03:42,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:03:42,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:03:42,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,570 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13179 [2024-11-07 01:03:42,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:03:42,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:03:42,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:03:42,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:03:42,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,688 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 01:03:42,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:03:42,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:03:42,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:03:42,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:03:42,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (1/1) ... [2024-11-07 01:03:42,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:03:42,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:03:43,005 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 01:03:43,007 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 01:03:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:03:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:03:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:03:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:03:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:03:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:03:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:03:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-07 01:03:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-07 01:03:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:03:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:03:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:03:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:03:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:03:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:03:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:03:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:03:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:03:43,147 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:03:43,153 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:03:49,566 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-11-07 01:03:49,566 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:03:49,660 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:03:49,660 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-07 01:03:49,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:49 BoogieIcfgContainer [2024-11-07 01:03:49,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:03:49,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:03:49,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:03:49,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:03:49,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:03:40" (1/3) ... [2024-11-07 01:03:49,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a25c8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:49, skipping insertion in model container [2024-11-07 01:03:49,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:42" (2/3) ... [2024-11-07 01:03:49,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a25c8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:49, skipping insertion in model container [2024-11-07 01:03:49,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:49" (3/3) ... [2024-11-07 01:03:49,680 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.11.cil-1.c [2024-11-07 01:03:49,700 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:03:49,701 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:03:49,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:03:49,782 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;@52b4871a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:03:49,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:03:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-07 01:03:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:03:49,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:49,849 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] [2024-11-07 01:03:49,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:49,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1643265123, now seen corresponding path program 1 times [2024-11-07 01:03:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:49,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380412970] [2024-11-07 01:03:49,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:49,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:03:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:03:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:03:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:03:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,347 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 01:03:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:50,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380412970] [2024-11-07 01:03:50,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380412970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:50,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:50,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:03:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90229151] [2024-11-07 01:03:50,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:50,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:03:50,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:50,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:03:50,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:03:50,374 INFO L87 Difference]: Start difference. First operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:52,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:52,041 INFO L93 Difference]: Finished difference Result 5238 states and 9599 transitions. [2024-11-07 01:03:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:03:52,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:03:52,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:52,063 INFO L225 Difference]: With dead ends: 5238 [2024-11-07 01:03:52,063 INFO L226 Difference]: Without dead ends: 2623 [2024-11-07 01:03:52,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:03:52,076 INFO L432 NwaCegarLoop]: 4371 mSDtfsCounter, 983 mSDsluCounter, 12481 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 16852 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:52,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 16852 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:03:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2024-11-07 01:03:52,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2492. [2024-11-07 01:03:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8245828245828246) internal successors, (4483), 2460 states have internal predecessors, (4483), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 01:03:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4535 transitions. [2024-11-07 01:03:52,227 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4535 transitions. Word has length 168 [2024-11-07 01:03:52,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:52,228 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 4535 transitions. [2024-11-07 01:03:52,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:52,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4535 transitions. [2024-11-07 01:03:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:03:52,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:52,235 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] [2024-11-07 01:03:52,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:03:52,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:52,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash -238073445, now seen corresponding path program 1 times [2024-11-07 01:03:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:52,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073005470] [2024-11-07 01:03:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:03:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:03:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:03:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:03:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,541 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 01:03:52,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:52,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073005470] [2024-11-07 01:03:52,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073005470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:52,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:52,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:03:52,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636759287] [2024-11-07 01:03:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:52,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:03:52,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:03:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:03:52,544 INFO L87 Difference]: Start difference. First operand 2492 states and 4535 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:54,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:54,812 INFO L93 Difference]: Finished difference Result 3474 states and 6110 transitions. [2024-11-07 01:03:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:03:54,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:03:54,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:54,826 INFO L225 Difference]: With dead ends: 3474 [2024-11-07 01:03:54,826 INFO L226 Difference]: Without dead ends: 3122 [2024-11-07 01:03:54,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:03:54,828 INFO L432 NwaCegarLoop]: 4274 mSDtfsCounter, 5431 mSDsluCounter, 12841 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5449 SdHoareTripleChecker+Valid, 17115 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:54,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5449 Valid, 17115 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:03:54,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2024-11-07 01:03:54,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2859. [2024-11-07 01:03:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2797 states have (on average 1.794780121558813) internal successors, (5020), 2801 states have internal predecessors, (5020), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-07 01:03:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 5115 transitions. [2024-11-07 01:03:55,015 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 5115 transitions. Word has length 168 [2024-11-07 01:03:55,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:55,016 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 5115 transitions. [2024-11-07 01:03:55,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:55,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 5115 transitions. [2024-11-07 01:03:55,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:03:55,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:55,018 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] [2024-11-07 01:03:55,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:03:55,019 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:55,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:55,019 INFO L85 PathProgramCache]: Analyzing trace with hash 684327063, now seen corresponding path program 1 times [2024-11-07 01:03:55,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:55,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993388280] [2024-11-07 01:03:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:55,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:03:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:03:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:03:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:03:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,337 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 01:03:55,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:55,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993388280] [2024-11-07 01:03:55,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993388280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:55,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:55,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:55,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749285390] [2024-11-07 01:03:55,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:55,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:55,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:55,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:55,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:55,342 INFO L87 Difference]: Start difference. First operand 2859 states and 5115 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:58,378 INFO L93 Difference]: Finished difference Result 4356 states and 7519 transitions. [2024-11-07 01:03:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:58,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:03:58,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:58,399 INFO L225 Difference]: With dead ends: 4356 [2024-11-07 01:03:58,402 INFO L226 Difference]: Without dead ends: 3637 [2024-11-07 01:03:58,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:58,405 INFO L432 NwaCegarLoop]: 4519 mSDtfsCounter, 5458 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5476 SdHoareTripleChecker+Valid, 22286 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:58,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5476 Valid, 22286 Invalid, 3405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:03:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2024-11-07 01:03:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3201. [2024-11-07 01:03:58,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3112 states have (on average 1.7696015424164524) internal successors, (5507), 3117 states have internal predecessors, (5507), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-07 01:03:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 5644 transitions. [2024-11-07 01:03:58,505 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 5644 transitions. Word has length 168 [2024-11-07 01:03:58,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:58,505 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 5644 transitions. [2024-11-07 01:03:58,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:03:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 5644 transitions. [2024-11-07 01:03:58,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:03:58,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:58,507 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] [2024-11-07 01:03:58,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:03:58,507 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:58,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:58,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1713660775, now seen corresponding path program 1 times [2024-11-07 01:03:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:58,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996043056] [2024-11-07 01:03:58,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:58,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:03:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:03:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:03:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:03:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,749 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 01:03:58,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:58,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996043056] [2024-11-07 01:03:58,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996043056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:58,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:58,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:58,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677097866] [2024-11-07 01:03:58,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:58,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:58,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:58,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:58,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:58,750 INFO L87 Difference]: Start difference. First operand 3201 states and 5644 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:01,725 INFO L93 Difference]: Finished difference Result 5657 states and 9580 transitions. [2024-11-07 01:04:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:01,725 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:01,740 INFO L225 Difference]: With dead ends: 5657 [2024-11-07 01:04:01,740 INFO L226 Difference]: Without dead ends: 4596 [2024-11-07 01:04:01,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:01,743 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5456 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5474 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:01,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5474 Valid, 22284 Invalid, 3403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3338 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:04:01,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2024-11-07 01:04:01,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 3886. [2024-11-07 01:04:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3743 states have (on average 1.7317659631311781) internal successors, (6482), 3750 states have internal predecessors, (6482), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-07 01:04:01,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 6707 transitions. [2024-11-07 01:04:01,837 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 6707 transitions. Word has length 168 [2024-11-07 01:04:01,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:01,837 INFO L471 AbstractCegarLoop]: Abstraction has 3886 states and 6707 transitions. [2024-11-07 01:04:01,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:01,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 6707 transitions. [2024-11-07 01:04:01,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:01,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:01,843 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] [2024-11-07 01:04:01,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:04:01,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:01,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1375373225, now seen corresponding path program 1 times [2024-11-07 01:04:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:01,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328046294] [2024-11-07 01:04:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:02,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:02,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:02,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:02,041 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 01:04:02,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:02,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328046294] [2024-11-07 01:04:02,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328046294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:02,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:02,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629836745] [2024-11-07 01:04:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:02,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:02,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:02,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:02,043 INFO L87 Difference]: Start difference. First operand 3886 states and 6707 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:05,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:05,165 INFO L93 Difference]: Finished difference Result 8162 states and 13523 transitions. [2024-11-07 01:04:05,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:05,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:05,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:05,202 INFO L225 Difference]: With dead ends: 8162 [2024-11-07 01:04:05,202 INFO L226 Difference]: Without dead ends: 6416 [2024-11-07 01:04:05,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:05,215 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5452 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5470 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:05,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5470 Valid, 22284 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3329 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:04:05,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2024-11-07 01:04:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 5257. [2024-11-07 01:04:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5006 states have (on average 1.6843787455053936) internal successors, (8432), 5017 states have internal predecessors, (8432), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-07 01:04:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8839 transitions. [2024-11-07 01:04:05,424 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8839 transitions. Word has length 168 [2024-11-07 01:04:05,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:05,424 INFO L471 AbstractCegarLoop]: Abstraction has 5257 states and 8839 transitions. [2024-11-07 01:04:05,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8839 transitions. [2024-11-07 01:04:05,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:05,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:05,431 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] [2024-11-07 01:04:05,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:04:05,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:05,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:05,432 INFO L85 PathProgramCache]: Analyzing trace with hash -948818727, now seen corresponding path program 1 times [2024-11-07 01:04:05,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:05,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613112563] [2024-11-07 01:04:05,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:05,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:05,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:05,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:05,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:05,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:05,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:05,623 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 01:04:05,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613112563] [2024-11-07 01:04:05,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613112563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:05,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:05,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937911447] [2024-11-07 01:04:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:05,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:05,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:05,625 INFO L87 Difference]: Start difference. First operand 5257 states and 8839 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:08,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:08,741 INFO L93 Difference]: Finished difference Result 13171 states and 21425 transitions. [2024-11-07 01:04:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:08,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:08,774 INFO L225 Difference]: With dead ends: 13171 [2024-11-07 01:04:08,776 INFO L226 Difference]: Without dead ends: 10054 [2024-11-07 01:04:08,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:08,782 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5448 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5466 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:08,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5466 Valid, 22284 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:04:08,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10054 states. [2024-11-07 01:04:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10054 to 8004. [2024-11-07 01:04:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8004 states, 7537 states have (on average 1.6369908451638584) internal successors, (12338), 7556 states have internal predecessors, (12338), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-07 01:04:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8004 states to 8004 states and 13127 transitions. [2024-11-07 01:04:09,000 INFO L78 Accepts]: Start accepts. Automaton has 8004 states and 13127 transitions. Word has length 168 [2024-11-07 01:04:09,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:09,001 INFO L471 AbstractCegarLoop]: Abstraction has 8004 states and 13127 transitions. [2024-11-07 01:04:09,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8004 states and 13127 transitions. [2024-11-07 01:04:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:09,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:09,006 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] [2024-11-07 01:04:09,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:04:09,006 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:09,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:09,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1489248233, now seen corresponding path program 1 times [2024-11-07 01:04:09,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:09,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156329303] [2024-11-07 01:04:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:09,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:09,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:09,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:09,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:09,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:09,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:09,253 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 01:04:09,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:09,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156329303] [2024-11-07 01:04:09,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156329303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:09,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:09,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:09,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757406201] [2024-11-07 01:04:09,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:09,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:09,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:09,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:09,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:09,255 INFO L87 Difference]: Start difference. First operand 8004 states and 13127 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:12,400 INFO L93 Difference]: Finished difference Result 23188 states and 37287 transitions. [2024-11-07 01:04:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:12,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:12,440 INFO L225 Difference]: With dead ends: 23188 [2024-11-07 01:04:12,440 INFO L226 Difference]: Without dead ends: 17324 [2024-11-07 01:04:12,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:12,451 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5450 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:12,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 22284 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:04:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17324 states. [2024-11-07 01:04:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17324 to 13511. [2024-11-07 01:04:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 12612 states have (on average 1.5991119568664764) internal successors, (20168), 12647 states have internal predecessors, (20168), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-07 01:04:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 21775 transitions. [2024-11-07 01:04:13,033 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 21775 transitions. Word has length 168 [2024-11-07 01:04:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:13,037 INFO L471 AbstractCegarLoop]: Abstraction has 13511 states and 21775 transitions. [2024-11-07 01:04:13,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:13,038 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 21775 transitions. [2024-11-07 01:04:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:13,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:13,050 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] [2024-11-07 01:04:13,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:04:13,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:13,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1645228775, now seen corresponding path program 1 times [2024-11-07 01:04:13,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:13,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608770647] [2024-11-07 01:04:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:13,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:13,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:13,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:13,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:13,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:13,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:13,434 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 01:04:13,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:13,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608770647] [2024-11-07 01:04:13,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608770647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:13,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:13,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:13,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826402318] [2024-11-07 01:04:13,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:13,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:13,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:13,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:13,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:13,436 INFO L87 Difference]: Start difference. First operand 13511 states and 21775 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:15,522 INFO L93 Difference]: Finished difference Result 28900 states and 46552 transitions. [2024-11-07 01:04:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:04:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:15,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:15,584 INFO L225 Difference]: With dead ends: 28900 [2024-11-07 01:04:15,584 INFO L226 Difference]: Without dead ends: 17529 [2024-11-07 01:04:15,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:04:15,609 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 5043 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 21042 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:15,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 21042 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:04:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17529 states. [2024-11-07 01:04:16,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17529 to 13511. [2024-11-07 01:04:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 12612 states have (on average 1.5964954012052015) internal successors, (20135), 12647 states have internal predecessors, (20135), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-07 01:04:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 21742 transitions. [2024-11-07 01:04:16,118 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 21742 transitions. Word has length 168 [2024-11-07 01:04:16,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:16,118 INFO L471 AbstractCegarLoop]: Abstraction has 13511 states and 21742 transitions. [2024-11-07 01:04:16,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:16,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 21742 transitions. [2024-11-07 01:04:16,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:16,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:16,126 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] [2024-11-07 01:04:16,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:04:16,126 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:16,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:16,127 INFO L85 PathProgramCache]: Analyzing trace with hash 861868699, now seen corresponding path program 1 times [2024-11-07 01:04:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256889979] [2024-11-07 01:04:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:16,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:16,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:16,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:16,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:16,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:16,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:16,434 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 01:04:16,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:16,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256889979] [2024-11-07 01:04:16,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256889979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:16,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:16,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:16,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217015855] [2024-11-07 01:04:16,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:16,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:16,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:16,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:16,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:16,437 INFO L87 Difference]: Start difference. First operand 13511 states and 21742 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:20,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:20,489 INFO L93 Difference]: Finished difference Result 43156 states and 68909 transitions. [2024-11-07 01:04:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:20,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:20,623 INFO L225 Difference]: With dead ends: 43156 [2024-11-07 01:04:20,623 INFO L226 Difference]: Without dead ends: 31785 [2024-11-07 01:04:20,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:20,656 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5439 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5457 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:20,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5457 Valid, 22284 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:04:20,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31785 states. [2024-11-07 01:04:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31785 to 24620. [2024-11-07 01:04:21,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 22857 states have (on average 1.570853567834799) internal successors, (35905), 22924 states have internal predecessors, (35905), 1307 states have call successors, (1307), 391 states have call predecessors, (1307), 454 states have return successors, (2098), 1368 states have call predecessors, (2098), 1305 states have call successors, (2098) [2024-11-07 01:04:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 39310 transitions. [2024-11-07 01:04:21,661 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 39310 transitions. Word has length 168 [2024-11-07 01:04:21,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:21,661 INFO L471 AbstractCegarLoop]: Abstraction has 24620 states and 39310 transitions. [2024-11-07 01:04:21,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 39310 transitions. [2024-11-07 01:04:21,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:21,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:21,671 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] [2024-11-07 01:04:21,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:04:21,672 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:21,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1274014503, now seen corresponding path program 1 times [2024-11-07 01:04:21,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:21,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272359951] [2024-11-07 01:04:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:21,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:21,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:21,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:21,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:21,843 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 01:04:21,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:21,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272359951] [2024-11-07 01:04:21,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272359951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:21,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:21,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:21,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993401603] [2024-11-07 01:04:21,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:21,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:21,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:21,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:21,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:21,845 INFO L87 Difference]: Start difference. First operand 24620 states and 39310 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:26,679 INFO L93 Difference]: Finished difference Result 83227 states and 133155 transitions. [2024-11-07 01:04:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:26,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:26,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:26,868 INFO L225 Difference]: With dead ends: 83227 [2024-11-07 01:04:26,868 INFO L226 Difference]: Without dead ends: 60747 [2024-11-07 01:04:26,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:26,923 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5438 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5456 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:26,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5456 Valid, 22284 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-07 01:04:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60747 states. [2024-11-07 01:04:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60747 to 46897. [2024-11-07 01:04:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46897 states, 43406 states have (on average 1.555798737501728) internal successors, (67531), 43537 states have internal predecessors, (67531), 2587 states have call successors, (2587), 775 states have call predecessors, (2587), 902 states have return successors, (4900), 2712 states have call predecessors, (4900), 2585 states have call successors, (4900) [2024-11-07 01:04:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46897 states to 46897 states and 75018 transitions. [2024-11-07 01:04:28,960 INFO L78 Accepts]: Start accepts. Automaton has 46897 states and 75018 transitions. Word has length 168 [2024-11-07 01:04:28,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:28,960 INFO L471 AbstractCegarLoop]: Abstraction has 46897 states and 75018 transitions. [2024-11-07 01:04:28,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:28,961 INFO L276 IsEmpty]: Start isEmpty. Operand 46897 states and 75018 transitions. [2024-11-07 01:04:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:28,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:28,980 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] [2024-11-07 01:04:28,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:04:28,980 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:28,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1204366629, now seen corresponding path program 1 times [2024-11-07 01:04:28,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:28,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510150859] [2024-11-07 01:04:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:28,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:29,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:29,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:29,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:29,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:29,290 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 01:04:29,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:29,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510150859] [2024-11-07 01:04:29,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510150859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:29,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:29,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:29,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240959274] [2024-11-07 01:04:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:29,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:29,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:29,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:29,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:29,292 INFO L87 Difference]: Start difference. First operand 46897 states and 75018 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:36,198 INFO L93 Difference]: Finished difference Result 163366 states and 263489 transitions. [2024-11-07 01:04:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:36,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:36,614 INFO L225 Difference]: With dead ends: 163366 [2024-11-07 01:04:36,614 INFO L226 Difference]: Without dead ends: 118609 [2024-11-07 01:04:36,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:36,758 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5437 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:36,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 22284 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 01:04:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118609 states. [2024-11-07 01:04:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118609 to 91578. [2024-11-07 01:04:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91578 states, 84631 states have (on average 1.5475771289480214) internal successors, (130973), 84890 states have internal predecessors, (130973), 5147 states have call successors, (5147), 1543 states have call predecessors, (5147), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-07 01:04:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91578 states to 91578 states and 148082 transitions. [2024-11-07 01:04:41,087 INFO L78 Accepts]: Start accepts. Automaton has 91578 states and 148082 transitions. Word has length 168 [2024-11-07 01:04:41,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:41,091 INFO L471 AbstractCegarLoop]: Abstraction has 91578 states and 148082 transitions. [2024-11-07 01:04:41,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 91578 states and 148082 transitions. [2024-11-07 01:04:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:41,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:41,158 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] [2024-11-07 01:04:41,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:04:41,158 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:41,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:41,158 INFO L85 PathProgramCache]: Analyzing trace with hash -786477927, now seen corresponding path program 1 times [2024-11-07 01:04:41,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:41,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495539252] [2024-11-07 01:04:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:41,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:41,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:41,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:41,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:41,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:41,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:41,373 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 01:04:41,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:41,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495539252] [2024-11-07 01:04:41,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495539252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:41,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:41,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:41,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403887432] [2024-11-07 01:04:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:41,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:41,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:41,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:41,374 INFO L87 Difference]: Start difference. First operand 91578 states and 148082 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:47,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:47,972 INFO L93 Difference]: Finished difference Result 209666 states and 345979 transitions. [2024-11-07 01:04:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:04:47,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-07 01:04:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:48,377 INFO L225 Difference]: With dead ends: 209666 [2024-11-07 01:04:48,378 INFO L226 Difference]: Without dead ends: 120228 [2024-11-07 01:04:48,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:04:48,576 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 5044 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 21042 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:48,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5063 Valid, 21042 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:04:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120228 states. [2024-11-07 01:04:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120228 to 91578. [2024-11-07 01:04:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91578 states, 84631 states have (on average 1.5445404166322034) internal successors, (130716), 84890 states have internal predecessors, (130716), 5147 states have call successors, (5147), 1543 states have call predecessors, (5147), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-07 01:04:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91578 states to 91578 states and 147825 transitions. [2024-11-07 01:04:52,881 INFO L78 Accepts]: Start accepts. Automaton has 91578 states and 147825 transitions. Word has length 168 [2024-11-07 01:04:52,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:52,882 INFO L471 AbstractCegarLoop]: Abstraction has 91578 states and 147825 transitions. [2024-11-07 01:04:52,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:04:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 91578 states and 147825 transitions. [2024-11-07 01:04:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-07 01:04:52,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:52,919 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] [2024-11-07 01:04:52,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:04:52,919 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:52,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash 612475675, now seen corresponding path program 1 times [2024-11-07 01:04:52,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:52,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145342783] [2024-11-07 01:04:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:52,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:53,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 01:04:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:53,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:04:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:53,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 01:04:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:53,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 01:04:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:53,116 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 01:04:53,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:53,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145342783] [2024-11-07 01:04:53,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145342783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:53,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:53,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:53,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799561049] [2024-11-07 01:04:53,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:53,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:53,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:53,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:53,119 INFO L87 Difference]: Start difference. First operand 91578 states and 147825 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)