./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.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', 'f0e5700e5ac9932bdfeab3e919620f637ada74ab4466fc53a192536a8538b28f'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.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 f0e5700e5ac9932bdfeab3e919620f637ada74ab4466fc53a192536a8538b28f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:00:38,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:00:38,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:00:38,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:00:38,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:00:38,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:00:38,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:00:38,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:00:38,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:00:38,878 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:00:38,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:00:38,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:00:38,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:00:38,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:00:38,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:00:38,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:00:38,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:00:38,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:00:38,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:00:38,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:00:38,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:00:38,883 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 -> f0e5700e5ac9932bdfeab3e919620f637ada74ab4466fc53a192536a8538b28f [2024-11-07 01:00:39,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:00:39,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:00:39,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:00:39,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:00:39,143 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:00:39,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c [2024-11-07 01:00:40,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:00:40,960 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:00:40,961 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c [2024-11-07 01:00:41,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83a4ed87b/a858ae22b4dc4a3cadb11a60f16661fd/FLAG7179a1fa3 [2024-11-07 01:00:41,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83a4ed87b/a858ae22b4dc4a3cadb11a60f16661fd [2024-11-07 01:00:41,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:00:41,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:00:41,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:00:41,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:00:41,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:00:41,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:41" (1/1) ... [2024-11-07 01:00:41,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ee77f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:41, skipping insertion in model container [2024-11-07 01:00:41,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:41" (1/1) ... [2024-11-07 01:00:41,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:00:42,661 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c[381679,381692] [2024-11-07 01:00:42,688 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c[383339,383352] [2024-11-07 01:00:42,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:00:42,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:00:43,531 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c[381679,381692] [2024-11-07 01:00:43,536 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-2.c[383339,383352] [2024-11-07 01:00:43,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:00:43,608 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:00:43,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43 WrapperNode [2024-11-07 01:00:43,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:00:43,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:00:43,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:00:43,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:00:43,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:43,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,051 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2024-11-07 01:00:44,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:00:44,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:00:44,056 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:00:44,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:00:44,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,265 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 01:00:44,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:00:44,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:00:44,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:00:44,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:00:44,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (1/1) ... [2024-11-07 01:00:44,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:00:44,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:00:44,631 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 01:00:44,637 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 01:00:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:00:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:00:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:00:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:00:44,656 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:00:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:00:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:00:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:00:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:00:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:00:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:00:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:00:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:00:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:00:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:00:44,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:00:44,755 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:00:44,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:00:51,083 INFO L? ?]: Removed 1755 outVars from TransFormulas that were not future-live. [2024-11-07 01:00:51,083 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:00:51,137 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:00:51,140 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 01:00:51,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:51 BoogieIcfgContainer [2024-11-07 01:00:51,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:00:51,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:00:51,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:00:51,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:00:51,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:00:41" (1/3) ... [2024-11-07 01:00:51,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6c4dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:51, skipping insertion in model container [2024-11-07 01:00:51,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:43" (2/3) ... [2024-11-07 01:00:51,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6c4dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:51, skipping insertion in model container [2024-11-07 01:00:51,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:51" (3/3) ... [2024-11-07 01:00:51,151 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.12.cil-2.c [2024-11-07 01:00:51,162 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:00:51,163 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:00:51,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:00:51,249 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;@601179e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:00:51,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:00:51,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 2578 states, 2543 states have (on average 1.8387731026346834) internal successors, (4676), 2546 states have internal predecessors, (4676), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 01:00:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:00:51,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:51,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:51,276 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:51,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash -80490959, now seen corresponding path program 1 times [2024-11-07 01:00:51,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:51,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974566058] [2024-11-07 01:00:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:51,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:51,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:00:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:51,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:00:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:51,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:00:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:51,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:00:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:51,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:00:51,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:51,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974566058] [2024-11-07 01:00:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974566058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:51,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:51,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:00:51,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676296698] [2024-11-07 01:00:51,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:51,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:00:51,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:51,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:00:51,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:00:51,859 INFO L87 Difference]: Start difference. First operand has 2578 states, 2543 states have (on average 1.8387731026346834) internal successors, (4676), 2546 states have internal predecessors, (4676), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:53,715 INFO L93 Difference]: Finished difference Result 5292 states and 9690 transitions. [2024-11-07 01:00:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:00:53,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:00:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:53,736 INFO L225 Difference]: With dead ends: 5292 [2024-11-07 01:00:53,736 INFO L226 Difference]: Without dead ends: 2653 [2024-11-07 01:00:53,745 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 01:00:53,747 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 1051 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 16874 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:53,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 16874 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:00:53,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2024-11-07 01:00:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2511. [2024-11-07 01:00:53,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2477 states have (on average 1.8219620508679855) internal successors, (4513), 2479 states have internal predecessors, (4513), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 01:00:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4565 transitions. [2024-11-07 01:00:53,881 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4565 transitions. Word has length 178 [2024-11-07 01:00:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:53,881 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4565 transitions. [2024-11-07 01:00:53,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4565 transitions. [2024-11-07 01:00:53,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:00:53,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:53,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:53,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:00:53,885 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:53,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:53,886 INFO L85 PathProgramCache]: Analyzing trace with hash -170551249, now seen corresponding path program 1 times [2024-11-07 01:00:53,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:53,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242479128] [2024-11-07 01:00:53,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:53,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:54,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:00:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:54,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:00:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:54,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:00:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:54,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:00:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:54,141 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 01:00:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:54,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242479128] [2024-11-07 01:00:54,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242479128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:54,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:54,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:00:54,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272555055] [2024-11-07 01:00:54,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:54,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:00:54,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:00:54,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:00:54,146 INFO L87 Difference]: Start difference. First operand 2511 states and 4565 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:55,607 INFO L93 Difference]: Finished difference Result 3028 states and 5392 transitions. [2024-11-07 01:00:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:00:55,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:00:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:55,618 INFO L225 Difference]: With dead ends: 3028 [2024-11-07 01:00:55,618 INFO L226 Difference]: Without dead ends: 2653 [2024-11-07 01:00:55,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:00:55,620 INFO L432 NwaCegarLoop]: 4313 mSDtfsCounter, 1037 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16601 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:55,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16601 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:00:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2024-11-07 01:00:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2511. [2024-11-07 01:00:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2477 states have (on average 1.821558336697618) internal successors, (4512), 2479 states have internal predecessors, (4512), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 01:00:55,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4564 transitions. [2024-11-07 01:00:55,675 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4564 transitions. Word has length 178 [2024-11-07 01:00:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:55,675 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4564 transitions. [2024-11-07 01:00:55,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:55,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4564 transitions. [2024-11-07 01:00:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:00:55,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:55,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:55,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:00:55,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:55,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:55,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1574420435, now seen corresponding path program 1 times [2024-11-07 01:00:55,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:55,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971938888] [2024-11-07 01:00:55,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:55,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:55,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:55,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:00:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:55,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:00:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:56,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:00:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:56,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:00:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:56,048 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 01:00:56,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:56,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971938888] [2024-11-07 01:00:56,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971938888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:56,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:56,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:00:56,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638298117] [2024-11-07 01:00:56,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:56,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:00:56,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:56,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:00:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:00:56,049 INFO L87 Difference]: Start difference. First operand 2511 states and 4564 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:58,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:00:58,561 INFO L93 Difference]: Finished difference Result 3553 states and 6237 transitions. [2024-11-07 01:00:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:00:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:00:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:00:58,571 INFO L225 Difference]: With dead ends: 3553 [2024-11-07 01:00:58,571 INFO L226 Difference]: Without dead ends: 3183 [2024-11-07 01:00:58,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:00:58,572 INFO L432 NwaCegarLoop]: 4283 mSDtfsCounter, 5530 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5549 SdHoareTripleChecker+Valid, 17151 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:00:58,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5549 Valid, 17151 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:00:58,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2024-11-07 01:00:58,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 2900. [2024-11-07 01:00:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2838 states have (on average 1.7903453136011276) internal successors, (5081), 2841 states have internal predecessors, (5081), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-07 01:00:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 5178 transitions. [2024-11-07 01:00:58,628 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 5178 transitions. Word has length 178 [2024-11-07 01:00:58,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:00:58,628 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 5178 transitions. [2024-11-07 01:00:58,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:00:58,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 5178 transitions. [2024-11-07 01:00:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:00:58,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:00:58,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:00:58,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:00:58,630 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:00:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:00:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1844561585, now seen corresponding path program 1 times [2024-11-07 01:00:58,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:00:58,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372581659] [2024-11-07 01:00:58,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:00:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:00:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:58,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:00:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:58,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:00:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:58,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:00:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:58,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:00:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:58,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:00:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:00:58,883 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 01:00:58,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:00:58,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372581659] [2024-11-07 01:00:58,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372581659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:00:58,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:00:58,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:00:58,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65052864] [2024-11-07 01:00:58,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:00:58,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:00:58,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:00:58,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:00:58,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:00:58,885 INFO L87 Difference]: Start difference. First operand 2900 states and 5178 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:02,389 INFO L93 Difference]: Finished difference Result 4492 states and 7737 transitions. [2024-11-07 01:01:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:02,409 INFO L225 Difference]: With dead ends: 4492 [2024-11-07 01:01:02,413 INFO L226 Difference]: Without dead ends: 3733 [2024-11-07 01:01:02,415 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 01:01:02,420 INFO L432 NwaCegarLoop]: 4534 mSDtfsCounter, 5565 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5584 SdHoareTripleChecker+Valid, 22352 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:02,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5584 Valid, 22352 Invalid, 3643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-07 01:01:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2024-11-07 01:01:02,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 3262. [2024-11-07 01:01:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3172 states have (on average 1.764186633039092) internal successors, (5596), 3176 states have internal predecessors, (5596), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-07 01:01:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 5737 transitions. [2024-11-07 01:01:02,553 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 5737 transitions. Word has length 178 [2024-11-07 01:01:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:02,553 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 5737 transitions. [2024-11-07 01:01:02,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:02,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 5737 transitions. [2024-11-07 01:01:02,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:02,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:02,557 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:02,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:01:02,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:02,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1233292527, now seen corresponding path program 1 times [2024-11-07 01:01:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:02,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940768970] [2024-11-07 01:01:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:02,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:02,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:02,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:02,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:02,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:02,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:02,796 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 01:01:02,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:02,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940768970] [2024-11-07 01:01:02,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940768970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:02,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:02,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:02,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040331292] [2024-11-07 01:01:02,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:02,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:02,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:02,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:02,801 INFO L87 Difference]: Start difference. First operand 3262 states and 5737 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:05,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:05,729 INFO L93 Difference]: Finished difference Result 5877 states and 9930 transitions. [2024-11-07 01:01:05,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:05,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:05,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:05,745 INFO L225 Difference]: With dead ends: 5877 [2024-11-07 01:01:05,745 INFO L226 Difference]: Without dead ends: 4756 [2024-11-07 01:01:05,748 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 01:01:05,750 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5677 mSDsluCounter, 17128 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 21421 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:05,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 21421 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:01:05,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2024-11-07 01:01:05,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3987. [2024-11-07 01:01:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3987 states, 3841 states have (on average 1.72533194480604) internal successors, (6627), 3847 states have internal predecessors, (6627), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-07 01:01:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 6860 transitions. [2024-11-07 01:01:05,882 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 6860 transitions. Word has length 178 [2024-11-07 01:01:05,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:05,882 INFO L471 AbstractCegarLoop]: Abstraction has 3987 states and 6860 transitions. [2024-11-07 01:01:05,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:05,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 6860 transitions. [2024-11-07 01:01:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:05,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:05,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:05,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:01:05,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:05,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash -171899151, now seen corresponding path program 1 times [2024-11-07 01:01:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:05,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637744011] [2024-11-07 01:01:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:05,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:06,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:06,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:06,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:06,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:06,102 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 01:01:06,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:06,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637744011] [2024-11-07 01:01:06,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637744011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:06,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:06,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:06,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643767552] [2024-11-07 01:01:06,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:06,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:06,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:06,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:06,104 INFO L87 Difference]: Start difference. First operand 3987 states and 6860 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:09,310 INFO L93 Difference]: Finished difference Result 8542 states and 14121 transitions. [2024-11-07 01:01:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:09,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:09,334 INFO L225 Difference]: With dead ends: 8542 [2024-11-07 01:01:09,334 INFO L226 Difference]: Without dead ends: 6696 [2024-11-07 01:01:09,339 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 01:01:09,340 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5563 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3571 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5582 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:09,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5582 Valid, 22350 Invalid, 3634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3571 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-07 01:01:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2024-11-07 01:01:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 5438. [2024-11-07 01:01:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5180 states have (on average 1.6774131274131274) internal successors, (8689), 5190 states have internal predecessors, (8689), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-07 01:01:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 9112 transitions. [2024-11-07 01:01:09,596 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 9112 transitions. Word has length 178 [2024-11-07 01:01:09,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:09,597 INFO L471 AbstractCegarLoop]: Abstraction has 5438 states and 9112 transitions. [2024-11-07 01:01:09,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 9112 transitions. [2024-11-07 01:01:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:09,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:09,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:09,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:01:09,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:09,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1722434735, now seen corresponding path program 1 times [2024-11-07 01:01:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:09,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678990530] [2024-11-07 01:01:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:09,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:09,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:09,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:09,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:09,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:09,852 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 01:01:09,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678990530] [2024-11-07 01:01:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678990530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:09,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:09,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:09,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36564907] [2024-11-07 01:01:09,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:09,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:09,858 INFO L87 Difference]: Start difference. First operand 5438 states and 9112 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:12,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:12,941 INFO L93 Difference]: Finished difference Result 13864 states and 22507 transitions. [2024-11-07 01:01:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:12,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:12,971 INFO L225 Difference]: With dead ends: 13864 [2024-11-07 01:01:12,971 INFO L226 Difference]: Without dead ends: 10567 [2024-11-07 01:01:12,980 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 01:01:12,980 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5559 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:12,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5578 Valid, 22350 Invalid, 3606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 01:01:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2024-11-07 01:01:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 8354. [2024-11-07 01:01:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 7872 states have (on average 1.630716463414634) internal successors, (12837), 7890 states have internal predecessors, (12837), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-07 01:01:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 13658 transitions. [2024-11-07 01:01:13,220 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 13658 transitions. Word has length 178 [2024-11-07 01:01:13,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:13,221 INFO L471 AbstractCegarLoop]: Abstraction has 8354 states and 13658 transitions. [2024-11-07 01:01:13,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:13,221 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 13658 transitions. [2024-11-07 01:01:13,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:13,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:13,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:13,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:01:13,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:13,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:13,226 INFO L85 PathProgramCache]: Analyzing trace with hash 799267309, now seen corresponding path program 1 times [2024-11-07 01:01:13,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:13,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620832864] [2024-11-07 01:01:13,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:13,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:13,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:13,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:13,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:13,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:13,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:13,514 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 01:01:13,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:13,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620832864] [2024-11-07 01:01:13,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620832864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:13,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:13,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:13,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687166552] [2024-11-07 01:01:13,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:13,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:13,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:13,516 INFO L87 Difference]: Start difference. First operand 8354 states and 13658 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:17,929 INFO L93 Difference]: Finished difference Result 24526 states and 39371 transitions. [2024-11-07 01:01:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:17,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:17,980 INFO L225 Difference]: With dead ends: 24526 [2024-11-07 01:01:17,980 INFO L226 Difference]: Without dead ends: 18313 [2024-11-07 01:01:18,000 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 01:01:18,000 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5558 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5577 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:18,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5577 Valid, 22350 Invalid, 3593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-07 01:01:18,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18313 states. [2024-11-07 01:01:18,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18313 to 14199. [2024-11-07 01:01:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14199 states, 13269 states have (on average 1.5940161278167158) internal successors, (21151), 13303 states have internal predecessors, (21151), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-07 01:01:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14199 states to 14199 states and 22822 transitions. [2024-11-07 01:01:18,557 INFO L78 Accepts]: Start accepts. Automaton has 14199 states and 22822 transitions. Word has length 178 [2024-11-07 01:01:18,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:18,557 INFO L471 AbstractCegarLoop]: Abstraction has 14199 states and 22822 transitions. [2024-11-07 01:01:18,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:18,557 INFO L276 IsEmpty]: Start isEmpty. Operand 14199 states and 22822 transitions. [2024-11-07 01:01:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:18,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:18,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:18,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:01:18,564 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:18,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:18,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1185129711, now seen corresponding path program 1 times [2024-11-07 01:01:18,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:18,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486072580] [2024-11-07 01:01:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:18,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:18,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:18,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:18,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:18,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:18,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:18,798 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 01:01:18,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:18,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486072580] [2024-11-07 01:01:18,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486072580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:18,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:18,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:18,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665482021] [2024-11-07 01:01:18,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:18,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:18,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:18,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:18,800 INFO L87 Difference]: Start difference. First operand 14199 states and 22822 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:20,971 INFO L93 Difference]: Finished difference Result 30624 states and 49244 transitions. [2024-11-07 01:01:20,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:01:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:21,023 INFO L225 Difference]: With dead ends: 30624 [2024-11-07 01:01:21,023 INFO L226 Difference]: Without dead ends: 18566 [2024-11-07 01:01:21,055 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 01:01:21,056 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 5111 mSDsluCounter, 16812 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 21080 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:21,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5131 Valid, 21080 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:01:21,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18566 states. [2024-11-07 01:01:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18566 to 14199. [2024-11-07 01:01:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14199 states, 13269 states have (on average 1.5915291280428066) internal successors, (21118), 13303 states have internal predecessors, (21118), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-07 01:01:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14199 states to 14199 states and 22789 transitions. [2024-11-07 01:01:21,839 INFO L78 Accepts]: Start accepts. Automaton has 14199 states and 22789 transitions. Word has length 178 [2024-11-07 01:01:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:21,839 INFO L471 AbstractCegarLoop]: Abstraction has 14199 states and 22789 transitions. [2024-11-07 01:01:21,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand 14199 states and 22789 transitions. [2024-11-07 01:01:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:21,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:21,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:21,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:01:21,847 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:21,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash 920482221, now seen corresponding path program 1 times [2024-11-07 01:01:21,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:21,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905250190] [2024-11-07 01:01:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:21,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:21,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:22,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:22,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:22,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:22,106 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 01:01:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905250190] [2024-11-07 01:01:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905250190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:22,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:22,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996655612] [2024-11-07 01:01:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:22,108 INFO L87 Difference]: Start difference. First operand 14199 states and 22789 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:26,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:26,018 INFO L93 Difference]: Finished difference Result 45815 states and 73057 transitions. [2024-11-07 01:01:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:26,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:26,094 INFO L225 Difference]: With dead ends: 45815 [2024-11-07 01:01:26,094 INFO L226 Difference]: Without dead ends: 33757 [2024-11-07 01:01:26,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:01:26,117 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5550 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5569 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:26,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5569 Valid, 22350 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 01:01:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33757 states. [2024-11-07 01:01:26,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33757 to 25953. [2024-11-07 01:01:27,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25953 states, 24127 states have (on average 1.5664608115389398) internal successors, (37794), 24193 states have internal predecessors, (37794), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-07 01:01:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25953 states to 25953 states and 41327 transitions. [2024-11-07 01:01:27,052 INFO L78 Accepts]: Start accepts. Automaton has 25953 states and 41327 transitions. Word has length 178 [2024-11-07 01:01:27,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:27,052 INFO L471 AbstractCegarLoop]: Abstraction has 25953 states and 41327 transitions. [2024-11-07 01:01:27,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 25953 states and 41327 transitions. [2024-11-07 01:01:27,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:27,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:27,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:27,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:01:27,062 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:27,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:27,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1443359441, now seen corresponding path program 1 times [2024-11-07 01:01:27,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:27,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987313977] [2024-11-07 01:01:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:27,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:27,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:27,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:27,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:27,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:01:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987313977] [2024-11-07 01:01:27,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987313977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:27,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:27,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:27,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224022222] [2024-11-07 01:01:27,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:27,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:27,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:27,251 INFO L87 Difference]: Start difference. First operand 25953 states and 41327 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:32,719 INFO L93 Difference]: Finished difference Result 88463 states and 141305 transitions. [2024-11-07 01:01:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:32,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:32,876 INFO L225 Difference]: With dead ends: 88463 [2024-11-07 01:01:32,876 INFO L226 Difference]: Without dead ends: 64651 [2024-11-07 01:01:32,928 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 01:01:32,929 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5549 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3479 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:32,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5568 Valid, 22350 Invalid, 3542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3479 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-07 01:01:32,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64651 states. [2024-11-07 01:01:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64651 to 49522. [2024-11-07 01:01:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49522 states, 45904 states have (on average 1.5518473335657024) internal successors, (71236), 46034 states have internal predecessors, (71236), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-07 01:01:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49522 states to 49522 states and 78979 transitions. [2024-11-07 01:01:35,366 INFO L78 Accepts]: Start accepts. Automaton has 49522 states and 78979 transitions. Word has length 178 [2024-11-07 01:01:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:35,367 INFO L471 AbstractCegarLoop]: Abstraction has 49522 states and 78979 transitions. [2024-11-07 01:01:35,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 49522 states and 78979 transitions. [2024-11-07 01:01:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:35,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:35,385 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:01:35,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:01:35,386 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:35,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:35,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1528428909, now seen corresponding path program 1 times [2024-11-07 01:01:35,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:35,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515002855] [2024-11-07 01:01:35,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:35,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:35,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:35,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:35,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:35,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:35,600 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 01:01:35,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515002855] [2024-11-07 01:01:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515002855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:35,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:35,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803901926] [2024-11-07 01:01:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:35,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:35,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:35,602 INFO L87 Difference]: Start difference. First operand 49522 states and 78979 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:43,577 INFO L93 Difference]: Finished difference Result 173758 states and 279647 transitions. [2024-11-07 01:01:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:01:43,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:44,055 INFO L225 Difference]: With dead ends: 173758 [2024-11-07 01:01:44,056 INFO L226 Difference]: Without dead ends: 126377 [2024-11-07 01:01:44,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:01:44,142 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5650 mSDsluCounter, 17128 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5669 SdHoareTripleChecker+Valid, 21421 SdHoareTripleChecker+Invalid, 3073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:44,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5669 Valid, 21421 Invalid, 3073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:01:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126377 states. [2024-11-07 01:01:49,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126377 to 96787. [2024-11-07 01:01:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96787 states, 89585 states have (on average 1.5438968577328793) internal successors, (138310), 89843 states have internal predecessors, (138310), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-07 01:01:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96787 states to 96787 states and 155931 transitions. [2024-11-07 01:01:49,592 INFO L78 Accepts]: Start accepts. Automaton has 96787 states and 155931 transitions. Word has length 178 [2024-11-07 01:01:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:01:49,593 INFO L471 AbstractCegarLoop]: Abstraction has 96787 states and 155931 transitions. [2024-11-07 01:01:49,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 96787 states and 155931 transitions. [2024-11-07 01:01:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:01:49,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:01:49,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:49,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:01:49,625 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:01:49,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:01:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash -869558929, now seen corresponding path program 1 times [2024-11-07 01:01:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:01:49,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957310179] [2024-11-07 01:01:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:01:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:01:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:49,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:01:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:49,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:01:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:49,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:01:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:49,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:01:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:49,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:01:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:01:49,803 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 01:01:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:01:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957310179] [2024-11-07 01:01:49,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957310179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:01:49,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:01:49,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:01:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222235982] [2024-11-07 01:01:49,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:01:49,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:01:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:01:49,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:01:49,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:01:49,804 INFO L87 Difference]: Start difference. First operand 96787 states and 155931 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:01:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:01:55,884 INFO L93 Difference]: Finished difference Result 222896 states and 366531 transitions. [2024-11-07 01:01:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:01:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-07 01:01:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:01:56,311 INFO L225 Difference]: With dead ends: 222896 [2024-11-07 01:01:56,311 INFO L226 Difference]: Without dead ends: 128250 [2024-11-07 01:01:56,516 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 01:01:56,517 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 5117 mSDsluCounter, 16812 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5137 SdHoareTripleChecker+Valid, 21080 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:01:56,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5137 Valid, 21080 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:01:56,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128250 states. [2024-11-07 01:02:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128250 to 96787. [2024-11-07 01:02:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96787 states, 89585 states have (on average 1.5410280738962996) internal successors, (138053), 89843 states have internal predecessors, (138053), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-07 01:02:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96787 states to 96787 states and 155674 transitions. [2024-11-07 01:02:00,765 INFO L78 Accepts]: Start accepts. Automaton has 96787 states and 155674 transitions. Word has length 178 [2024-11-07 01:02:00,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:02:00,765 INFO L471 AbstractCegarLoop]: Abstraction has 96787 states and 155674 transitions. [2024-11-07 01:02:00,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:02:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 96787 states and 155674 transitions. [2024-11-07 01:02:00,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-07 01:02:00,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:02:00,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:02:00,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:02:00,800 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:02:00,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:02:00,801 INFO L85 PathProgramCache]: Analyzing trace with hash -531271379, now seen corresponding path program 1 times [2024-11-07 01:02:00,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:02:00,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115935357] [2024-11-07 01:02:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:02:00,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:02:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:00,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:02:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:00,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 01:02:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:00,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-07 01:02:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:00,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-07 01:02:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:00,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 01:02:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:02:00,985 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 01:02:00,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:02:00,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115935357] [2024-11-07 01:02:00,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115935357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:02:00,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:02:00,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:02:00,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581188438] [2024-11-07 01:02:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:02:00,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:02:00,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:02:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:02:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:02:00,987 INFO L87 Difference]: Start difference. First operand 96787 states and 155674 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)