./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'bfa23a07aa8a02ca6771de75de8be171cc21a8c2878b440538c1944a91ea1c1d'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfa23a07aa8a02ca6771de75de8be171cc21a8c2878b440538c1944a91ea1c1d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:03:31,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:03:31,098 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:03:31,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:03:31,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:03:31,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:03:31,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:03:31,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:03:31,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:03:31,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:03:31,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:03:31,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:03:31,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:03:31,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:03:31,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:03:31,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:03:31,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:03:31,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:03:31,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:03:31,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:03:31,134 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 -> bfa23a07aa8a02ca6771de75de8be171cc21a8c2878b440538c1944a91ea1c1d [2024-11-07 01:03:31,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:03:31,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:03:31,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:03:31,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:03:31,408 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:03:31,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c [2024-11-07 01:03:32,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:03:33,121 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:03:33,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c [2024-11-07 01:03:33,164 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7699f3a0/a811ae4ece664180ba2af994cd020529/FLAGb582658a3 [2024-11-07 01:03:33,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7699f3a0/a811ae4ece664180ba2af994cd020529 [2024-11-07 01:03:33,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:03:33,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:03:33,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:03:33,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:03:33,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:03:33,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:33" (1/1) ... [2024-11-07 01:03:33,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77df371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:33, skipping insertion in model container [2024-11-07 01:03:33,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:33" (1/1) ... [2024-11-07 01:03:33,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:03:34,354 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[380323,380336] [2024-11-07 01:03:34,373 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[383339,383352] [2024-11-07 01:03:34,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:03:34,555 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:03:35,346 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[380323,380336] [2024-11-07 01:03:35,357 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.08.cil-1.c[383339,383352] [2024-11-07 01:03:35,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:03:35,478 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:03:35,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35 WrapperNode [2024-11-07 01:03:35,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:03:35,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:03:35,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:03:35,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:03:35,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:35,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:35,983 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2024-11-07 01:03:35,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:03:35,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:03:35,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:03:35,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:03:36,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,268 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 01:03:36,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:03:36,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:03:36,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:03:36,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:03:36,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (1/1) ... [2024-11-07 01:03:36,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:03:36,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:03:36,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 01:03:36,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 01:03:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:03:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:03:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:03:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:03:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:03:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:03:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:03:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:03:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:03:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:03:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:03:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:03:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:03:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:03:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:03:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:03:36,999 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:03:37,001 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:03:43,214 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-11-07 01:03:43,214 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:03:43,285 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:03:43,285 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-07 01:03:43,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:43 BoogieIcfgContainer [2024-11-07 01:03:43,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:03:43,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:03:43,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:03:43,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:03:43,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:03:33" (1/3) ... [2024-11-07 01:03:43,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f689aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:43, skipping insertion in model container [2024-11-07 01:03:43,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:35" (2/3) ... [2024-11-07 01:03:43,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f689aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:43, skipping insertion in model container [2024-11-07 01:03:43,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:43" (3/3) ... [2024-11-07 01:03:43,305 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.08.cil-1.c [2024-11-07 01:03:43,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:03:43,331 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:03:43,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:03:43,498 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;@784be814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:03:43,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:03:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 01:03:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:43,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:43,518 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] [2024-11-07 01:03:43,519 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:43,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:43,522 INFO L85 PathProgramCache]: Analyzing trace with hash -372695446, now seen corresponding path program 1 times [2024-11-07 01:03:43,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:43,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151933485] [2024-11-07 01:03:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:43,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:43,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:43,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:43,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:43,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:43,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151933485] [2024-11-07 01:03:43,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151933485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:43,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:43,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:03:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648790784] [2024-11-07 01:03:43,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:43,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:03:43,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:43,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:03:43,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:03:43,994 INFO L87 Difference]: Start difference. First operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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 01:03:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:45,161 INFO L93 Difference]: Finished difference Result 5040 states and 9262 transitions. [2024-11-07 01:03:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:03:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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 134 [2024-11-07 01:03:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:45,180 INFO L225 Difference]: With dead ends: 5040 [2024-11-07 01:03:45,180 INFO L226 Difference]: Without dead ends: 2505 [2024-11-07 01:03:45,188 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 01:03:45,190 INFO L432 NwaCegarLoop]: 4291 mSDtfsCounter, 747 mSDsluCounter, 12379 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 16670 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:45,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 16670 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:03:45,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-11-07 01:03:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2407. [2024-11-07 01:03:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2377 states have (on average 1.831299957930164) internal successors, (4353), 2379 states have internal predecessors, (4353), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 01:03:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4397 transitions. [2024-11-07 01:03:45,384 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4397 transitions. Word has length 134 [2024-11-07 01:03:45,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:45,384 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4397 transitions. [2024-11-07 01:03:45,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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 01:03:45,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4397 transitions. [2024-11-07 01:03:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:45,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:45,388 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] [2024-11-07 01:03:45,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:03:45,388 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:45,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash 333901160, now seen corresponding path program 1 times [2024-11-07 01:03:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:45,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278401748] [2024-11-07 01:03:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:45,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:45,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:45,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:45,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:45,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:45,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:45,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278401748] [2024-11-07 01:03:45,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278401748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:45,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:45,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:03:45,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075036105] [2024-11-07 01:03:45,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:45,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:03:45,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:45,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:03:45,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:03:45,682 INFO L87 Difference]: Start difference. First operand 2407 states and 4397 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 01:03:47,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:47,499 INFO L93 Difference]: Finished difference Result 3153 states and 5582 transitions. [2024-11-07 01:03:47,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:03:47,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 134 [2024-11-07 01:03:47,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:47,508 INFO L225 Difference]: With dead ends: 3153 [2024-11-07 01:03:47,508 INFO L226 Difference]: Without dead ends: 2883 [2024-11-07 01:03:47,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:03:47,510 INFO L432 NwaCegarLoop]: 4200 mSDtfsCounter, 5067 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 16802 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:47,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 16802 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:03:47,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2024-11-07 01:03:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2688. [2024-11-07 01:03:47,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 2634 states have (on average 1.8048595292331056) internal successors, (4754), 2637 states have internal predecessors, (4754), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-07 01:03:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 4835 transitions. [2024-11-07 01:03:47,578 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 4835 transitions. Word has length 134 [2024-11-07 01:03:47,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:47,578 INFO L471 AbstractCegarLoop]: Abstraction has 2688 states and 4835 transitions. [2024-11-07 01:03:47,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 01:03:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 4835 transitions. [2024-11-07 01:03:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:47,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:47,580 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] [2024-11-07 01:03:47,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:03:47,580 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:47,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:47,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1372602388, now seen corresponding path program 1 times [2024-11-07 01:03:47,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:47,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125937573] [2024-11-07 01:03:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:47,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:47,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:47,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:47,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:47,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:47,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:47,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:47,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:47,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125937573] [2024-11-07 01:03:47,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125937573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:47,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:47,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:47,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860962090] [2024-11-07 01:03:47,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:47,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:47,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:47,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:47,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:47,814 INFO L87 Difference]: Start difference. First operand 2688 states and 4835 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:50,175 INFO L93 Difference]: Finished difference Result 3824 states and 6638 transitions. [2024-11-07 01:03:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:50,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:03:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:50,202 INFO L225 Difference]: With dead ends: 3824 [2024-11-07 01:03:50,202 INFO L226 Difference]: Without dead ends: 3273 [2024-11-07 01:03:50,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:50,210 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 5086 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 21656 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:50,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 21656 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:03:50,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2024-11-07 01:03:50,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2950. [2024-11-07 01:03:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2872 states have (on average 1.7816852367688023) internal successors, (5117), 2876 states have internal predecessors, (5117), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-07 01:03:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5234 transitions. [2024-11-07 01:03:50,362 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5234 transitions. Word has length 134 [2024-11-07 01:03:50,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:50,362 INFO L471 AbstractCegarLoop]: Abstraction has 2950 states and 5234 transitions. [2024-11-07 01:03:50,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5234 transitions. [2024-11-07 01:03:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:50,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:50,364 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] [2024-11-07 01:03:50,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:03:50,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:50,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:50,364 INFO L85 PathProgramCache]: Analyzing trace with hash 629283882, now seen corresponding path program 1 times [2024-11-07 01:03:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833364202] [2024-11-07 01:03:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:50,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:50,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833364202] [2024-11-07 01:03:50,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833364202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:50,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:50,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:50,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493996801] [2024-11-07 01:03:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:50,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:50,580 INFO L87 Difference]: Start difference. First operand 2950 states and 5234 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:52,656 INFO L93 Difference]: Finished difference Result 4813 states and 8183 transitions. [2024-11-07 01:03:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:52,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:03:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:52,669 INFO L225 Difference]: With dead ends: 4813 [2024-11-07 01:03:52,669 INFO L226 Difference]: Without dead ends: 4000 [2024-11-07 01:03:52,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:52,672 INFO L432 NwaCegarLoop]: 4210 mSDtfsCounter, 5166 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5181 SdHoareTripleChecker+Valid, 20993 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:52,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5181 Valid, 20993 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:03:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4000 states. [2024-11-07 01:03:52,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4000 to 3475. [2024-11-07 01:03:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3349 states have (on average 1.74499850701702) internal successors, (5844), 3355 states have internal predecessors, (5844), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-07 01:03:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 6037 transitions. [2024-11-07 01:03:52,772 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 6037 transitions. Word has length 134 [2024-11-07 01:03:52,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:52,773 INFO L471 AbstractCegarLoop]: Abstraction has 3475 states and 6037 transitions. [2024-11-07 01:03:52,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 6037 transitions. [2024-11-07 01:03:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:52,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:52,776 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] [2024-11-07 01:03:52,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:03:52,777 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:52,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:52,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1938538452, now seen corresponding path program 1 times [2024-11-07 01:03:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:52,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597360331] [2024-11-07 01:03:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:52,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:52,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:52,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597360331] [2024-11-07 01:03:52,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597360331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:52,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:52,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:52,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885834708] [2024-11-07 01:03:52,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:52,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:52,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:52,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:52,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:52,961 INFO L87 Difference]: Start difference. First operand 3475 states and 6037 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:55,274 INFO L93 Difference]: Finished difference Result 6718 states and 11142 transitions. [2024-11-07 01:03:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:03:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:55,316 INFO L225 Difference]: With dead ends: 6718 [2024-11-07 01:03:55,317 INFO L226 Difference]: Without dead ends: 5380 [2024-11-07 01:03:55,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:55,324 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5084 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:55,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 21654 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:03:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-11-07 01:03:55,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 4526. [2024-11-07 01:03:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4304 states have (on average 1.695631970260223) internal successors, (7298), 4314 states have internal predecessors, (7298), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-07 01:03:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 7649 transitions. [2024-11-07 01:03:55,500 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 7649 transitions. Word has length 134 [2024-11-07 01:03:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:55,501 INFO L471 AbstractCegarLoop]: Abstraction has 4526 states and 7649 transitions. [2024-11-07 01:03:55,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 7649 transitions. [2024-11-07 01:03:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:55,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:55,506 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] [2024-11-07 01:03:55,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:03:55,507 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:55,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:55,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1467182102, now seen corresponding path program 1 times [2024-11-07 01:03:55,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:55,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207249002] [2024-11-07 01:03:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:55,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:55,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:55,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207249002] [2024-11-07 01:03:55,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207249002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:55,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:55,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:55,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948546978] [2024-11-07 01:03:55,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:55,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:55,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:55,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:55,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:55,670 INFO L87 Difference]: Start difference. First operand 4526 states and 7649 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:57,807 INFO L93 Difference]: Finished difference Result 10520 states and 17064 transitions. [2024-11-07 01:03:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:57,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:03:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:57,831 INFO L225 Difference]: With dead ends: 10520 [2024-11-07 01:03:57,832 INFO L226 Difference]: Without dead ends: 8131 [2024-11-07 01:03:57,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:57,839 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5080 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5095 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:57,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5095 Valid, 21654 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:03:57,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8131 states. [2024-11-07 01:03:58,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 6642. [2024-11-07 01:03:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6642 states, 6228 states have (on average 1.642581888246628) internal successors, (10230), 6246 states have internal predecessors, (10230), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-07 01:03:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6642 states to 6642 states and 10915 transitions. [2024-11-07 01:03:58,300 INFO L78 Accepts]: Start accepts. Automaton has 6642 states and 10915 transitions. Word has length 134 [2024-11-07 01:03:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:58,300 INFO L471 AbstractCegarLoop]: Abstraction has 6642 states and 10915 transitions. [2024-11-07 01:03:58,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:03:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 6642 states and 10915 transitions. [2024-11-07 01:03:58,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:03:58,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:58,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:03:58,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:03:58,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:58,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:58,305 INFO L85 PathProgramCache]: Analyzing trace with hash 696434472, now seen corresponding path program 1 times [2024-11-07 01:03:58,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:58,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100399482] [2024-11-07 01:03:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:58,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:03:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:03:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:03:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:03:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:03:58,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:58,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100399482] [2024-11-07 01:03:58,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100399482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:58,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:58,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:58,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539300291] [2024-11-07 01:03:58,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:58,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:58,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:58,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:58,460 INFO L87 Difference]: Start difference. First operand 6642 states and 10915 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:00,718 INFO L93 Difference]: Finished difference Result 18142 states and 29000 transitions. [2024-11-07 01:04:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:04:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:00,760 INFO L225 Difference]: With dead ends: 18142 [2024-11-07 01:04:00,761 INFO L226 Difference]: Without dead ends: 13637 [2024-11-07 01:04:00,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:00,773 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5079 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:00,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5094 Valid, 21654 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:04:00,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13637 states. [2024-11-07 01:04:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13637 to 10887. [2024-11-07 01:04:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 10089 states have (on average 1.5969868173258004) internal successors, (16112), 10123 states have internal predecessors, (16112), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-07 01:04:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 17519 transitions. [2024-11-07 01:04:01,290 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 17519 transitions. Word has length 134 [2024-11-07 01:04:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:01,290 INFO L471 AbstractCegarLoop]: Abstraction has 10887 states and 17519 transitions. [2024-11-07 01:04:01,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:01,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 17519 transitions. [2024-11-07 01:04:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:04:01,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:01,340 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] [2024-11-07 01:04:01,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:04:01,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:01,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash -342150102, now seen corresponding path program 1 times [2024-11-07 01:04:01,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:01,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845377051] [2024-11-07 01:04:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:01,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:04:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:04:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:04:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:04:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:04:01,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:01,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845377051] [2024-11-07 01:04:01,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845377051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:01,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:01,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726237437] [2024-11-07 01:04:01,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:01,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:01,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:01,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:01,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:01,619 INFO L87 Difference]: Start difference. First operand 10887 states and 17519 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:03,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:03,067 INFO L93 Difference]: Finished difference Result 22528 states and 36089 transitions. [2024-11-07 01:04:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:04:03,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:04:03,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:03,097 INFO L225 Difference]: With dead ends: 22528 [2024-11-07 01:04:03,097 INFO L226 Difference]: Without dead ends: 13778 [2024-11-07 01:04:03,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:04:03,115 INFO L432 NwaCegarLoop]: 4185 mSDtfsCounter, 4780 mSDsluCounter, 16543 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 20728 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:03,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 20728 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:04:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13778 states. [2024-11-07 01:04:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13778 to 10887. [2024-11-07 01:04:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 10089 states have (on average 1.5937159282386757) internal successors, (16079), 10123 states have internal predecessors, (16079), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-07 01:04:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 17486 transitions. [2024-11-07 01:04:03,572 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 17486 transitions. Word has length 134 [2024-11-07 01:04:03,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:03,572 INFO L471 AbstractCegarLoop]: Abstraction has 10887 states and 17486 transitions. [2024-11-07 01:04:03,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:03,572 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 17486 transitions. [2024-11-07 01:04:03,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:04:03,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:03,577 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] [2024-11-07 01:04:03,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:04:03,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:03,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:03,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1979651816, now seen corresponding path program 1 times [2024-11-07 01:04:03,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:03,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740298244] [2024-11-07 01:04:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:03,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:03,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:03,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:04:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:03,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:04:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:03,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:04:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:03,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:04:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:03,803 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 01:04:03,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:03,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740298244] [2024-11-07 01:04:03,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740298244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:03,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:03,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:03,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078880730] [2024-11-07 01:04:03,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:03,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:03,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:03,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:03,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:03,805 INFO L87 Difference]: Start difference. First operand 10887 states and 17486 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:06,898 INFO L93 Difference]: Finished difference Result 33351 states and 52830 transitions. [2024-11-07 01:04:06,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:04:06,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:04:06,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:06,973 INFO L225 Difference]: With dead ends: 33351 [2024-11-07 01:04:06,973 INFO L226 Difference]: Without dead ends: 24601 [2024-11-07 01:04:06,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:04:06,996 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5071 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:06,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5086 Valid, 21654 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:04:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24601 states. [2024-11-07 01:04:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24601 to 19441. [2024-11-07 01:04:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19441 states, 17875 states have (on average 1.5603356643356643) internal successors, (27891), 17941 states have internal predecessors, (27891), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-07 01:04:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19441 states to 19441 states and 30904 transitions. [2024-11-07 01:04:08,026 INFO L78 Accepts]: Start accepts. Automaton has 19441 states and 30904 transitions. Word has length 134 [2024-11-07 01:04:08,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:08,027 INFO L471 AbstractCegarLoop]: Abstraction has 19441 states and 30904 transitions. [2024-11-07 01:04:08,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:08,027 INFO L276 IsEmpty]: Start isEmpty. Operand 19441 states and 30904 transitions. [2024-11-07 01:04:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:04:08,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:08,036 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] [2024-11-07 01:04:08,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:04:08,037 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:08,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:08,038 INFO L85 PathProgramCache]: Analyzing trace with hash -162208662, now seen corresponding path program 1 times [2024-11-07 01:04:08,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:08,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029912145] [2024-11-07 01:04:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:08,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:08,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:04:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:08,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:04:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:08,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:04:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:08,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:04:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:04:08,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:08,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029912145] [2024-11-07 01:04:08,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029912145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:08,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:08,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:08,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270739969] [2024-11-07 01:04:08,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:08,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:08,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:08,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:08,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:08,265 INFO L87 Difference]: Start difference. First operand 19441 states and 30904 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:12,011 INFO L93 Difference]: Finished difference Result 71583 states and 113144 transitions. [2024-11-07 01:04:12,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:04:12,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:04:12,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:12,210 INFO L225 Difference]: With dead ends: 71583 [2024-11-07 01:04:12,210 INFO L226 Difference]: Without dead ends: 54279 [2024-11-07 01:04:12,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:04:12,261 INFO L432 NwaCegarLoop]: 4379 mSDtfsCounter, 5400 mSDsluCounter, 17265 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:12,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5424 Valid, 21644 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:04:12,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54279 states. [2024-11-07 01:04:14,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54279 to 36418. [2024-11-07 01:04:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36418 states, 33380 states have (on average 1.5421509886159377) internal successors, (51477), 33510 states have internal predecessors, (51477), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-07 01:04:14,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36418 states to 36418 states and 58060 transitions. [2024-11-07 01:04:14,214 INFO L78 Accepts]: Start accepts. Automaton has 36418 states and 58060 transitions. Word has length 134 [2024-11-07 01:04:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:14,215 INFO L471 AbstractCegarLoop]: Abstraction has 36418 states and 58060 transitions. [2024-11-07 01:04:14,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 36418 states and 58060 transitions. [2024-11-07 01:04:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:04:14,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:14,232 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] [2024-11-07 01:04:14,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:04:14,233 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:14,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:14,233 INFO L85 PathProgramCache]: Analyzing trace with hash -785490264, now seen corresponding path program 1 times [2024-11-07 01:04:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:14,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997238513] [2024-11-07 01:04:14,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:14,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:14,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:04:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:04:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:14,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:04:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:14,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:04:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:04:14,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:14,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997238513] [2024-11-07 01:04:14,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997238513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:14,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:14,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:14,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147942306] [2024-11-07 01:04:14,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:14,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:14,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:14,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:14,388 INFO L87 Difference]: Start difference. First operand 36418 states and 58060 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:20,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:20,463 INFO L93 Difference]: Finished difference Result 138190 states and 220638 transitions. [2024-11-07 01:04:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:04:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:04:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:20,812 INFO L225 Difference]: With dead ends: 138190 [2024-11-07 01:04:20,812 INFO L226 Difference]: Without dead ends: 103909 [2024-11-07 01:04:20,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:04:20,914 INFO L432 NwaCegarLoop]: 4236 mSDtfsCounter, 5209 mSDsluCounter, 16803 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 21039 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:20,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 21039 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:04:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103909 states. [2024-11-07 01:04:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103909 to 69667. [2024-11-07 01:04:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69667 states, 63749 states have (on average 1.532369135202121) internal successors, (97687), 64007 states have internal predecessors, (97687), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-07 01:04:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69667 states to 69667 states and 112740 transitions. [2024-11-07 01:04:24,231 INFO L78 Accepts]: Start accepts. Automaton has 69667 states and 112740 transitions. Word has length 134 [2024-11-07 01:04:24,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:04:24,232 INFO L471 AbstractCegarLoop]: Abstraction has 69667 states and 112740 transitions. [2024-11-07 01:04:24,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 69667 states and 112740 transitions. [2024-11-07 01:04:24,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 01:04:24,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:04:24,263 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] [2024-11-07 01:04:24,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:04:24,263 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:04:24,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:04:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash -667048790, now seen corresponding path program 1 times [2024-11-07 01:04:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:04:24,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515240114] [2024-11-07 01:04:24,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:04:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:04:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:24,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:04:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:24,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:04:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:24,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:04:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:24,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:04:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:24,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:04:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:04:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:04:24,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:04:24,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515240114] [2024-11-07 01:04:24,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515240114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:04:24,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:04:24,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:04:24,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623108106] [2024-11-07 01:04:24,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:04:24,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:04:24,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:04:24,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:04:24,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:04:24,451 INFO L87 Difference]: Start difference. First operand 69667 states and 112740 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 01:04:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:04:34,632 INFO L93 Difference]: Finished difference Result 267117 states and 434484 transitions. [2024-11-07 01:04:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:04:34,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-07 01:04:34,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:04:35,345 INFO L225 Difference]: With dead ends: 267117 [2024-11-07 01:04:35,346 INFO L226 Difference]: Without dead ends: 199587 [2024-11-07 01:04:35,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:04:35,584 INFO L432 NwaCegarLoop]: 4379 mSDtfsCounter, 5326 mSDsluCounter, 17265 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 01:04:35,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5350 Valid, 21644 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 01:04:35,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199587 states.