./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.09.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/pc_sfifo_1.cil-2+token_ring.09.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', '6d55d399b7f413c968459e57be858565c9c3a03797404fd2613513b79af9aeb3'] 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/pc_sfifo_1.cil-2+token_ring.09.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 6d55d399b7f413c968459e57be858565c9c3a03797404fd2613513b79af9aeb3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:43:08,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:43:08,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:43:08,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:43:08,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:43:08,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:43:08,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:43:08,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:43:08,141 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:43:08,142 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:43:08,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:43:08,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:43:08,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:43:08,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:43:08,143 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:43:08,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:43:08,143 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:43:08,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:43:08,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:43:08,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:43:08,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:43:08,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:43:08,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:43:08,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:43:08,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:43:08,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:43:08,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:43:08,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:43:08,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:43:08,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:43:08,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:43:08,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:43:08,146 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 -> 6d55d399b7f413c968459e57be858565c9c3a03797404fd2613513b79af9aeb3 [2024-11-07 01:43:08,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:43:08,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:43:08,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:43:08,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:43:08,426 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:43:08,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-1.c [2024-11-07 01:43:09,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:43:09,942 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:43:09,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-1.c [2024-11-07 01:43:09,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a66b97e6e/f9b0d9653ee040a58f8569d67ab9a704/FLAG2953ca98c [2024-11-07 01:43:09,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a66b97e6e/f9b0d9653ee040a58f8569d67ab9a704 [2024-11-07 01:43:09,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:43:09,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:43:09,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:43:09,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:43:09,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:43:09,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:43:09" (1/1) ... [2024-11-07 01:43:09,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc75e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:09, skipping insertion in model container [2024-11-07 01:43:09,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:43:09" (1/1) ... [2024-11-07 01:43:10,014 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:43:10,120 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/pc_sfifo_1.cil-2+token_ring.09.cil-1.c[913,926] [2024-11-07 01:43:10,160 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/pc_sfifo_1.cil-2+token_ring.09.cil-1.c[5977,5990] [2024-11-07 01:43:10,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:43:10,239 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:43:10,247 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/pc_sfifo_1.cil-2+token_ring.09.cil-1.c[913,926] [2024-11-07 01:43:10,262 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/pc_sfifo_1.cil-2+token_ring.09.cil-1.c[5977,5990] [2024-11-07 01:43:10,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:43:10,318 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:43:10,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10 WrapperNode [2024-11-07 01:43:10,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:43:10,320 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:43:10,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:43:10,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:43:10,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,366 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 903 [2024-11-07 01:43:10,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:43:10,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:43:10,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:43:10,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:43:10,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,377 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,389 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 01:43:10,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:43:10,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:43:10,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:43:10,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:43:10,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (1/1) ... [2024-11-07 01:43:10,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:43:10,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:43:10,447 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 01:43:10,450 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 01:43:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:43:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:43:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-07 01:43:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-07 01:43:10,599 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:43:10,605 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:43:11,277 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2024-11-07 01:43:11,277 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:43:11,296 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:43:11,300 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 01:43:11,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:11 BoogieIcfgContainer [2024-11-07 01:43:11,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:43:11,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:43:11,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:43:11,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:43:11,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:43:09" (1/3) ... [2024-11-07 01:43:11,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495c8dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:11, skipping insertion in model container [2024-11-07 01:43:11,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:43:10" (2/3) ... [2024-11-07 01:43:11,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495c8dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:11, skipping insertion in model container [2024-11-07 01:43:11,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:11" (3/3) ... [2024-11-07 01:43:11,307 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.09.cil-1.c [2024-11-07 01:43:11,318 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:43:11,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:43:11,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:43:11,385 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;@39e05d0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:43:11,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:43:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 348 states have (on average 1.617816091954023) internal successors, (563), 353 states have internal predecessors, (563), 29 states have call successors, (29), 9 states have call predecessors, (29), 9 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-07 01:43:11,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-07 01:43:11,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:11,400 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] [2024-11-07 01:43:11,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:11,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:11,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2053046794, now seen corresponding path program 1 times [2024-11-07 01:43:11,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:11,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453555515] [2024-11-07 01:43:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:11,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:11,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:11,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-07 01:43:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:11,645 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 01:43:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453555515] [2024-11-07 01:43:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453555515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:43:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821650391] [2024-11-07 01:43:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:11,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:43:11,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:11,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:43:11,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:43:11,672 INFO L87 Difference]: Start difference. First operand has 389 states, 348 states have (on average 1.617816091954023) internal successors, (563), 353 states have internal predecessors, (563), 29 states have call successors, (29), 9 states have call predecessors, (29), 9 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:43:12,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:12,224 INFO L93 Difference]: Finished difference Result 826 states and 1316 transitions. [2024-11-07 01:43:12,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:43:12,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-07 01:43:12,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:12,234 INFO L225 Difference]: With dead ends: 826 [2024-11-07 01:43:12,235 INFO L226 Difference]: Without dead ends: 449 [2024-11-07 01:43:12,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:43:12,240 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 773 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:12,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 748 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:43:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-07 01:43:12,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2024-11-07 01:43:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 397 states have (on average 1.5012594458438286) internal successors, (596), 401 states have internal predecessors, (596), 33 states have call successors, (33), 11 states have call predecessors, (33), 11 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2024-11-07 01:43:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 666 transitions. [2024-11-07 01:43:12,294 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 666 transitions. Word has length 44 [2024-11-07 01:43:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:12,295 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 666 transitions. [2024-11-07 01:43:12,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:43:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 666 transitions. [2024-11-07 01:43:12,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 01:43:12,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:12,297 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] [2024-11-07 01:43:12,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:43:12,298 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:12,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash -876886182, now seen corresponding path program 1 times [2024-11-07 01:43:12,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:12,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836756700] [2024-11-07 01:43:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 01:43:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,368 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 01:43:12,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:12,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836756700] [2024-11-07 01:43:12,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836756700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:12,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:12,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:43:12,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290481905] [2024-11-07 01:43:12,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:12,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:43:12,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:12,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:43:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:43:12,370 INFO L87 Difference]: Start difference. First operand 443 states and 666 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:43:12,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:12,832 INFO L93 Difference]: Finished difference Result 691 states and 1006 transitions. [2024-11-07 01:43:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:43:12,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-07 01:43:12,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:12,836 INFO L225 Difference]: With dead ends: 691 [2024-11-07 01:43:12,836 INFO L226 Difference]: Without dead ends: 567 [2024-11-07 01:43:12,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:43:12,837 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 309 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:12,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1024 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 01:43:12,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-07 01:43:12,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 510. [2024-11-07 01:43:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 458 states have (on average 1.48471615720524) internal successors, (680), 462 states have internal predecessors, (680), 36 states have call successors, (36), 14 states have call predecessors, (36), 14 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-07 01:43:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 756 transitions. [2024-11-07 01:43:12,880 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 756 transitions. Word has length 45 [2024-11-07 01:43:12,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:12,881 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 756 transitions. [2024-11-07 01:43:12,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:43:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 756 transitions. [2024-11-07 01:43:12,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-07 01:43:12,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:12,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:12,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:43:12,885 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:12,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:12,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2133723653, now seen corresponding path program 1 times [2024-11-07 01:43:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:12,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961437464] [2024-11-07 01:43:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 01:43:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:12,966 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 01:43:12,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961437464] [2024-11-07 01:43:12,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961437464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:12,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:12,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:43:12,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751921989] [2024-11-07 01:43:12,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:12,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:43:12,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:43:12,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:43:12,968 INFO L87 Difference]: Start difference. First operand 510 states and 756 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:43:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:13,306 INFO L93 Difference]: Finished difference Result 918 states and 1315 transitions. [2024-11-07 01:43:13,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:43:13,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-07 01:43:13,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:13,314 INFO L225 Difference]: With dead ends: 918 [2024-11-07 01:43:13,314 INFO L226 Difference]: Without dead ends: 727 [2024-11-07 01:43:13,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:43:13,315 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 783 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:13,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 743 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:43:13,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-07 01:43:13,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 675. [2024-11-07 01:43:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 604 states have (on average 1.4403973509933774) internal successors, (870), 611 states have internal predecessors, (870), 47 states have call successors, (47), 21 states have call predecessors, (47), 22 states have return successors, (57), 43 states have call predecessors, (57), 45 states have call successors, (57) [2024-11-07 01:43:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 974 transitions. [2024-11-07 01:43:13,364 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 974 transitions. Word has length 45 [2024-11-07 01:43:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:13,364 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 974 transitions. [2024-11-07 01:43:13,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 01:43:13,364 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 974 transitions. [2024-11-07 01:43:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-07 01:43:13,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:13,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:13,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:43:13,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:13,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:13,367 INFO L85 PathProgramCache]: Analyzing trace with hash -197650662, now seen corresponding path program 1 times [2024-11-07 01:43:13,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:13,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689409725] [2024-11-07 01:43:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:13,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 01:43:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:43:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-07 01:43:13,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:13,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689409725] [2024-11-07 01:43:13,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689409725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:13,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:13,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:43:13,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500233276] [2024-11-07 01:43:13,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:13,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:43:13,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:13,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:43:13,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:43:13,445 INFO L87 Difference]: Start difference. First operand 675 states and 974 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:43:13,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:13,829 INFO L93 Difference]: Finished difference Result 1259 states and 1759 transitions. [2024-11-07 01:43:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:43:13,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-07 01:43:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:13,834 INFO L225 Difference]: With dead ends: 1259 [2024-11-07 01:43:13,834 INFO L226 Difference]: Without dead ends: 903 [2024-11-07 01:43:13,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:43:13,836 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 293 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:13,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1077 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:43:13,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-07 01:43:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 865. [2024-11-07 01:43:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 770 states have (on average 1.3896103896103895) internal successors, (1070), 779 states have internal predecessors, (1070), 61 states have call successors, (61), 29 states have call predecessors, (61), 32 states have return successors, (81), 57 states have call predecessors, (81), 59 states have call successors, (81) [2024-11-07 01:43:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1212 transitions. [2024-11-07 01:43:13,902 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1212 transitions. Word has length 62 [2024-11-07 01:43:13,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:13,902 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1212 transitions. [2024-11-07 01:43:13,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:43:13,903 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1212 transitions. [2024-11-07 01:43:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-07 01:43:13,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:13,905 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:13,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:43:13,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:13,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash -670919807, now seen corresponding path program 1 times [2024-11-07 01:43:13,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:13,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251361934] [2024-11-07 01:43:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:13,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 01:43:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-07 01:43:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 01:43:13,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:13,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251361934] [2024-11-07 01:43:13,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251361934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:13,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:13,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 01:43:13,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865479268] [2024-11-07 01:43:13,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:13,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:43:13,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:13,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:43:13,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 01:43:13,967 INFO L87 Difference]: Start difference. First operand 865 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 01:43:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:14,291 INFO L93 Difference]: Finished difference Result 1518 states and 2065 transitions. [2024-11-07 01:43:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:43:14,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-07 01:43:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:14,297 INFO L225 Difference]: With dead ends: 1518 [2024-11-07 01:43:14,297 INFO L226 Difference]: Without dead ends: 1064 [2024-11-07 01:43:14,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:43:14,299 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 770 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:14,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 742 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 01:43:14,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2024-11-07 01:43:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1009. [2024-11-07 01:43:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 898 states have (on average 1.3596881959910914) internal successors, (1221), 909 states have internal predecessors, (1221), 69 states have call successors, (69), 35 states have call predecessors, (69), 40 states have return successors, (95), 65 states have call predecessors, (95), 67 states have call successors, (95) [2024-11-07 01:43:14,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1385 transitions. [2024-11-07 01:43:14,350 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1385 transitions. Word has length 67 [2024-11-07 01:43:14,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:14,351 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1385 transitions. [2024-11-07 01:43:14,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 01:43:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1385 transitions. [2024-11-07 01:43:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 01:43:14,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:14,356 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:14,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:43:14,356 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:14,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:14,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1405737071, now seen corresponding path program 1 times [2024-11-07 01:43:14,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:14,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301471692] [2024-11-07 01:43:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:14,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:14,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:14,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:43:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:14,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 01:43:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:43:14,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:14,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301471692] [2024-11-07 01:43:14,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301471692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:43:14,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584874492] [2024-11-07 01:43:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:14,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:14,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:43:14,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:43:14,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:43:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:14,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 01:43:14,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:43:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:43:14,702 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:43:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 01:43:14,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584874492] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 01:43:14,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 01:43:14,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2024-11-07 01:43:14,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631819591] [2024-11-07 01:43:14,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:14,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 01:43:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 01:43:14,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:43:14,755 INFO L87 Difference]: Start difference. First operand 1009 states and 1385 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:43:14,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:14,915 INFO L93 Difference]: Finished difference Result 1065 states and 1453 transitions. [2024-11-07 01:43:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 01:43:14,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-07 01:43:14,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:14,922 INFO L225 Difference]: With dead ends: 1065 [2024-11-07 01:43:14,923 INFO L226 Difference]: Without dead ends: 1062 [2024-11-07 01:43:14,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 01:43:14,923 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 1045 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:14,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 666 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:43:14,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-07 01:43:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1008. [2024-11-07 01:43:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 898 states have (on average 1.3574610244988865) internal successors, (1219), 908 states have internal predecessors, (1219), 68 states have call successors, (68), 35 states have call predecessors, (68), 40 states have return successors, (95), 65 states have call predecessors, (95), 67 states have call successors, (95) [2024-11-07 01:43:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1382 transitions. [2024-11-07 01:43:14,973 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1382 transitions. Word has length 68 [2024-11-07 01:43:14,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:14,973 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1382 transitions. [2024-11-07 01:43:14,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 01:43:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1382 transitions. [2024-11-07 01:43:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 01:43:14,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:14,976 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:14,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 01:43:15,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:15,178 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:15,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash 626993604, now seen corresponding path program 1 times [2024-11-07 01:43:15,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:15,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510394424] [2024-11-07 01:43:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:15,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:15,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:15,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:43:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:15,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 01:43:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:43:15,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510394424] [2024-11-07 01:43:15,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510394424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:43:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186563918] [2024-11-07 01:43:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:15,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:15,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:43:15,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:43:15,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:43:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:15,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 01:43:15,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:43:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:43:15,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:43:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 01:43:15,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186563918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:43:15,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:43:15,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 11 [2024-11-07 01:43:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860169195] [2024-11-07 01:43:15,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:43:15,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 01:43:15,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 01:43:15,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:43:15,722 INFO L87 Difference]: Start difference. First operand 1008 states and 1382 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-07 01:43:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:16,978 INFO L93 Difference]: Finished difference Result 2515 states and 3370 transitions. [2024-11-07 01:43:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 01:43:16,979 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-07 01:43:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:16,986 INFO L225 Difference]: With dead ends: 2515 [2024-11-07 01:43:16,987 INFO L226 Difference]: Without dead ends: 1971 [2024-11-07 01:43:16,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-07 01:43:16,989 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 984 mSDsluCounter, 2848 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:16,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 3295 Invalid, 2112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:43:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2024-11-07 01:43:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1371. [2024-11-07 01:43:17,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1222 states have (on average 1.3248772504091653) internal successors, (1619), 1240 states have internal predecessors, (1619), 88 states have call successors, (88), 49 states have call predecessors, (88), 59 states have return successors, (129), 82 states have call predecessors, (129), 87 states have call successors, (129) [2024-11-07 01:43:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1836 transitions. [2024-11-07 01:43:17,043 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1836 transitions. Word has length 69 [2024-11-07 01:43:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:17,044 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 1836 transitions. [2024-11-07 01:43:17,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-07 01:43:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1836 transitions. [2024-11-07 01:43:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 01:43:17,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:17,047 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:17,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 01:43:17,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:17,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:17,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash 755234672, now seen corresponding path program 1 times [2024-11-07 01:43:17,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:17,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965864108] [2024-11-07 01:43:17,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:17,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:43:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 01:43:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 01:43:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-07 01:43:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:17,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965864108] [2024-11-07 01:43:17,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965864108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:43:17,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223729131] [2024-11-07 01:43:17,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:17,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:17,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:43:17,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:43:17,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:43:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 01:43:17,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:43:17,524 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-07 01:43:17,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:43:17,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223729131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:17,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:43:17,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-07 01:43:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983935506] [2024-11-07 01:43:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:17,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:43:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:43:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:17,527 INFO L87 Difference]: Start difference. First operand 1371 states and 1836 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-07 01:43:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:17,601 INFO L93 Difference]: Finished difference Result 2068 states and 2740 transitions. [2024-11-07 01:43:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:43:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-07 01:43:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:17,609 INFO L225 Difference]: With dead ends: 2068 [2024-11-07 01:43:17,609 INFO L226 Difference]: Without dead ends: 1249 [2024-11-07 01:43:17,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:17,612 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 535 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:17,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 680 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:43:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-11-07 01:43:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1234. [2024-11-07 01:43:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1101 states have (on average 1.326975476839237) internal successors, (1461), 1118 states have internal predecessors, (1461), 80 states have call successors, (80), 43 states have call predecessors, (80), 51 states have return successors, (115), 73 states have call predecessors, (115), 79 states have call successors, (115) [2024-11-07 01:43:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1656 transitions. [2024-11-07 01:43:17,675 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1656 transitions. Word has length 88 [2024-11-07 01:43:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:17,676 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1656 transitions. [2024-11-07 01:43:17,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-07 01:43:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1656 transitions. [2024-11-07 01:43:17,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-07 01:43:17,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:17,681 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:17,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 01:43:17,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:17,886 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:17,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:17,886 INFO L85 PathProgramCache]: Analyzing trace with hash 599091826, now seen corresponding path program 1 times [2024-11-07 01:43:17,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:17,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491904368] [2024-11-07 01:43:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:17,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 01:43:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-07 01:43:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-07 01:43:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-07 01:43:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 01:43:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-07 01:43:17,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:17,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491904368] [2024-11-07 01:43:17,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491904368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:43:17,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674305866] [2024-11-07 01:43:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:17,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:43:17,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:43:18,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:43:18,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:43:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 01:43:18,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:43:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-07 01:43:18,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 01:43:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674305866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:18,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 01:43:18,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-07 01:43:18,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860201176] [2024-11-07 01:43:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:18,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:43:18,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:43:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:18,141 INFO L87 Difference]: Start difference. First operand 1234 states and 1656 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-07 01:43:18,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:18,187 INFO L93 Difference]: Finished difference Result 1613 states and 2124 transitions. [2024-11-07 01:43:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:43:18,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-07 01:43:18,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:18,189 INFO L225 Difference]: With dead ends: 1613 [2024-11-07 01:43:18,189 INFO L226 Difference]: Without dead ends: 313 [2024-11-07 01:43:18,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:18,192 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 62 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:18,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1170 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:43:18,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-07 01:43:18,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-11-07 01:43:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 283 states have (on average 1.5441696113074206) internal successors, (437), 284 states have internal predecessors, (437), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-07 01:43:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 483 transitions. [2024-11-07 01:43:18,205 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 483 transitions. Word has length 103 [2024-11-07 01:43:18,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:18,205 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 483 transitions. [2024-11-07 01:43:18,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-07 01:43:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 483 transitions. [2024-11-07 01:43:18,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:18,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:18,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:18,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 01:43:18,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-07 01:43:18,407 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:18,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:18,408 INFO L85 PathProgramCache]: Analyzing trace with hash 580625926, now seen corresponding path program 1 times [2024-11-07 01:43:18,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:18,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276939398] [2024-11-07 01:43:18,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:18,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:18,551 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 01:43:18,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:18,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276939398] [2024-11-07 01:43:18,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276939398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:18,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:18,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:43:18,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497695987] [2024-11-07 01:43:18,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:18,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:43:18,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:18,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:43:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:43:18,553 INFO L87 Difference]: Start difference. First operand 313 states and 483 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 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 01:43:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:19,675 INFO L93 Difference]: Finished difference Result 724 states and 1137 transitions. [2024-11-07 01:43:19,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:43:19,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:19,679 INFO L225 Difference]: With dead ends: 724 [2024-11-07 01:43:19,679 INFO L226 Difference]: Without dead ends: 422 [2024-11-07 01:43:19,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:43:19,681 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 819 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:19,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 622 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:43:19,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-07 01:43:19,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 313. [2024-11-07 01:43:19,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 283 states have (on average 1.540636042402827) internal successors, (436), 284 states have internal predecessors, (436), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-07 01:43:19,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 482 transitions. [2024-11-07 01:43:19,701 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 482 transitions. Word has length 145 [2024-11-07 01:43:19,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:19,701 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 482 transitions. [2024-11-07 01:43:19,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 3 states have internal predecessors, (135), 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 01:43:19,702 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 482 transitions. [2024-11-07 01:43:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:19,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:19,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:19,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:43:19,706 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:19,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:19,706 INFO L85 PathProgramCache]: Analyzing trace with hash 217159428, now seen corresponding path program 1 times [2024-11-07 01:43:19,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:19,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022191639] [2024-11-07 01:43:19,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:19,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:19,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:19,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:19,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:19,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:19,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:19,885 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 01:43:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022191639] [2024-11-07 01:43:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022191639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:19,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:19,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:43:19,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370256903] [2024-11-07 01:43:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:19,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:43:19,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:43:19,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:43:19,886 INFO L87 Difference]: Start difference. First operand 313 states and 482 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 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 01:43:21,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:21,801 INFO L93 Difference]: Finished difference Result 1133 states and 1789 transitions. [2024-11-07 01:43:21,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:43:21,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:21,806 INFO L225 Difference]: With dead ends: 1133 [2024-11-07 01:43:21,806 INFO L226 Difference]: Without dead ends: 838 [2024-11-07 01:43:21,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:43:21,808 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 1226 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1242 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:21,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1242 Valid, 1180 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:43:21,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-07 01:43:21,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 621. [2024-11-07 01:43:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 566 states have (on average 1.5530035335689045) internal successors, (879), 568 states have internal predecessors, (879), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-11-07 01:43:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 964 transitions. [2024-11-07 01:43:21,835 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 964 transitions. Word has length 145 [2024-11-07 01:43:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:21,836 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 964 transitions. [2024-11-07 01:43:21,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 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 01:43:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 964 transitions. [2024-11-07 01:43:21,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:21,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:21,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:21,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:43:21,838 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:21,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash -489437178, now seen corresponding path program 1 times [2024-11-07 01:43:21,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:21,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666830377] [2024-11-07 01:43:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:21,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:21,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:21,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:22,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:22,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:22,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:22,072 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 01:43:22,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:22,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666830377] [2024-11-07 01:43:22,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666830377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:22,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:22,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:22,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521077912] [2024-11-07 01:43:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:22,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:22,074 INFO L87 Difference]: Start difference. First operand 621 states and 964 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:24,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:24,366 INFO L93 Difference]: Finished difference Result 1871 states and 2956 transitions. [2024-11-07 01:43:24,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:43:24,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:24,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:24,371 INFO L225 Difference]: With dead ends: 1871 [2024-11-07 01:43:24,371 INFO L226 Difference]: Without dead ends: 1268 [2024-11-07 01:43:24,372 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 01:43:24,372 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 1257 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:24,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 2046 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:43:24,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-11-07 01:43:24,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 908. [2024-11-07 01:43:24,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 828 states have (on average 1.5458937198067633) internal successors, (1280), 831 states have internal predecessors, (1280), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-11-07 01:43:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1403 transitions. [2024-11-07 01:43:24,410 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1403 transitions. Word has length 145 [2024-11-07 01:43:24,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:24,410 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1403 transitions. [2024-11-07 01:43:24,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1403 transitions. [2024-11-07 01:43:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:24,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:24,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:24,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:43:24,412 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:24,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:24,412 INFO L85 PathProgramCache]: Analyzing trace with hash 457600708, now seen corresponding path program 1 times [2024-11-07 01:43:24,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:24,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678036359] [2024-11-07 01:43:24,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:24,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:24,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:24,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:24,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:24,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:24,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:24,645 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 01:43:24,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:24,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678036359] [2024-11-07 01:43:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678036359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:24,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:24,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:24,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563045441] [2024-11-07 01:43:24,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:24,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:24,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:24,647 INFO L87 Difference]: Start difference. First operand 908 states and 1403 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:27,174 INFO L93 Difference]: Finished difference Result 2958 states and 4663 transitions. [2024-11-07 01:43:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:43:27,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:27,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:27,191 INFO L225 Difference]: With dead ends: 2958 [2024-11-07 01:43:27,191 INFO L226 Difference]: Without dead ends: 2068 [2024-11-07 01:43:27,194 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 01:43:27,194 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1251 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:27,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 2044 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:43:27,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2024-11-07 01:43:27,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1486. [2024-11-07 01:43:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1356 states have (on average 1.5405604719764012) internal successors, (2089), 1361 states have internal predecessors, (2089), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-11-07 01:43:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2292 transitions. [2024-11-07 01:43:27,275 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2292 transitions. Word has length 145 [2024-11-07 01:43:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:27,275 INFO L471 AbstractCegarLoop]: Abstraction has 1486 states and 2292 transitions. [2024-11-07 01:43:27,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2292 transitions. [2024-11-07 01:43:27,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:27,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:27,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:27,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:43:27,277 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:27,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:27,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1592808190, now seen corresponding path program 1 times [2024-11-07 01:43:27,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:27,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791819954] [2024-11-07 01:43:27,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:27,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:27,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:27,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:27,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:27,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:27,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:27,524 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 01:43:27,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:27,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791819954] [2024-11-07 01:43:27,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791819954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:27,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:27,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:27,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152843619] [2024-11-07 01:43:27,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:27,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:27,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:27,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:27,525 INFO L87 Difference]: Start difference. First operand 1486 states and 2292 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:30,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:30,223 INFO L93 Difference]: Finished difference Result 5058 states and 7940 transitions. [2024-11-07 01:43:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:43:30,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:30,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:30,234 INFO L225 Difference]: With dead ends: 5058 [2024-11-07 01:43:30,234 INFO L226 Difference]: Without dead ends: 3590 [2024-11-07 01:43:30,236 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 01:43:30,237 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1250 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:30,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 2044 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2760 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:43:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2024-11-07 01:43:30,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 2643. [2024-11-07 01:43:30,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2413 states have (on average 1.5362619146290923) internal successors, (3707), 2422 states have internal predecessors, (3707), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-11-07 01:43:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 4076 transitions. [2024-11-07 01:43:30,417 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 4076 transitions. Word has length 145 [2024-11-07 01:43:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:30,417 INFO L471 AbstractCegarLoop]: Abstraction has 2643 states and 4076 transitions. [2024-11-07 01:43:30,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 4076 transitions. [2024-11-07 01:43:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:30,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:30,421 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:30,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:43:30,421 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:30,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:30,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1104761084, now seen corresponding path program 1 times [2024-11-07 01:43:30,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:30,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096262067] [2024-11-07 01:43:30,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:30,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:30,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:30,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:30,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:30,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:30,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:30,590 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 01:43:30,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:30,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096262067] [2024-11-07 01:43:30,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096262067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:30,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:30,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138526908] [2024-11-07 01:43:30,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:30,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:30,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:30,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:30,592 INFO L87 Difference]: Start difference. First operand 2643 states and 4076 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:31,922 INFO L93 Difference]: Finished difference Result 6234 states and 9785 transitions. [2024-11-07 01:43:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:43:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:31,933 INFO L225 Difference]: With dead ends: 6234 [2024-11-07 01:43:31,933 INFO L226 Difference]: Without dead ends: 3609 [2024-11-07 01:43:31,937 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 01:43:31,937 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1034 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:31,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 866 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:43:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2024-11-07 01:43:32,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 2643. [2024-11-07 01:43:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2413 states have (on average 1.5325321176958144) internal successors, (3698), 2422 states have internal predecessors, (3698), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-11-07 01:43:32,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 4067 transitions. [2024-11-07 01:43:32,049 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 4067 transitions. Word has length 145 [2024-11-07 01:43:32,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:32,050 INFO L471 AbstractCegarLoop]: Abstraction has 2643 states and 4067 transitions. [2024-11-07 01:43:32,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 4067 transitions. [2024-11-07 01:43:32,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:32,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:32,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:32,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:43:32,052 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:32,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2097571010, now seen corresponding path program 1 times [2024-11-07 01:43:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:32,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140573219] [2024-11-07 01:43:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:32,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:32,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:32,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:32,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:43:32,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:32,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140573219] [2024-11-07 01:43:32,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140573219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:32,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:32,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:32,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556988422] [2024-11-07 01:43:32,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:32,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:32,225 INFO L87 Difference]: Start difference. First operand 2643 states and 4067 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:33,632 INFO L93 Difference]: Finished difference Result 6224 states and 9738 transitions. [2024-11-07 01:43:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:43:33,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:33,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:33,649 INFO L225 Difference]: With dead ends: 6224 [2024-11-07 01:43:33,649 INFO L226 Difference]: Without dead ends: 3599 [2024-11-07 01:43:33,655 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 01:43:33,657 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1032 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:33,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 866 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:43:33,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2024-11-07 01:43:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 2643. [2024-11-07 01:43:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2413 states have (on average 1.5288023207625363) internal successors, (3689), 2422 states have internal predecessors, (3689), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-11-07 01:43:33,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 4058 transitions. [2024-11-07 01:43:33,811 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 4058 transitions. Word has length 145 [2024-11-07 01:43:33,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:33,811 INFO L471 AbstractCegarLoop]: Abstraction has 2643 states and 4058 transitions. [2024-11-07 01:43:33,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:33,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 4058 transitions. [2024-11-07 01:43:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:33,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:33,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:33,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:43:33,814 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:33,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:33,814 INFO L85 PathProgramCache]: Analyzing trace with hash 815398724, now seen corresponding path program 1 times [2024-11-07 01:43:33,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:33,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191176190] [2024-11-07 01:43:33,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:33,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:33,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:33,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:33,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:33,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:33,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:33,968 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 01:43:33,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:33,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191176190] [2024-11-07 01:43:33,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191176190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:33,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:33,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:33,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631456732] [2024-11-07 01:43:33,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:33,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:33,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:33,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:33,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:33,970 INFO L87 Difference]: Start difference. First operand 2643 states and 4058 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:35,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:35,191 INFO L93 Difference]: Finished difference Result 6214 states and 9691 transitions. [2024-11-07 01:43:35,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:43:35,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:35,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:35,202 INFO L225 Difference]: With dead ends: 6214 [2024-11-07 01:43:35,202 INFO L226 Difference]: Without dead ends: 3589 [2024-11-07 01:43:35,206 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 01:43:35,207 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1030 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:35,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 866 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:43:35,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2024-11-07 01:43:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 2643. [2024-11-07 01:43:35,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2413 states have (on average 1.5250725238292582) internal successors, (3680), 2422 states have internal predecessors, (3680), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-11-07 01:43:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 4049 transitions. [2024-11-07 01:43:35,376 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 4049 transitions. Word has length 145 [2024-11-07 01:43:35,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:35,376 INFO L471 AbstractCegarLoop]: Abstraction has 2643 states and 4049 transitions. [2024-11-07 01:43:35,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 4049 transitions. [2024-11-07 01:43:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:35,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:35,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:35,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:43:35,383 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:35,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:35,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1027076990, now seen corresponding path program 1 times [2024-11-07 01:43:35,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:35,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076731552] [2024-11-07 01:43:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:35,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:35,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:35,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:35,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:35,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:35,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:35,594 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 01:43:35,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:35,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076731552] [2024-11-07 01:43:35,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076731552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:35,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:35,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268572462] [2024-11-07 01:43:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:35,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:35,596 INFO L87 Difference]: Start difference. First operand 2643 states and 4049 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:38,090 INFO L93 Difference]: Finished difference Result 9227 states and 14318 transitions. [2024-11-07 01:43:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:43:38,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:38,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:38,106 INFO L225 Difference]: With dead ends: 9227 [2024-11-07 01:43:38,106 INFO L226 Difference]: Without dead ends: 6602 [2024-11-07 01:43:38,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:43:38,111 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 1304 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:38,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 1316 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:43:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6602 states. [2024-11-07 01:43:38,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6602 to 4991. [2024-11-07 01:43:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4561 states have (on average 1.5198421398816049) internal successors, (6932), 4578 states have internal predecessors, (6932), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-11-07 01:43:38,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7651 transitions. [2024-11-07 01:43:38,696 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7651 transitions. Word has length 145 [2024-11-07 01:43:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:38,696 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7651 transitions. [2024-11-07 01:43:38,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:38,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7651 transitions. [2024-11-07 01:43:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:38,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:38,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:38,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:43:38,703 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:38,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1545887620, now seen corresponding path program 1 times [2024-11-07 01:43:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:38,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054709047] [2024-11-07 01:43:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:38,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:38,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:38,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:38,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:38,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:38,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:38,897 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 01:43:38,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054709047] [2024-11-07 01:43:38,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054709047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:38,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:38,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:38,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123651540] [2024-11-07 01:43:38,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:38,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:38,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:38,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:38,900 INFO L87 Difference]: Start difference. First operand 4991 states and 7651 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:40,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:40,410 INFO L93 Difference]: Finished difference Result 11626 states and 18090 transitions. [2024-11-07 01:43:40,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:43:40,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:40,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:40,438 INFO L225 Difference]: With dead ends: 11626 [2024-11-07 01:43:40,438 INFO L226 Difference]: Without dead ends: 6653 [2024-11-07 01:43:40,450 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 01:43:40,450 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 904 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:40,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 1032 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:43:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6653 states. [2024-11-07 01:43:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6653 to 4991. [2024-11-07 01:43:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4991 states, 4561 states have (on average 1.5161148870861654) internal successors, (6915), 4578 states have internal predecessors, (6915), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-11-07 01:43:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4991 states to 4991 states and 7634 transitions. [2024-11-07 01:43:40,764 INFO L78 Accepts]: Start accepts. Automaton has 4991 states and 7634 transitions. Word has length 145 [2024-11-07 01:43:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:40,764 INFO L471 AbstractCegarLoop]: Abstraction has 4991 states and 7634 transitions. [2024-11-07 01:43:40,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4991 states and 7634 transitions. [2024-11-07 01:43:40,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:40,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:40,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:40,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:43:40,768 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:40,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:40,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1213244482, now seen corresponding path program 1 times [2024-11-07 01:43:40,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:40,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084903657] [2024-11-07 01:43:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:40,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:40,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:40,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:40,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:40,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:40,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:40,916 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 01:43:40,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:40,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084903657] [2024-11-07 01:43:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084903657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:40,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:40,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239763210] [2024-11-07 01:43:40,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:40,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:40,919 INFO L87 Difference]: Start difference. First operand 4991 states and 7634 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:44,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:44,399 INFO L93 Difference]: Finished difference Result 19561 states and 30252 transitions. [2024-11-07 01:43:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:43:44,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:44,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:44,458 INFO L225 Difference]: With dead ends: 19561 [2024-11-07 01:43:44,459 INFO L226 Difference]: Without dead ends: 14588 [2024-11-07 01:43:44,482 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 01:43:44,484 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 1551 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:44,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 2030 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:43:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14588 states. [2024-11-07 01:43:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14588 to 9602. [2024-11-07 01:43:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9602 states, 8788 states have (on average 1.5139963586709149) internal successors, (13305), 8821 states have internal predecessors, (13305), 583 states have call successors, (583), 198 states have call predecessors, (583), 230 states have return successors, (858), 614 states have call predecessors, (858), 583 states have call successors, (858) [2024-11-07 01:43:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9602 states to 9602 states and 14746 transitions. [2024-11-07 01:43:45,155 INFO L78 Accepts]: Start accepts. Automaton has 9602 states and 14746 transitions. Word has length 145 [2024-11-07 01:43:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:45,156 INFO L471 AbstractCegarLoop]: Abstraction has 9602 states and 14746 transitions. [2024-11-07 01:43:45,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9602 states and 14746 transitions. [2024-11-07 01:43:45,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:45,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:45,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:45,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:43:45,165 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:45,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1079836544, now seen corresponding path program 1 times [2024-11-07 01:43:45,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:45,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495855557] [2024-11-07 01:43:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:45,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:45,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:45,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:45,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:45,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:45,338 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 01:43:45,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:45,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495855557] [2024-11-07 01:43:45,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495855557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:45,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:45,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:45,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927863600] [2024-11-07 01:43:45,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:45,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:45,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:45,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:45,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:45,339 INFO L87 Difference]: Start difference. First operand 9602 states and 14746 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:49,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:49,281 INFO L93 Difference]: Finished difference Result 37530 states and 58246 transitions. [2024-11-07 01:43:49,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:43:49,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:49,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:49,348 INFO L225 Difference]: With dead ends: 37530 [2024-11-07 01:43:49,348 INFO L226 Difference]: Without dead ends: 27946 [2024-11-07 01:43:49,371 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 01:43:49,372 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1294 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:49,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 2034 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 01:43:49,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27946 states. [2024-11-07 01:43:50,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27946 to 18883. [2024-11-07 01:43:50,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18883 states, 17317 states have (on average 1.5140613270196916) internal successors, (26219), 17382 states have internal predecessors, (26219), 1111 states have call successors, (1111), 390 states have call predecessors, (1111), 454 states have return successors, (1904), 1174 states have call predecessors, (1904), 1111 states have call successors, (1904) [2024-11-07 01:43:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18883 states to 18883 states and 29234 transitions. [2024-11-07 01:43:50,498 INFO L78 Accepts]: Start accepts. Automaton has 18883 states and 29234 transitions. Word has length 145 [2024-11-07 01:43:50,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:50,499 INFO L471 AbstractCegarLoop]: Abstraction has 18883 states and 29234 transitions. [2024-11-07 01:43:50,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:50,499 INFO L276 IsEmpty]: Start isEmpty. Operand 18883 states and 29234 transitions. [2024-11-07 01:43:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:50,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:50,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:50,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:43:50,523 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:50,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 647308418, now seen corresponding path program 1 times [2024-11-07 01:43:50,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:50,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80564670] [2024-11-07 01:43:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:50,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:50,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:50,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:50,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:50,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:50,800 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 01:43:50,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:50,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80564670] [2024-11-07 01:43:50,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80564670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:50,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:50,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:50,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189969106] [2024-11-07 01:43:50,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:50,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:50,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:50,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:50,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:50,802 INFO L87 Difference]: Start difference. First operand 18883 states and 29234 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:43:56,388 INFO L93 Difference]: Finished difference Result 73081 states and 114284 transitions. [2024-11-07 01:43:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:43:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:43:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:43:56,578 INFO L225 Difference]: With dead ends: 73081 [2024-11-07 01:43:56,578 INFO L226 Difference]: Without dead ends: 54216 [2024-11-07 01:43:56,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:43:56,636 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1472 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:43:56,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 2034 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:43:56,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54216 states. [2024-11-07 01:43:59,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54216 to 37412. [2024-11-07 01:43:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37412 states, 34374 states have (on average 1.5150113457846046) internal successors, (52077), 34503 states have internal predecessors, (52077), 2135 states have call successors, (2135), 774 states have call predecessors, (2135), 902 states have return successors, (4450), 2262 states have call predecessors, (4450), 2135 states have call successors, (4450) [2024-11-07 01:43:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37412 states to 37412 states and 58662 transitions. [2024-11-07 01:43:59,416 INFO L78 Accepts]: Start accepts. Automaton has 37412 states and 58662 transitions. Word has length 145 [2024-11-07 01:43:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:43:59,416 INFO L471 AbstractCegarLoop]: Abstraction has 37412 states and 58662 transitions. [2024-11-07 01:43:59,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:43:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 37412 states and 58662 transitions. [2024-11-07 01:43:59,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:43:59,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:43:59,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:43:59,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 01:43:59,430 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:43:59,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:43:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1118664768, now seen corresponding path program 1 times [2024-11-07 01:43:59,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:43:59,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977706157] [2024-11-07 01:43:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:43:59,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:43:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:59,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:43:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:59,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:43:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:59,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:43:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:59,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:43:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:59,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:43:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:43:59,575 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 01:43:59,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:43:59,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977706157] [2024-11-07 01:43:59,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977706157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:43:59,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:43:59,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:43:59,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090712890] [2024-11-07 01:43:59,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:43:59,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:43:59,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:43:59,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:43:59,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:43:59,576 INFO L87 Difference]: Start difference. First operand 37412 states and 58662 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:44:08,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:44:08,385 INFO L93 Difference]: Finished difference Result 143000 states and 226418 transitions. [2024-11-07 01:44:08,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:44:08,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:44:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:44:08,899 INFO L225 Difference]: With dead ends: 143000 [2024-11-07 01:44:08,899 INFO L226 Difference]: Without dead ends: 105606 [2024-11-07 01:44:09,018 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 01:44:09,020 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1272 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2970 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:44:09,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 2034 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2970 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:44:09,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105606 states. [2024-11-07 01:44:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105606 to 74405. [2024-11-07 01:44:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74405 states, 68487 states have (on average 1.516419174441865) internal successors, (103855), 68744 states have internal predecessors, (103855), 4119 states have call successors, (4119), 1542 states have call predecessors, (4119), 1798 states have return successors, (10936), 4374 states have call predecessors, (10936), 4119 states have call successors, (10936) [2024-11-07 01:44:14,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74405 states to 74405 states and 118910 transitions. [2024-11-07 01:44:14,081 INFO L78 Accepts]: Start accepts. Automaton has 74405 states and 118910 transitions. Word has length 145 [2024-11-07 01:44:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:44:14,081 INFO L471 AbstractCegarLoop]: Abstraction has 74405 states and 118910 transitions. [2024-11-07 01:44:14,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:44:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 74405 states and 118910 transitions. [2024-11-07 01:44:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-07 01:44:14,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:44:14,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:44:14,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 01:44:14,108 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:44:14,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:44:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash -528698174, now seen corresponding path program 1 times [2024-11-07 01:44:14,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:44:14,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799253140] [2024-11-07 01:44:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:44:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:44:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:14,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:44:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:14,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 01:44:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:14,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-07 01:44:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-07 01:44:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:14,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 01:44:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:44:14,266 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 01:44:14,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:44:14,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799253140] [2024-11-07 01:44:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799253140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:44:14,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:44:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:44:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516562100] [2024-11-07 01:44:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:44:14,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:44:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:44:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:44:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:44:14,267 INFO L87 Difference]: Start difference. First operand 74405 states and 118910 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 01:44:28,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:44:28,752 INFO L93 Difference]: Finished difference Result 280471 states and 452744 transitions. [2024-11-07 01:44:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:44:28,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 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 145 [2024-11-07 01:44:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:44:29,485 INFO L225 Difference]: With dead ends: 280471 [2024-11-07 01:44:29,485 INFO L226 Difference]: Without dead ends: 206084 [2024-11-07 01:44:29,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:44:29,695 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1392 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:44:29,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 2034 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:44:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206084 states.