./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 22315e954f625a92454f179210263631b555d33fa4f07d11e85c64617a347172 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:19:19,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:19:20,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:19:20,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:19:20,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:19:20,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:19:20,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:19:20,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:19:20,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:19:20,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:19:20,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:19:20,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:19:20,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:19:20,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:19:20,133 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:19:20,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:19:20,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:19:20,136 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:19:20,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:19:20,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:19:20,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:19:20,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:19:20,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:19:20,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:19:20,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:19:20,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:19:20,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:19:20,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:19:20,142 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:19:20,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:19:20,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:19:20,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:19:20,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:20,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:19:20,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:19:20,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:19:20,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:19:20,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:19:20,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:19:20,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:19:20,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:19:20,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:19:20,146 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22315e954f625a92454f179210263631b555d33fa4f07d11e85c64617a347172 [2024-11-16 09:19:20,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:19:20,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:19:20,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:19:20,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:19:20,407 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:19:20,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c [2024-11-16 09:19:21,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:19:22,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:19:22,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c [2024-11-16 09:19:22,575 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c65d94c18/f3acfd10e5f244869f1798baa7fa6126/FLAGf61255583 [2024-11-16 09:19:22,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c65d94c18/f3acfd10e5f244869f1798baa7fa6126 [2024-11-16 09:19:22,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:19:22,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:19:22,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:22,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:19:22,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:19:22,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:22" (1/1) ... [2024-11-16 09:19:22,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c49acdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:22, skipping insertion in model container [2024-11-16 09:19:22,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:19:22" (1/1) ... [2024-11-16 09:19:22,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:19:24,282 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c[380593,380606] [2024-11-16 09:19:24,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c[383339,383352] [2024-11-16 09:19:24,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:24,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:19:25,333 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c[380593,380606] [2024-11-16 09:19:25,339 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-2.c[383339,383352] [2024-11-16 09:19:25,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:19:25,462 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:19:25,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25 WrapperNode [2024-11-16 09:19:25,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:19:25,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:25,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:19:25,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:19:25,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:25,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:25,847 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 12810 [2024-11-16 09:19:25,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:19:25,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:19:25,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:19:25,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:19:25,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:25,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,170 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]. [2024-11-16 09:19:26,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,340 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:19:26,543 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:19:26,547 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:19:26,547 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:19:26,548 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (1/1) ... [2024-11-16 09:19:26,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:19:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:19:26,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:19:26,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:19:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:19:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:19:26,724 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:19:26,724 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:19:26,731 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:19:26,731 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:19:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:19:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-16 09:19:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-16 09:19:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:19:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:19:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:19:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:19:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:19:26,732 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:19:26,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:19:26,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:19:26,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:19:26,943 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:19:26,949 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:19:34,652 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:19:34,653 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:19:34,653 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:19:34,654 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:19:34,654 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:19:34,655 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:19:34,655 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:19:35,018 INFO L? ?]: Removed 1717 outVars from TransFormulas that were not future-live. [2024-11-16 09:19:35,019 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:19:35,101 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:19:35,101 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:19:35,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:19:35 BoogieIcfgContainer [2024-11-16 09:19:35,102 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:19:35,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:19:35,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:19:35,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:19:35,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:19:22" (1/3) ... [2024-11-16 09:19:35,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68869712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:19:35, skipping insertion in model container [2024-11-16 09:19:35,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:19:25" (2/3) ... [2024-11-16 09:19:35,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68869712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:19:35, skipping insertion in model container [2024-11-16 09:19:35,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:19:35" (3/3) ... [2024-11-16 09:19:35,112 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.05.cil-2.c [2024-11-16 09:19:35,129 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:19:35,129 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:19:35,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:19:35,251 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;@778a710e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:19:35,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:19:35,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 2439 states, 2408 states have (on average 1.8384551495016612) internal successors, (4427), 2413 states have internal predecessors, (4427), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 09:19:35,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:35,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:35,286 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] [2024-11-16 09:19:35,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:35,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1318933517, now seen corresponding path program 1 times [2024-11-16 09:19:35,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:35,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095858777] [2024-11-16 09:19:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:35,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:35,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:35,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:35,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:35,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:35,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:35,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:35,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095858777] [2024-11-16 09:19:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095858777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:35,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:35,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:19:35,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183870153] [2024-11-16 09:19:35,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:35,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:19:35,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:35,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:19:35,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:19:35,975 INFO L87 Difference]: Start difference. First operand has 2439 states, 2408 states have (on average 1.8384551495016612) internal successors, (4427), 2413 states have internal predecessors, (4427), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:37,562 INFO L93 Difference]: Finished difference Result 5220 states and 9493 transitions. [2024-11-16 09:19:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:19:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:37,599 INFO L225 Difference]: With dead ends: 5220 [2024-11-16 09:19:37,599 INFO L226 Difference]: Without dead ends: 2722 [2024-11-16 09:19:37,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:37,612 INFO L432 NwaCegarLoop]: 4246 mSDtfsCounter, 4834 mSDsluCounter, 12761 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 17007 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:37,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 17007 Invalid, 1186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:19:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-11-16 09:19:37,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2590. [2024-11-16 09:19:37,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2540 states have (on average 1.8023622047244094) internal successors, (4578), 2544 states have internal predecessors, (4578), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:19:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4649 transitions. [2024-11-16 09:19:37,768 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4649 transitions. Word has length 107 [2024-11-16 09:19:37,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:37,769 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4649 transitions. [2024-11-16 09:19:37,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4649 transitions. [2024-11-16 09:19:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:37,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:37,774 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] [2024-11-16 09:19:37,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:19:37,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:37,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1959458763, now seen corresponding path program 1 times [2024-11-16 09:19:37,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:37,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914627808] [2024-11-16 09:19:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:37,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:37,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:38,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:38,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:38,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:38,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914627808] [2024-11-16 09:19:38,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914627808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:38,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:38,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:38,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476598086] [2024-11-16 09:19:38,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:38,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:38,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:38,047 INFO L87 Difference]: Start difference. First operand 2590 states and 4649 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:38,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:38,969 INFO L93 Difference]: Finished difference Result 3181 states and 5553 transitions. [2024-11-16 09:19:38,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:38,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:38,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:38,983 INFO L225 Difference]: With dead ends: 3181 [2024-11-16 09:19:38,984 INFO L226 Difference]: Without dead ends: 2727 [2024-11-16 09:19:38,988 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 [2024-11-16 09:19:38,990 INFO L432 NwaCegarLoop]: 4160 mSDtfsCounter, 4646 mSDsluCounter, 12376 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4659 SdHoareTripleChecker+Valid, 16536 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:38,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4659 Valid, 16536 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:19:38,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2024-11-16 09:19:39,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 2590. [2024-11-16 09:19:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2590 states, 2540 states have (on average 1.8015748031496064) internal successors, (4576), 2544 states have internal predecessors, (4576), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-16 09:19:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 4647 transitions. [2024-11-16 09:19:39,162 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 4647 transitions. Word has length 107 [2024-11-16 09:19:39,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:39,162 INFO L471 AbstractCegarLoop]: Abstraction has 2590 states and 4647 transitions. [2024-11-16 09:19:39,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 4647 transitions. [2024-11-16 09:19:39,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:39,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:39,169 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] [2024-11-16 09:19:39,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:19:39,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:39,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1020927148, now seen corresponding path program 1 times [2024-11-16 09:19:39,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:39,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101742426] [2024-11-16 09:19:39,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:39,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:39,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101742426] [2024-11-16 09:19:39,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101742426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:39,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:39,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:39,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839687527] [2024-11-16 09:19:39,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:39,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:39,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:39,393 INFO L87 Difference]: Start difference. First operand 2590 states and 4647 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:41,162 INFO L93 Difference]: Finished difference Result 3470 states and 5976 transitions. [2024-11-16 09:19:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:41,176 INFO L225 Difference]: With dead ends: 3470 [2024-11-16 09:19:41,177 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 09:19:41,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:41,181 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4758 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21503 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:41,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21503 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:19:41,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 09:19:41,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2805. [2024-11-16 09:19:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2734 states have (on average 1.776517922457937) internal successors, (4857), 2739 states have internal predecessors, (4857), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-16 09:19:41,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 4958 transitions. [2024-11-16 09:19:41,283 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 4958 transitions. Word has length 107 [2024-11-16 09:19:41,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:41,284 INFO L471 AbstractCegarLoop]: Abstraction has 2805 states and 4958 transitions. [2024-11-16 09:19:41,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:41,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 4958 transitions. [2024-11-16 09:19:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:41,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:41,288 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] [2024-11-16 09:19:41,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:19:41,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:41,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:41,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1406293931, now seen corresponding path program 1 times [2024-11-16 09:19:41,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:41,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113691494] [2024-11-16 09:19:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:41,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:41,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:41,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113691494] [2024-11-16 09:19:41,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113691494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:41,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:41,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:41,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136679887] [2024-11-16 09:19:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:41,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:41,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:41,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:41,488 INFO L87 Difference]: Start difference. First operand 2805 states and 4958 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:43,297 INFO L93 Difference]: Finished difference Result 4243 states and 7125 transitions. [2024-11-16 09:19:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:43,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:43,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:43,315 INFO L225 Difference]: With dead ends: 4243 [2024-11-16 09:19:43,315 INFO L226 Difference]: Without dead ends: 3574 [2024-11-16 09:19:43,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:43,320 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4756 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 21501 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:43,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 21501 Invalid, 1795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:19:43,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-11-16 09:19:43,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3237. [2024-11-16 09:19:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3124 states have (on average 1.735595390524968) internal successors, (5422), 3131 states have internal predecessors, (5422), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-16 09:19:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 5587 transitions. [2024-11-16 09:19:43,467 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 5587 transitions. Word has length 107 [2024-11-16 09:19:43,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:43,468 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 5587 transitions. [2024-11-16 09:19:43,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 5587 transitions. [2024-11-16 09:19:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:43,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:43,471 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] [2024-11-16 09:19:43,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:19:43,471 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:43,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:43,472 INFO L85 PathProgramCache]: Analyzing trace with hash 243842868, now seen corresponding path program 1 times [2024-11-16 09:19:43,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:43,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863561830] [2024-11-16 09:19:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:43,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:43,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:43,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863561830] [2024-11-16 09:19:43,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863561830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:43,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:43,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:43,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518415767] [2024-11-16 09:19:43,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:43,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:43,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:43,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:43,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:43,677 INFO L87 Difference]: Start difference. First operand 3237 states and 5587 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:45,395 INFO L93 Difference]: Finished difference Result 5745 states and 9350 transitions. [2024-11-16 09:19:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:19:45,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:45,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:45,417 INFO L225 Difference]: With dead ends: 5745 [2024-11-16 09:19:45,417 INFO L226 Difference]: Without dead ends: 4644 [2024-11-16 09:19:45,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:19:45,425 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4758 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21501 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:45,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21501 Invalid, 1781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:19:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-11-16 09:19:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 4103. [2024-11-16 09:19:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 3906 states have (on average 1.677931387608807) internal successors, (6554), 3917 states have internal predecessors, (6554), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-16 09:19:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 6853 transitions. [2024-11-16 09:19:45,646 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 6853 transitions. Word has length 107 [2024-11-16 09:19:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:45,646 INFO L471 AbstractCegarLoop]: Abstraction has 4103 states and 6853 transitions. [2024-11-16 09:19:45,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 6853 transitions. [2024-11-16 09:19:45,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:45,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:45,652 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] [2024-11-16 09:19:45,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:19:45,653 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:45,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:45,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188405, now seen corresponding path program 1 times [2024-11-16 09:19:45,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:45,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473707637] [2024-11-16 09:19:45,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:45,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:45,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:45,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473707637] [2024-11-16 09:19:45,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473707637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:45,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:45,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:45,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163352961] [2024-11-16 09:19:45,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:45,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:45,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:45,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:45,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:45,866 INFO L87 Difference]: Start difference. First operand 4103 states and 6853 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:47,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:47,592 INFO L93 Difference]: Finished difference Result 9373 states and 14750 transitions. [2024-11-16 09:19:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:19:47,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:47,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:47,628 INFO L225 Difference]: With dead ends: 9373 [2024-11-16 09:19:47,629 INFO L226 Difference]: Without dead ends: 7406 [2024-11-16 09:19:47,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:19:47,638 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4967 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4985 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:47,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4985 Valid, 21491 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:19:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7406 states. [2024-11-16 09:19:47,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7406 to 5826. [2024-11-16 09:19:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5469 states have (on average 1.6141890656427136) internal successors, (8828), 5488 states have internal predecessors, (8828), 237 states have call successors, (237), 103 states have call predecessors, (237), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:19:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9397 transitions. [2024-11-16 09:19:47,912 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9397 transitions. Word has length 107 [2024-11-16 09:19:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:47,914 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9397 transitions. [2024-11-16 09:19:47,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9397 transitions. [2024-11-16 09:19:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:47,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:47,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:19:47,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:19:47,920 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:47,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash 888946166, now seen corresponding path program 1 times [2024-11-16 09:19:47,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:47,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552637436] [2024-11-16 09:19:47,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:47,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:47,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:48,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:48,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:48,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:48,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:48,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:48,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552637436] [2024-11-16 09:19:48,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552637436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:48,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:48,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:48,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030516320] [2024-11-16 09:19:48,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:48,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:48,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:48,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:48,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:48,056 INFO L87 Difference]: Start difference. First operand 5826 states and 9397 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:48,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:48,883 INFO L93 Difference]: Finished difference Result 10455 states and 16406 transitions. [2024-11-16 09:19:48,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:48,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:48,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:48,913 INFO L225 Difference]: With dead ends: 10455 [2024-11-16 09:19:48,917 INFO L226 Difference]: Without dead ends: 6765 [2024-11-16 09:19:48,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:48,932 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4653 mSDsluCounter, 12374 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:48,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4666 Valid, 16533 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:19:48,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2024-11-16 09:19:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 5826. [2024-11-16 09:19:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5469 states have (on average 1.6110806363137684) internal successors, (8811), 5488 states have internal predecessors, (8811), 237 states have call successors, (237), 103 states have call predecessors, (237), 118 states have return successors, (332), 250 states have call predecessors, (332), 235 states have call successors, (332) [2024-11-16 09:19:49,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9380 transitions. [2024-11-16 09:19:49,253 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9380 transitions. Word has length 107 [2024-11-16 09:19:49,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:49,254 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9380 transitions. [2024-11-16 09:19:49,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9380 transitions. [2024-11-16 09:19:49,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:49,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:49,259 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] [2024-11-16 09:19:49,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:19:49,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:49,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2096864341, now seen corresponding path program 1 times [2024-11-16 09:19:49,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:49,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119744274] [2024-11-16 09:19:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:49,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:49,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:49,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:49,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119744274] [2024-11-16 09:19:49,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119744274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:49,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:49,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:49,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233297371] [2024-11-16 09:19:49,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:49,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:49,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:49,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:49,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:49,419 INFO L87 Difference]: Start difference. First operand 5826 states and 9380 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:51,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:51,264 INFO L93 Difference]: Finished difference Result 15526 states and 23872 transitions. [2024-11-16 09:19:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:19:51,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:51,309 INFO L225 Difference]: With dead ends: 15526 [2024-11-16 09:19:51,309 INFO L226 Difference]: Without dead ends: 11836 [2024-11-16 09:19:51,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:19:51,325 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4881 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:51,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4899 Valid, 21491 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:19:51,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11836 states. [2024-11-16 09:19:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11836 to 9278. [2024-11-16 09:19:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.552212800557556) internal successors, (13363), 8644 states have internal predecessors, (13363), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:19:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14510 transitions. [2024-11-16 09:19:51,908 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14510 transitions. Word has length 107 [2024-11-16 09:19:51,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:51,909 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14510 transitions. [2024-11-16 09:19:51,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:51,909 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14510 transitions. [2024-11-16 09:19:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:51,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:51,916 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] [2024-11-16 09:19:51,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:19:51,917 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:51,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash 611808790, now seen corresponding path program 1 times [2024-11-16 09:19:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846716869] [2024-11-16 09:19:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:51,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:52,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:52,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846716869] [2024-11-16 09:19:52,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846716869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:52,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367852344] [2024-11-16 09:19:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:52,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:52,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:52,080 INFO L87 Difference]: Start difference. First operand 9278 states and 14510 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:52,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:52,952 INFO L93 Difference]: Finished difference Result 18091 states and 27881 transitions. [2024-11-16 09:19:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:52,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:52,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:52,994 INFO L225 Difference]: With dead ends: 18091 [2024-11-16 09:19:52,994 INFO L226 Difference]: Without dead ends: 10949 [2024-11-16 09:19:53,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:19:53,019 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4652 mSDsluCounter, 12374 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4665 SdHoareTripleChecker+Valid, 16533 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:53,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4665 Valid, 16533 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:19:53,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10949 states. [2024-11-16 09:19:53,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10949 to 9278. [2024-11-16 09:19:53,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.5483796027413173) internal successors, (13330), 8644 states have internal predecessors, (13330), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:19:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14477 transitions. [2024-11-16 09:19:53,602 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14477 transitions. Word has length 107 [2024-11-16 09:19:53,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:53,604 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14477 transitions. [2024-11-16 09:19:53,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:53,604 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14477 transitions. [2024-11-16 09:19:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:53,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:53,615 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] [2024-11-16 09:19:53,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:19:53,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:53,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1395187765, now seen corresponding path program 1 times [2024-11-16 09:19:53,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:53,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514266606] [2024-11-16 09:19:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:53,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:53,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:53,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514266606] [2024-11-16 09:19:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514266606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:53,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:53,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:53,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881830188] [2024-11-16 09:19:53,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:53,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:53,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:53,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:53,792 INFO L87 Difference]: Start difference. First operand 9278 states and 14477 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:55,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:55,043 INFO L93 Difference]: Finished difference Result 18057 states and 27714 transitions. [2024-11-16 09:19:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:19:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:55,079 INFO L225 Difference]: With dead ends: 18057 [2024-11-16 09:19:55,079 INFO L226 Difference]: Without dead ends: 10915 [2024-11-16 09:19:55,100 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 [2024-11-16 09:19:55,101 INFO L432 NwaCegarLoop]: 4159 mSDtfsCounter, 4566 mSDsluCounter, 16476 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4579 SdHoareTripleChecker+Valid, 20635 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:55,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4579 Valid, 20635 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:19:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2024-11-16 09:19:55,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 9278. [2024-11-16 09:19:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 8609 states have (on average 1.5445464049250783) internal successors, (13297), 8644 states have internal predecessors, (13297), 437 states have call successors, (437), 199 states have call predecessors, (437), 230 states have return successors, (710), 466 states have call predecessors, (710), 435 states have call successors, (710) [2024-11-16 09:19:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 14444 transitions. [2024-11-16 09:19:55,529 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 14444 transitions. Word has length 107 [2024-11-16 09:19:55,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:55,530 INFO L471 AbstractCegarLoop]: Abstraction has 9278 states and 14444 transitions. [2024-11-16 09:19:55,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 14444 transitions. [2024-11-16 09:19:55,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:55,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:55,538 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] [2024-11-16 09:19:55,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:19:55,539 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:55,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:55,540 INFO L85 PathProgramCache]: Analyzing trace with hash 866268726, now seen corresponding path program 1 times [2024-11-16 09:19:55,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:55,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692207168] [2024-11-16 09:19:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:55,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:55,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:55,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:55,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:55,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:55,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:55,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692207168] [2024-11-16 09:19:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692207168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:55,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:55,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:19:55,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817066421] [2024-11-16 09:19:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:55,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:19:55,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:55,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:19:55,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:19:55,703 INFO L87 Difference]: Start difference. First operand 9278 states and 14444 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:19:57,699 INFO L93 Difference]: Finished difference Result 26784 states and 40516 transitions. [2024-11-16 09:19:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:19:57,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:19:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:19:57,768 INFO L225 Difference]: With dead ends: 26784 [2024-11-16 09:19:57,769 INFO L226 Difference]: Without dead ends: 19642 [2024-11-16 09:19:57,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:19:57,801 INFO L432 NwaCegarLoop]: 4336 mSDtfsCounter, 4746 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4764 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:19:57,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4764 Valid, 21491 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:19:57,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19642 states. [2024-11-16 09:19:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19642 to 16229. [2024-11-16 09:19:58,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16229 states, 14952 states have (on average 1.4991305510968431) internal successors, (22415), 15019 states have internal predecessors, (22415), 821 states have call successors, (821), 391 states have call predecessors, (821), 454 states have return successors, (1612), 882 states have call predecessors, (1612), 819 states have call successors, (1612) [2024-11-16 09:19:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16229 states to 16229 states and 24848 transitions. [2024-11-16 09:19:58,700 INFO L78 Accepts]: Start accepts. Automaton has 16229 states and 24848 transitions. Word has length 107 [2024-11-16 09:19:58,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:19:58,701 INFO L471 AbstractCegarLoop]: Abstraction has 16229 states and 24848 transitions. [2024-11-16 09:19:58,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:19:58,701 INFO L276 IsEmpty]: Start isEmpty. Operand 16229 states and 24848 transitions. [2024-11-16 09:19:58,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:19:58,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:19:58,720 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] [2024-11-16 09:19:58,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:19:58,720 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:19:58,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:19:58,721 INFO L85 PathProgramCache]: Analyzing trace with hash 295017493, now seen corresponding path program 1 times [2024-11-16 09:19:58,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:19:58,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223033833] [2024-11-16 09:19:58,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:19:58,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:19:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:19:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:19:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:19:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:19:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:19:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:19:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:19:58,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:19:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223033833] [2024-11-16 09:19:58,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223033833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:19:58,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:19:58,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:19:58,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605637894] [2024-11-16 09:19:58,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:19:58,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:19:58,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:19:58,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:19:58,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:19:58,844 INFO L87 Difference]: Start difference. First operand 16229 states and 24848 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:01,394 INFO L93 Difference]: Finished difference Result 49386 states and 74125 transitions. [2024-11-16 09:20:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:20:01,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 107 [2024-11-16 09:20:01,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:01,509 INFO L225 Difference]: With dead ends: 49386 [2024-11-16 09:20:01,509 INFO L226 Difference]: Without dead ends: 35294 [2024-11-16 09:20:01,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:20:01,550 INFO L432 NwaCegarLoop]: 4367 mSDtfsCounter, 4999 mSDsluCounter, 12701 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 17068 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:01,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 17068 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:20:01,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35294 states. [2024-11-16 09:20:03,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35294 to 29535. [2024-11-16 09:20:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29535 states, 26989 states have (on average 1.4582237207751305) internal successors, (39356), 27185 states have internal predecessors, (39356), 1636 states have call successors, (1636), 781 states have call predecessors, (1636), 908 states have return successors, (3157), 1632 states have call predecessors, (3157), 1634 states have call successors, (3157) [2024-11-16 09:20:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29535 states to 29535 states and 44149 transitions. [2024-11-16 09:20:03,435 INFO L78 Accepts]: Start accepts. Automaton has 29535 states and 44149 transitions. Word has length 107 [2024-11-16 09:20:03,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:03,436 INFO L471 AbstractCegarLoop]: Abstraction has 29535 states and 44149 transitions. [2024-11-16 09:20:03,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:20:03,436 INFO L276 IsEmpty]: Start isEmpty. Operand 29535 states and 44149 transitions. [2024-11-16 09:20:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:20:03,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:03,496 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:03,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:20:03,497 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:03,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash -777789897, now seen corresponding path program 1 times [2024-11-16 09:20:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:03,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975638826] [2024-11-16 09:20:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:20:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:20:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:20:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:20:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:20:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:20:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:20:03,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:03,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975638826] [2024-11-16 09:20:03,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975638826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:20:03,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693292418] [2024-11-16 09:20:03,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:03,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:20:03,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:20:03,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:20:03,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:20:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:03,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:20:03,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:20:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-16 09:20:03,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:20:03,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693292418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:03,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:20:03,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:20:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529534785] [2024-11-16 09:20:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:03,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:20:03,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:20:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:20:03,946 INFO L87 Difference]: Start difference. First operand 29535 states and 44149 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:20:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:06,233 INFO L93 Difference]: Finished difference Result 83550 states and 124097 transitions. [2024-11-16 09:20:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:20:06,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2024-11-16 09:20:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:06,429 INFO L225 Difference]: With dead ends: 83550 [2024-11-16 09:20:06,429 INFO L226 Difference]: Without dead ends: 56152 [2024-11-16 09:20:06,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:20:06,513 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 4251 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:06,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:20:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56152 states. [2024-11-16 09:20:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56152 to 55627. [2024-11-16 09:20:09,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55627 states, 50673 states have (on average 1.4440234444378663) internal successors, (73173), 51062 states have internal predecessors, (73173), 3136 states have call successors, (3136), 1561 states have call predecessors, (3136), 1816 states have return successors, (6117), 3067 states have call predecessors, (6117), 3134 states have call successors, (6117) [2024-11-16 09:20:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55627 states to 55627 states and 82426 transitions. [2024-11-16 09:20:10,040 INFO L78 Accepts]: Start accepts. Automaton has 55627 states and 82426 transitions. Word has length 176 [2024-11-16 09:20:10,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:10,041 INFO L471 AbstractCegarLoop]: Abstraction has 55627 states and 82426 transitions. [2024-11-16 09:20:10,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:20:10,042 INFO L276 IsEmpty]: Start isEmpty. Operand 55627 states and 82426 transitions. [2024-11-16 09:20:10,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:20:10,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:10,122 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:10,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:20:10,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 09:20:10,324 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:10,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:10,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1454955663, now seen corresponding path program 1 times [2024-11-16 09:20:10,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:10,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7781744] [2024-11-16 09:20:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:10,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:20:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:20:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:20:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:20:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:20:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:20:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:20:10,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7781744] [2024-11-16 09:20:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7781744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:20:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313418807] [2024-11-16 09:20:10,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:10,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:20:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:20:10,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:20:10,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:20:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:10,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:20:10,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:20:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 09:20:10,733 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:20:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313418807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:10,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:20:10,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:20:10,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052607494] [2024-11-16 09:20:10,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:10,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:20:10,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:20:10,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:20:10,736 INFO L87 Difference]: Start difference. First operand 55627 states and 82426 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:20:15,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:20:15,610 INFO L93 Difference]: Finished difference Result 161046 states and 238478 transitions. [2024-11-16 09:20:15,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:20:15,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 176 [2024-11-16 09:20:15,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:20:16,112 INFO L225 Difference]: With dead ends: 161046 [2024-11-16 09:20:16,112 INFO L226 Difference]: Without dead ends: 107556 [2024-11-16 09:20:16,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:20:16,224 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 4245 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4245 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:20:16,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4245 Valid, 4616 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:20:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107556 states. [2024-11-16 09:20:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107556 to 106511. [2024-11-16 09:20:22,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106511 states, 96871 states have (on average 1.4374477397776424) internal successors, (139247), 97646 states have internal predecessors, (139247), 6006 states have call successors, (6006), 3121 states have call predecessors, (6006), 3632 states have return successors, (11907), 5807 states have call predecessors, (11907), 6004 states have call successors, (11907) [2024-11-16 09:20:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106511 states to 106511 states and 157160 transitions. [2024-11-16 09:20:22,914 INFO L78 Accepts]: Start accepts. Automaton has 106511 states and 157160 transitions. Word has length 176 [2024-11-16 09:20:22,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:20:22,915 INFO L471 AbstractCegarLoop]: Abstraction has 106511 states and 157160 transitions. [2024-11-16 09:20:22,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:20:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 106511 states and 157160 transitions. [2024-11-16 09:20:23,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 09:20:23,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:20:23,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:20:23,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:20:23,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 09:20:23,307 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:20:23,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:20:23,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1188209621, now seen corresponding path program 1 times [2024-11-16 09:20:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:20:23,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356891432] [2024-11-16 09:20:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:20:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:20:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 09:20:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 09:20:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 09:20:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 09:20:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 09:20:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 09:20:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 09:20:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:20:23,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:20:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356891432] [2024-11-16 09:20:23,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356891432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:20:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731135720] [2024-11-16 09:20:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:20:23,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:20:23,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:20:23,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:20:23,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:20:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:20:23,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:20:23,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:20:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 09:20:23,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:20:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731135720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:20:23,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:20:23,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 09:20:23,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453434554] [2024-11-16 09:20:23,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:20:23,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:20:23,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:20:23,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:20:23,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:20:23,719 INFO L87 Difference]: Start difference. First operand 106511 states and 157160 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)